cpython-lru_cache-weakref: Modules/

annotate Modules/_struct.c @ 57303:4aa4c19dfaed legacy-trunk

#1757126: fix typo with the cyrillic_asian alias

author	Philip Jenvey <pjenvey@underboss.org>
date	Tue, 17 Nov 2009 02:42:26 +0000
parents	e759ca25701d
children	c2d9d50f37c5

rev	line source
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1 /* struct module -- pack values into and (out of) strings */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	2
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	3 /* New version supporting byte order, alignment and size options,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	4 character strings, and unsigned numbers */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	5
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	6 #define PY_SSIZE_T_CLEAN
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	7
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	8 #include "Python.h"
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	9 #include "structseq.h"
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	10 #include "structmember.h"
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	11 #include <ctype.h>
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	12
38266 74c82ebc4e44 forward declaration for PyStructType Bob Ippolito <bob@redivi.com> parents: 38264 diff changeset	13 static PyTypeObject PyStructType;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	14
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	15 /* compatibility macros */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	16 #if (PY_VERSION_HEX < 0x02050000)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	17 typedef int Py_ssize_t;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	18 #endif
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	19
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	20 /* If PY_STRUCT_FLOAT_COERCE is defined, the struct module will allow float
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	21 arguments for integer formats with a warning for backwards
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	22 compatibility. */
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	23
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	24 #define PY_STRUCT_FLOAT_COERCE 1
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	25
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	26 #ifdef PY_STRUCT_FLOAT_COERCE
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	27 #define FLOAT_COERCE "integer argument expected, got float"
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	28 #endif
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	29
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	30
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	31 /* The translation function for each format character is table driven */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	32 typedef struct _formatdef {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	33 char format;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	34 Py_ssize_t size;
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	35 Py_ssize_t alignment;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	36 PyObject* (unpack)(const char ,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	37 const struct _formatdef *);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	38 int (pack)(char , PyObject *,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	39 const struct _formatdef *);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	40 } formatdef;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	41
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	42 typedef struct _formatcode {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	43 const struct _formatdef *fmtdef;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	44 Py_ssize_t offset;
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	45 Py_ssize_t size;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	46 } formatcode;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	47
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	48 /* Struct object interface */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	49
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	50 typedef struct {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	51 PyObject_HEAD
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	52 Py_ssize_t s_size;
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	53 Py_ssize_t s_len;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	54 formatcode *s_codes;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	55 PyObject *s_format;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	56 PyObject weakreflist; / List of weak references */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	57 } PyStructObject;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	58
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	59
38267 cf5a9057ed3a fix typo in _struct Bob Ippolito <bob@redivi.com> parents: 38266 diff changeset	60 #define PyStruct_Check(op) PyObject_TypeCheck(op, &PyStructType)
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	61 #define PyStruct_CheckExact(op) (Py_TYPE(op) == &PyStructType)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	62
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	63
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	64 /* Exception */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	65
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	66 static PyObject *StructError;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	67
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	68
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	69 /* Define various structs to figure out the alignments of types */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	70
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	71
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	72 typedef struct { char c; short x; } st_short;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	73 typedef struct { char c; int x; } st_int;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	74 typedef struct { char c; long x; } st_long;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	75 typedef struct { char c; float x; } st_float;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	76 typedef struct { char c; double x; } st_double;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	77 typedef struct { char c; void *x; } st_void_p;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	78
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	79 #define SHORT_ALIGN (sizeof(st_short) - sizeof(short))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	80 #define INT_ALIGN (sizeof(st_int) - sizeof(int))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	81 #define LONG_ALIGN (sizeof(st_long) - sizeof(long))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	82 #define FLOAT_ALIGN (sizeof(st_float) - sizeof(float))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	83 #define DOUBLE_ALIGN (sizeof(st_double) - sizeof(double))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	84 #define VOID_P_ALIGN (sizeof(st_void_p) - sizeof(void *))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	85
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	86 /* We can't support q and Q in native mode unless the compiler does;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	87 in std mode, they're 8 bytes on all platforms. */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	88 #ifdef HAVE_LONG_LONG
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	89 typedef struct { char c; PY_LONG_LONG x; } s_long_long;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	90 #define LONG_LONG_ALIGN (sizeof(s_long_long) - sizeof(PY_LONG_LONG))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	91 #endif
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	92
40681 0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	93 #ifdef HAVE_C99_BOOL
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	94 #define BOOL_TYPE _Bool
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	95 typedef struct { char c; _Bool x; } s_bool;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	96 #define BOOL_ALIGN (sizeof(s_bool) - sizeof(BOOL_TYPE))
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	97 #else
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	98 #define BOOL_TYPE char
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	99 #define BOOL_ALIGN 0
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	100 #endif
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	101
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	102 #define STRINGIFY(x) #x
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	103
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	104 #ifdef __powerc
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	105 #pragma options align=reset
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	106 #endif
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	107
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	108 static char *integer_codes = "bBhHiIlLqQ";
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	109
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	110 /* Helper to get a PyLongObject by hook or by crook. Caller should decref. */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	111
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	112 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	113 get_pylong(PyObject *v)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	114 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	115 assert(v != NULL);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	116 if (PyInt_Check(v))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	117 return PyLong_FromLong(PyInt_AS_LONG(v));
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	118 if (PyLong_Check(v)) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	119 Py_INCREF(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	120 return v;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	121 }
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	122 #ifdef PY_STRUCT_FLOAT_COERCE
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	123 if (PyFloat_Check(v)) {
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	124 if (PyErr_WarnEx(PyExc_DeprecationWarning, FLOAT_COERCE, 2)<0)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	125 return NULL;
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	126 return PyNumber_Long(v);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	127 }
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	128 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	129 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	130 "cannot convert argument to long");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	131 return NULL;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	132 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	133
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	134 /* Helper to convert a Python object to a C long. Sets an exception
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	135 (struct.error for an inconvertible type, OverflowError for
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	136 out-of-range values) and returns -1 on error. */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	137
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	138 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	139 get_long(PyObject v, long p)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	140 {
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	141 long x;
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	142
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	143 v = get_pylong(v);
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	144 if (v == NULL)
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	145 return -1;
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	146 assert(PyLong_Check(v));
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	147 x = PyLong_AsLong(v);
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	148 Py_DECREF(v);
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	149 if (x == (long)-1 && PyErr_Occurred())
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	150 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	151 *p = x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	152 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	153 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	154
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	155 /* Same, but handling unsigned long */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	156
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	157 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	158 get_ulong(PyObject v, unsigned long p)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	159 {
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	160 unsigned long x;
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	161
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	162 v = get_pylong(v);
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	163 if (v == NULL)
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	164 return -1;
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	165 assert(PyLong_Check(v));
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	166 x = PyLong_AsUnsignedLong(v);
1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	167 Py_DECREF(v);
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	168 if (x == (unsigned long)-1 && PyErr_Occurred())
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	169 return -1;
55121 1fc37fecaf8f Issues #1530559, #1741130: Fix various inconsistencies in struct.pack Mark Dickinson <dickinsm@gmail.com> parents: 54412 diff changeset	170 *p = x;
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	171 return 0;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	172 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	173
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	174 #ifdef HAVE_LONG_LONG
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	175
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	176 /* Same, but handling native long long. */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	177
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	178 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	179 get_longlong(PyObject v, PY_LONG_LONG p)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	180 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	181 PY_LONG_LONG x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	182
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	183 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	184 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	185 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	186 assert(PyLong_Check(v));
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	187 x = PyLong_AsLongLong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	188 Py_DECREF(v);
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	189 if (x == (PY_LONG_LONG)-1 && PyErr_Occurred())
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	190 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	191 *p = x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	192 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	193 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	194
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	195 /* Same, but handling native unsigned long long. */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	196
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	197 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	198 get_ulonglong(PyObject v, unsigned PY_LONG_LONG p)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	199 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	200 unsigned PY_LONG_LONG x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	201
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	202 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	203 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	204 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	205 assert(PyLong_Check(v));
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	206 x = PyLong_AsUnsignedLongLong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	207 Py_DECREF(v);
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	208 if (x == (unsigned PY_LONG_LONG)-1 && PyErr_Occurred())
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	209 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	210 *p = x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	211 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	212 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	213
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	214 #endif
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	215
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	216 /* Floating point helpers */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	217
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	218 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	219 unpack_float(const char p, / start of 4-byte string */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	220 int le) /* true for little-endian, false for big-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	221 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	222 double x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	223
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	224 x = _PyFloat_Unpack4((unsigned char *)p, le);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	225 if (x == -1.0 && PyErr_Occurred())
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	226 return NULL;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	227 return PyFloat_FromDouble(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	228 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	229
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	230 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	231 unpack_double(const char p, / start of 8-byte string */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	232 int le) /* true for little-endian, false for big-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	233 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	234 double x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	235
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	236 x = _PyFloat_Unpack8((unsigned char *)p, le);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	237 if (x == -1.0 && PyErr_Occurred())
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	238 return NULL;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	239 return PyFloat_FromDouble(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	240 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	241
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	242 /* Helper to format the range error exceptions */
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	243 static int
38484 f64b13a00f33 Silence a warning. Armin Rigo <arigo@tunes.org> parents: 38483 diff changeset	244 _range_error(const formatdef *f, int is_unsigned)
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	245 {
38529 a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	246 /* ulargest is the largest unsigned value with f->size bytes.
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	247 * Note that the simpler:
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	248 * ((size_t)1 << (f->size * 8)) - 1
38530 447a94b039de Repaired error in new comment. Tim Peters <tim.peters@gmail.com> parents: 38529 diff changeset	249 * doesn't work when f->size == sizeof(size_t) because C doesn't
447a94b039de Repaired error in new comment. Tim Peters <tim.peters@gmail.com> parents: 38529 diff changeset	250 * define what happens when a left shift count is >= the number of
447a94b039de Repaired error in new comment. Tim Peters <tim.peters@gmail.com> parents: 38529 diff changeset	251 * bits in the integer being shifted; e.g., on some boxes it doesn't
447a94b039de Repaired error in new comment. Tim Peters <tim.peters@gmail.com> parents: 38529 diff changeset	252 * shift at all when they're equal.
38529 a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	253 */
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	254 const size_t ulargest = (size_t)-1 >> ((SIZEOF_SIZE_T - f->size)*8);
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	255 assert(f->size >= 1 && f->size <= SIZEOF_SIZE_T);
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	256 if (is_unsigned)
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	257 PyErr_Format(StructError,
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	258 "'%c' format requires 0 <= number <= %zu",
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	259 f->format,
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	260 ulargest);
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	261 else {
a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	262 const Py_ssize_t largest = (Py_ssize_t)(ulargest >> 1);
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	263 PyErr_Format(StructError,
38520 1a56da86c11a Calculate smallest properly (it was off by one) and use proper ssize_t types for Win64 Neal Norwitz <nnorwitz@gmail.com> parents: 38515 diff changeset	264 "'%c' format requires %zd <= number <= %zd",
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	265 f->format,
38529 a7f2295a78ac _range_error(): Speed and simplify (there's no real need for Tim Peters <tim.peters@gmail.com> parents: 38528 diff changeset	266 ~ largest,
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	267 largest);
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	268 }
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	269 return -1;
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	270 }
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	271
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	272
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	273
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	274 /* A large number of small routines follow, with names of the form
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	275
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	276 [bln][up]_TYPE
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	277
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	278 [bln] distiguishes among big-endian, little-endian and native.
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	279 [pu] distiguishes between pack (to struct) and unpack (from struct).
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	280 TYPE is one of char, byte, ubyte, etc.
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	281 */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	282
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	283 /* Native mode routines. ****************************************************/
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	284 /* NOTE:
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	285 In all n[up]_<type> routines handling types larger than 1 byte, there is
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	286 no guarantee that the p pointer is properly aligned for each type,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	287 therefore memcpy is called. An intermediate variable is used to
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	288 compensate for big-endian architectures.
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	289 Normally both the intermediate variable and the memcpy call will be
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	290 skipped by C optimisation in little-endian architectures (gcc >= 2.91
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	291 does this). */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	292
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	293 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	294 nu_char(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	295 {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	296 return PyString_FromStringAndSize(p, 1);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	297 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	298
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	299 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	300 nu_byte(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	301 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	302 return PyInt_FromLong((long) (signed char )p);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	303 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	304
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	305 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	306 nu_ubyte(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	307 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	308 return PyInt_FromLong((long) (unsigned char )p);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	309 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	310
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	311 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	312 nu_short(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	313 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	314 short x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	315 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	316 return PyInt_FromLong((long)x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	317 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	318
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	319 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	320 nu_ushort(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	321 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	322 unsigned short x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	323 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	324 return PyInt_FromLong((long)x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	325 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	326
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	327 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	328 nu_int(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	329 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	330 int x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	331 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	332 return PyInt_FromLong((long)x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	333 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	334
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	335 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	336 nu_uint(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	337 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	338 unsigned int x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	339 memcpy((char *)&x, p, sizeof x);
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	340 #if (SIZEOF_LONG > SIZEOF_INT)
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	341 return PyInt_FromLong((long)x);
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	342 #else
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	343 if (x <= ((unsigned int)LONG_MAX))
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	344 return PyInt_FromLong((long)x);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	345 return PyLong_FromUnsignedLong((unsigned long)x);
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	346 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	347 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	348
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	349 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	350 nu_long(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	351 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	352 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	353 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	354 return PyInt_FromLong(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	355 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	356
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	357 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	358 nu_ulong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	359 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	360 unsigned long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	361 memcpy((char *)&x, p, sizeof x);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	362 if (x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	363 return PyInt_FromLong((long)x);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	364 return PyLong_FromUnsignedLong(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	365 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	366
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	367 /* Native mode doesn't support q or Q unless the platform C supports
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	368 long long (or, on Windows, __int64). */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	369
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	370 #ifdef HAVE_LONG_LONG
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	371
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	372 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	373 nu_longlong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	374 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	375 PY_LONG_LONG x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	376 memcpy((char *)&x, p, sizeof x);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	377 if (x >= LONG_MIN && x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	378 return PyInt_FromLong(Py_SAFE_DOWNCAST(x, PY_LONG_LONG, long));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	379 return PyLong_FromLongLong(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	380 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	381
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	382 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	383 nu_ulonglong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	384 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	385 unsigned PY_LONG_LONG x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	386 memcpy((char *)&x, p, sizeof x);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	387 if (x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	388 return PyInt_FromLong(Py_SAFE_DOWNCAST(x, unsigned PY_LONG_LONG, long));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	389 return PyLong_FromUnsignedLongLong(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	390 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	391
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	392 #endif
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	393
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	394 static PyObject *
40681 0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	395 nu_bool(const char p, const formatdef f)
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	396 {
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	397 BOOL_TYPE x;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	398 memcpy((char *)&x, p, sizeof x);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	399 return PyBool_FromLong(x != 0);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	400 }
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	401
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	402
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	403 static PyObject *
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	404 nu_float(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	405 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	406 float x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	407 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	408 return PyFloat_FromDouble((double)x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	409 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	410
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	411 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	412 nu_double(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	413 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	414 double x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	415 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	416 return PyFloat_FromDouble(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	417 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	418
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	419 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	420 nu_void_p(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	421 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	422 void *x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	423 memcpy((char *)&x, p, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	424 return PyLong_FromVoidPtr(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	425 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	426
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	427 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	428 np_byte(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	429 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	430 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	431 if (get_long(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	432 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	433 if (x < -128 \|\| x > 127){
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	434 PyErr_SetString(StructError,
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	435 "byte format requires -128 <= number <= 127");
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	436 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	437 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	438 *p = (char)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	439 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	440 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	441
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	442 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	443 np_ubyte(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	444 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	445 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	446 if (get_long(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	447 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	448 if (x < 0 \|\| x > 255){
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	449 PyErr_SetString(StructError,
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	450 "ubyte format requires 0 <= number <= 255");
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	451 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	452 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	453 *p = (char)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	454 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	455 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	456
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	457 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	458 np_char(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	459 {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	460 if (!PyString_Check(v) \|\| PyString_Size(v) != 1) {
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	461 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	462 "char format require string of length 1");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	463 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	464 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	465 p = PyString_AsString(v);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	466 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	467 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	468
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	469 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	470 np_short(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	471 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	472 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	473 short y;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	474 if (get_long(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	475 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	476 if (x < SHRT_MIN \|\| x > SHRT_MAX){
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	477 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	478 "short format requires " STRINGIFY(SHRT_MIN)
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	479 " <= number <= " STRINGIFY(SHRT_MAX));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	480 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	481 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	482 y = (short)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	483 memcpy(p, (char *)&y, sizeof y);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	484 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	485 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	486
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	487 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	488 np_ushort(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	489 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	490 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	491 unsigned short y;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	492 if (get_long(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	493 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	494 if (x < 0 \|\| x > USHRT_MAX){
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	495 PyErr_SetString(StructError,
55142 880b50bca1b1 Typo in error message Mark Dickinson <dickinsm@gmail.com> parents: 55121 diff changeset	496 "ushort format requires 0 <= number <= " STRINGIFY(USHRT_MAX));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	497 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	498 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	499 y = (unsigned short)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	500 memcpy(p, (char *)&y, sizeof y);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	501 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	502 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	503
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	504 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	505 np_int(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	506 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	507 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	508 int y;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	509 if (get_long(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	510 return -1;
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	511 #if (SIZEOF_LONG > SIZEOF_INT)
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	512 if ((x < ((long)INT_MIN)) \|\| (x > ((long)INT_MAX)))
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	513 return _range_error(f, 0);
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	514 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	515 y = (int)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	516 memcpy(p, (char *)&y, sizeof y);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	517 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	518 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	519
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	520 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	521 np_uint(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	522 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	523 unsigned long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	524 unsigned int y;
56246 3dec3b77b787 Eliminate unnecessary get_wrapped_(u)long defines in struct module. Mark Dickinson <dickinsm@gmail.com> parents: 55153 diff changeset	525 if (get_ulong(v, &x) < 0)
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49351 diff changeset	526 return -1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	527 y = (unsigned int)x;
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	528 #if (SIZEOF_LONG > SIZEOF_INT)
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	529 if (x > ((unsigned long)UINT_MAX))
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	530 return _range_error(f, 1);
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	531 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	532 memcpy(p, (char *)&y, sizeof y);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	533 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	534 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	535
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	536 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	537 np_long(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	538 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	539 long x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	540 if (get_long(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	541 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	542 memcpy(p, (char *)&x, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	543 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	544 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	545
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	546 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	547 np_ulong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	548 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	549 unsigned long x;
56246 3dec3b77b787 Eliminate unnecessary get_wrapped_(u)long defines in struct module. Mark Dickinson <dickinsm@gmail.com> parents: 55153 diff changeset	550 if (get_ulong(v, &x) < 0)
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49351 diff changeset	551 return -1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	552 memcpy(p, (char *)&x, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	553 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	554 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	555
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	556 #ifdef HAVE_LONG_LONG
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	557
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	558 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	559 np_longlong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	560 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	561 PY_LONG_LONG x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	562 if (get_longlong(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	563 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	564 memcpy(p, (char *)&x, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	565 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	566 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	567
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	568 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	569 np_ulonglong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	570 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	571 unsigned PY_LONG_LONG x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	572 if (get_ulonglong(v, &x) < 0)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	573 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	574 memcpy(p, (char *)&x, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	575 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	576 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	577 #endif
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	578
40681 0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	579
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	580 static int
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	581 np_bool(char p, PyObject v, const formatdef *f)
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	582 {
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	583 BOOL_TYPE y;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	584 y = PyObject_IsTrue(v);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	585 memcpy(p, (char *)&y, sizeof y);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	586 return 0;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	587 }
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	588
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	589 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	590 np_float(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	591 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	592 float x = (float)PyFloat_AsDouble(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	593 if (x == -1 && PyErr_Occurred()) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	594 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	595 "required argument is not a float");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	596 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	597 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	598 memcpy(p, (char *)&x, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	599 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	600 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	601
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	602 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	603 np_double(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	604 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	605 double x = PyFloat_AsDouble(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	606 if (x == -1 && PyErr_Occurred()) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	607 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	608 "required argument is not a float");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	609 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	610 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	611 memcpy(p, (char *)&x, sizeof(double));
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	612 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	613 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	614
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	615 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	616 np_void_p(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	617 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	618 void *x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	619
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	620 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	621 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	622 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	623 assert(PyLong_Check(v));
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	624 x = PyLong_AsVoidPtr(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	625 Py_DECREF(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	626 if (x == NULL && PyErr_Occurred())
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	627 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	628 memcpy(p, (char *)&x, sizeof x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	629 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	630 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	631
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	632 static formatdef native_table[] = {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	633 {'x', sizeof(char), 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	634 {'b', sizeof(char), 0, nu_byte, np_byte},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	635 {'B', sizeof(char), 0, nu_ubyte, np_ubyte},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	636 {'c', sizeof(char), 0, nu_char, np_char},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	637 {'s', sizeof(char), 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	638 {'p', sizeof(char), 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	639 {'h', sizeof(short), SHORT_ALIGN, nu_short, np_short},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	640 {'H', sizeof(short), SHORT_ALIGN, nu_ushort, np_ushort},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	641 {'i', sizeof(int), INT_ALIGN, nu_int, np_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	642 {'I', sizeof(int), INT_ALIGN, nu_uint, np_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	643 {'l', sizeof(long), LONG_ALIGN, nu_long, np_long},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	644 {'L', sizeof(long), LONG_ALIGN, nu_ulong, np_ulong},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	645 #ifdef HAVE_LONG_LONG
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	646 {'q', sizeof(PY_LONG_LONG), LONG_LONG_ALIGN, nu_longlong, np_longlong},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	647 {'Q', sizeof(PY_LONG_LONG), LONG_LONG_ALIGN, nu_ulonglong,np_ulonglong},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	648 #endif
45672 d41a4206405c Issue 1872: Changed the struct module typecode from 't' to '?', for Thomas Heller <theller@ctypes.org> parents: 45373 diff changeset	649 {'?', sizeof(BOOL_TYPE), BOOL_ALIGN, nu_bool, np_bool},
38317 68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	650 {'f', sizeof(float), FLOAT_ALIGN, nu_float, np_float},
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	651 {'d', sizeof(double), DOUBLE_ALIGN, nu_double, np_double},
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	652 {'P', sizeof(void *), VOID_P_ALIGN, nu_void_p, np_void_p},
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	653 {0}
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	654 };
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	655
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	656 /* Big-endian routines. *****************************************************/
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	657
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	658 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	659 bu_int(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	660 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	661 long x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	662 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	663 const unsigned char bytes = (const unsigned char )p;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	664 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	665 x = (x<<8) \| *bytes++;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	666 } while (--i > 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	667 /* Extend the sign bit. */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	668 if (SIZEOF_LONG > f->size)
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	669 x \|= -(x & (1L << ((8 * f->size) - 1)));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	670 return PyInt_FromLong(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	671 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	672
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	673 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	674 bu_uint(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	675 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	676 unsigned long x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	677 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	678 const unsigned char bytes = (const unsigned char )p;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	679 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	680 x = (x<<8) \| *bytes++;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	681 } while (--i > 0);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	682 if (x <= LONG_MAX)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	683 return PyInt_FromLong((long)x);
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	684 return PyLong_FromUnsignedLong(x);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	685 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	686
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	687 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	688 bu_longlong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	689 {
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	690 #ifdef HAVE_LONG_LONG
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	691 PY_LONG_LONG x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	692 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	693 const unsigned char bytes = (const unsigned char )p;
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	694 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	695 x = (x<<8) \| *bytes++;
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	696 } while (--i > 0);
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	697 /* Extend the sign bit. */
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	698 if (SIZEOF_LONG_LONG > f->size)
41526 708c8c5fc173 Make pythoncore compile cleanly with VisualStudio 2005. Used an explicit typecast to get a 64 bit integer, and undefined the Yield macro that conflicts with winbase.h Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 41391 diff changeset	699 x \|= -(x & ((PY_LONG_LONG)1 << ((8 * f->size) - 1)));
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	700 if (x >= LONG_MIN && x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	701 return PyInt_FromLong(Py_SAFE_DOWNCAST(x, PY_LONG_LONG, long));
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	702 return PyLong_FromLongLong(x);
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	703 #else
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	704 return _PyLong_FromByteArray((const unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	705 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	706 0, /* little-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	707 1 /* signed */);
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	708 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	709 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	710
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	711 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	712 bu_ulonglong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	713 {
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	714 #ifdef HAVE_LONG_LONG
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	715 unsigned PY_LONG_LONG x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	716 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	717 const unsigned char bytes = (const unsigned char )p;
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	718 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	719 x = (x<<8) \| *bytes++;
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	720 } while (--i > 0);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	721 if (x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	722 return PyInt_FromLong(Py_SAFE_DOWNCAST(x, unsigned PY_LONG_LONG, long));
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	723 return PyLong_FromUnsignedLongLong(x);
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	724 #else
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	725 return _PyLong_FromByteArray((const unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	726 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	727 0, /* little-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	728 0 /* signed */);
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	729 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	730 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	731
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	732 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	733 bu_float(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	734 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	735 return unpack_float(p, 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	736 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	737
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	738 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	739 bu_double(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	740 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	741 return unpack_double(p, 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	742 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	743
40681 0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	744 static PyObject *
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	745 bu_bool(const char p, const formatdef f)
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	746 {
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	747 char x;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	748 memcpy((char *)&x, p, sizeof x);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	749 return PyBool_FromLong(x != 0);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	750 }
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	751
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	752 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	753 bp_int(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	754 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	755 long x;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	756 Py_ssize_t i;
56246 3dec3b77b787 Eliminate unnecessary get_wrapped_(u)long defines in struct module. Mark Dickinson <dickinsm@gmail.com> parents: 55153 diff changeset	757 if (get_long(v, &x) < 0)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	758 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	759 i = f->size;
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	760 if (i != SIZEOF_LONG) {
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	761 if ((i == 2) && (x < -32768 \|\| x > 32767))
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	762 return _range_error(f, 0);
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	763 #if (SIZEOF_LONG != 4)
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	764 else if ((i == 4) && (x < -2147483648L \|\| x > 2147483647L))
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	765 return _range_error(f, 0);
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	766 #endif
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	767 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	768 do {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	769 p[--i] = (char)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	770 x >>= 8;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	771 } while (i > 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	772 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	773 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	774
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	775 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	776 bp_uint(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	777 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	778 unsigned long x;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	779 Py_ssize_t i;
56246 3dec3b77b787 Eliminate unnecessary get_wrapped_(u)long defines in struct module. Mark Dickinson <dickinsm@gmail.com> parents: 55153 diff changeset	780 if (get_ulong(v, &x) < 0)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	781 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	782 i = f->size;
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	783 if (i != SIZEOF_LONG) {
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	784 unsigned long maxint = 1;
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	785 maxint <<= (unsigned long)(i * 8);
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	786 if (x >= maxint)
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	787 return _range_error(f, 1);
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	788 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	789 do {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	790 p[--i] = (char)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	791 x >>= 8;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	792 } while (i > 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	793 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	794 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	795
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	796 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	797 bp_longlong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	798 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	799 int res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	800 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	801 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	802 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	803 res = _PyLong_AsByteArray((PyLongObject *)v,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	804 (unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	805 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	806 0, /* little_endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	807 1 /* signed */);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	808 Py_DECREF(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	809 return res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	810 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	811
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	812 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	813 bp_ulonglong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	814 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	815 int res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	816 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	817 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	818 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	819 res = _PyLong_AsByteArray((PyLongObject *)v,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	820 (unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	821 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	822 0, /* little_endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	823 0 /* signed */);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	824 Py_DECREF(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	825 return res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	826 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	827
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	828 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	829 bp_float(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	830 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	831 double x = PyFloat_AsDouble(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	832 if (x == -1 && PyErr_Occurred()) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	833 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	834 "required argument is not a float");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	835 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	836 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	837 return _PyFloat_Pack4(x, (unsigned char *)p, 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	838 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	839
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	840 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	841 bp_double(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	842 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	843 double x = PyFloat_AsDouble(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	844 if (x == -1 && PyErr_Occurred()) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	845 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	846 "required argument is not a float");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	847 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	848 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	849 return _PyFloat_Pack8(x, (unsigned char *)p, 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	850 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	851
40681 0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	852 static int
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	853 bp_bool(char p, PyObject v, const formatdef *f)
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	854 {
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	855 char y;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	856 y = PyObject_IsTrue(v);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	857 memcpy(p, (char *)&y, sizeof y);
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	858 return 0;
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	859 }
0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	860
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	861 static formatdef bigendian_table[] = {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	862 {'x', 1, 0, NULL},
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	863 {'b', 1, 0, nu_byte, np_byte},
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	864 {'B', 1, 0, nu_ubyte, np_ubyte},
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	865 {'c', 1, 0, nu_char, np_char},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	866 {'s', 1, 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	867 {'p', 1, 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	868 {'h', 2, 0, bu_int, bp_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	869 {'H', 2, 0, bu_uint, bp_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	870 {'i', 4, 0, bu_int, bp_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	871 {'I', 4, 0, bu_uint, bp_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	872 {'l', 4, 0, bu_int, bp_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	873 {'L', 4, 0, bu_uint, bp_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	874 {'q', 8, 0, bu_longlong, bp_longlong},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	875 {'Q', 8, 0, bu_ulonglong, bp_ulonglong},
45672 d41a4206405c Issue 1872: Changed the struct module typecode from 't' to '?', for Thomas Heller <theller@ctypes.org> parents: 45373 diff changeset	876 {'?', 1, 0, bu_bool, bp_bool},
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	877 {'f', 4, 0, bu_float, bp_float},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	878 {'d', 8, 0, bu_double, bp_double},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	879 {0}
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	880 };
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	881
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	882 /* Little-endian routines. *****************************************************/
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	883
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	884 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	885 lu_int(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	886 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	887 long x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	888 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	889 const unsigned char bytes = (const unsigned char )p;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	890 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	891 x = (x<<8) \| bytes[--i];
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	892 } while (i > 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	893 /* Extend the sign bit. */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	894 if (SIZEOF_LONG > f->size)
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	895 x \|= -(x & (1L << ((8 * f->size) - 1)));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	896 return PyInt_FromLong(x);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	897 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	898
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	899 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	900 lu_uint(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	901 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	902 unsigned long x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	903 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	904 const unsigned char bytes = (const unsigned char )p;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	905 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	906 x = (x<<8) \| bytes[--i];
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	907 } while (i > 0);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	908 if (x <= LONG_MAX)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	909 return PyInt_FromLong((long)x);
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	910 return PyLong_FromUnsignedLong((long)x);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	911 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	912
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	913 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	914 lu_longlong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	915 {
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	916 #ifdef HAVE_LONG_LONG
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	917 PY_LONG_LONG x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	918 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	919 const unsigned char bytes = (const unsigned char )p;
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	920 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	921 x = (x<<8) \| bytes[--i];
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	922 } while (i > 0);
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	923 /* Extend the sign bit. */
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	924 if (SIZEOF_LONG_LONG > f->size)
41526 708c8c5fc173 Make pythoncore compile cleanly with VisualStudio 2005. Used an explicit typecast to get a 64 bit integer, and undefined the Yield macro that conflicts with winbase.h Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 41391 diff changeset	925 x \|= -(x & ((PY_LONG_LONG)1 << ((8 * f->size) - 1)));
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	926 if (x >= LONG_MIN && x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	927 return PyInt_FromLong(Py_SAFE_DOWNCAST(x, PY_LONG_LONG, long));
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	928 return PyLong_FromLongLong(x);
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	929 #else
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	930 return _PyLong_FromByteArray((const unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	931 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	932 1, /* little-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	933 1 /* signed */);
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	934 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	935 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	936
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	937 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	938 lu_ulonglong(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	939 {
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	940 #ifdef HAVE_LONG_LONG
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	941 unsigned PY_LONG_LONG x = 0;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	942 Py_ssize_t i = f->size;
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	943 const unsigned char bytes = (const unsigned char )p;
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	944 do {
38483 fb56a3992604 simplify the struct code a bit (no functional changes) Bob Ippolito <bob@redivi.com> parents: 38470 diff changeset	945 x = (x<<8) \| bytes[--i];
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	946 } while (i > 0);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	947 if (x <= LONG_MAX)
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	948 return PyInt_FromLong(Py_SAFE_DOWNCAST(x, unsigned PY_LONG_LONG, long));
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	949 return PyLong_FromUnsignedLongLong(x);
850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	950 #else
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	951 return _PyLong_FromByteArray((const unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	952 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	953 1, /* little-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	954 0 /* signed */);
38310 850d4f7717b8 Struct now unpacks to PY_LONG_LONG directly when possible, also include #ifdef'ed out code that will return int instead of long when in bounds (not active since it's an API and doc change) Bob Ippolito <bob@redivi.com> parents: 38277 diff changeset	955 #endif
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	956 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	957
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	958 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	959 lu_float(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	960 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	961 return unpack_float(p, 1);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	962 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	963
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	964 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	965 lu_double(const char p, const formatdef f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	966 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	967 return unpack_double(p, 1);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	968 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	969
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	970 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	971 lp_int(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	972 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	973 long x;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	974 Py_ssize_t i;
56246 3dec3b77b787 Eliminate unnecessary get_wrapped_(u)long defines in struct module. Mark Dickinson <dickinsm@gmail.com> parents: 55153 diff changeset	975 if (get_long(v, &x) < 0)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	976 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	977 i = f->size;
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	978 if (i != SIZEOF_LONG) {
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	979 if ((i == 2) && (x < -32768 \|\| x > 32767))
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	980 return _range_error(f, 0);
38429 003433511e4d Remove the range checking and int usage #defines from _struct and strip out the now-dead code Bob Ippolito <bob@redivi.com> parents: 38411 diff changeset	981 #if (SIZEOF_LONG != 4)
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	982 else if ((i == 4) && (x < -2147483648L \|\| x > 2147483647L))
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	983 return _range_error(f, 0);
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	984 #endif
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	985 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	986 do {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	987 *p++ = (char)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	988 x >>= 8;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	989 } while (--i > 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	990 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	991 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	992
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	993 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	994 lp_uint(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	995 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	996 unsigned long x;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	997 Py_ssize_t i;
56246 3dec3b77b787 Eliminate unnecessary get_wrapped_(u)long defines in struct module. Mark Dickinson <dickinsm@gmail.com> parents: 55153 diff changeset	998 if (get_ulong(v, &x) < 0)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	999 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1000 i = f->size;
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	1001 if (i != SIZEOF_LONG) {
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	1002 unsigned long maxint = 1;
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	1003 maxint <<= (unsigned long)(i * 8);
8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	1004 if (x >= maxint)
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1005 return _range_error(f, 1);
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	1006 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1007 do {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1008 *p++ = (char)x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1009 x >>= 8;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1010 } while (--i > 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1011 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1012 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1013
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1014 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1015 lp_longlong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1016 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1017 int res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1018 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1019 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1020 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1021 res = _PyLong_AsByteArray((PyLongObject*)v,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1022 (unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1023 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1024 1, /* little_endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1025 1 /* signed */);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1026 Py_DECREF(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1027 return res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1028 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1029
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1030 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1031 lp_ulonglong(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1032 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1033 int res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1034 v = get_pylong(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1035 if (v == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1036 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1037 res = _PyLong_AsByteArray((PyLongObject*)v,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1038 (unsigned char *)p,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1039 8,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1040 1, /* little_endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1041 0 /* signed */);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1042 Py_DECREF(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1043 return res;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1044 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1045
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1046 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1047 lp_float(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1048 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1049 double x = PyFloat_AsDouble(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1050 if (x == -1 && PyErr_Occurred()) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1051 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1052 "required argument is not a float");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1053 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1054 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1055 return _PyFloat_Pack4(x, (unsigned char *)p, 1);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1056 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1057
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1058 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1059 lp_double(char p, PyObject v, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1060 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1061 double x = PyFloat_AsDouble(v);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1062 if (x == -1 && PyErr_Occurred()) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1063 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1064 "required argument is not a float");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1065 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1066 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1067 return _PyFloat_Pack8(x, (unsigned char *)p, 1);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1068 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1069
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1070 static formatdef lilendian_table[] = {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1071 {'x', 1, 0, NULL},
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	1072 {'b', 1, 0, nu_byte, np_byte},
5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38353 diff changeset	1073 {'B', 1, 0, nu_ubyte, np_ubyte},
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1074 {'c', 1, 0, nu_char, np_char},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1075 {'s', 1, 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1076 {'p', 1, 0, NULL},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1077 {'h', 2, 0, lu_int, lp_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1078 {'H', 2, 0, lu_uint, lp_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1079 {'i', 4, 0, lu_int, lp_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1080 {'I', 4, 0, lu_uint, lp_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1081 {'l', 4, 0, lu_int, lp_int},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1082 {'L', 4, 0, lu_uint, lp_uint},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1083 {'q', 8, 0, lu_longlong, lp_longlong},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1084 {'Q', 8, 0, lu_ulonglong, lp_ulonglong},
45672 d41a4206405c Issue 1872: Changed the struct module typecode from 't' to '?', for Thomas Heller <theller@ctypes.org> parents: 45373 diff changeset	1085 {'?', 1, 0, bu_bool, bp_bool}, /* Std rep not endian dep,
40681 0bffca64ccc4 Patch #1610575: Add support for _Bool to struct. Martin v. Löwis <martin@v.loewis.de> parents: 39380 diff changeset	1086 but potentially different from native rep -- reuse bx_bool funcs. */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1087 {'f', 4, 0, lu_float, lp_float},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1088 {'d', 8, 0, lu_double, lp_double},
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1089 {0}
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1090 };
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1091
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1092
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1093 static const formatdef *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1094 whichtable(char **pfmt)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1095 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1096 const char fmt = (pfmt)++; /* May be backed out of later */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1097 switch (*fmt) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1098 case '<':
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1099 return lilendian_table;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1100 case '>':
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1101 case '!': /* Network byte order is big-endian */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1102 return bigendian_table;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1103 case '=': { /* Host byte order -- different from native in aligment! */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1104 int n = 1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1105 char p = (char ) &n;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1106 if (*p == 1)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1107 return lilendian_table;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1108 else
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1109 return bigendian_table;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1110 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1111 default:
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1112 --pfmt; / Back out of pointer increment */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1113 /* Fall through */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1114 case '@':
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1115 return native_table;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1116 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1117 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1118
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1119
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1120 /* Get the table entry for a format code */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1121
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1122 static const formatdef *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1123 getentry(int c, const formatdef *f)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1124 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1125 for (; f->format != '\0'; f++) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1126 if (f->format == c) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1127 return f;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1128 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1129 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1130 PyErr_SetString(StructError, "bad char in struct format");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1131 return NULL;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1132 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1133
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1134
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1135 /* Align a size according to a format code */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1136
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1137 static int
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1138 align(Py_ssize_t size, char c, const formatdef *e)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1139 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1140 if (e->format == c) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1141 if (e->alignment) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1142 size = ((size + e->alignment - 1)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1143 / e->alignment)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1144 * e->alignment;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1145 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1146 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1147 return size;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1148 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1149
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1150
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1151 /* calculate the size of a format string */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1152
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1153 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1154 prepare_s(PyStructObject *self)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1155 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1156 const formatdef *f;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1157 const formatdef *e;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1158 formatcode *codes;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1159
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1160 const char *s;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1161 const char *fmt;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1162 char c;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1163 Py_ssize_t size, len, num, itemsize, x;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1164
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1165 fmt = PyString_AS_STRING(self->s_format);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1166
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1167 f = whichtable((char **)&fmt);
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1168
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1169 s = fmt;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1170 size = 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1171 len = 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1172 while ((c = *s++) != '\0') {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1173 if (isspace(Py_CHARMASK(c)))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1174 continue;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1175 if ('0' <= c && c <= '9') {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1176 num = c - '0';
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1177 while ('0' <= (c = *s++) && c <= '9') {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1178 x = num*10 + (c - '0');
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1179 if (x/10 != num) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1180 PyErr_SetString(
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1181 StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1182 "overflow in item count");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1183 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1184 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1185 num = x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1186 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1187 if (c == '\0')
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1188 break;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1189 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1190 else
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1191 num = 1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1192
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1193 e = getentry(c, f);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1194 if (e == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1195 return -1;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1196
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1197 switch (c) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1198 case 's': /* fall through */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1199 case 'p': len++; break;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1200 case 'x': break;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1201 default: len += num; break;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1202 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1203
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1204 itemsize = e->size;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1205 size = align(size, c, e);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1206 x = num * itemsize;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1207 size += x;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1208 if (x/itemsize != num \|\| size < 0) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1209 PyErr_SetString(StructError,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1210 "total struct size too long");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1211 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1212 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1213 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1214
47587 1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	1215 /* check for overflow */
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	1216 if ((len + 1) > (PY_SSIZE_T_MAX / sizeof(formatcode))) {
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	1217 PyErr_NoMemory();
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	1218 return -1;
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	1219 }
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47527 diff changeset	1220
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1221 self->s_size = size;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1222 self->s_len = len;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1223 codes = PyMem_MALLOC((len + 1) * sizeof(formatcode));
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1224 if (codes == NULL) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1225 PyErr_NoMemory();
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1226 return -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1227 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1228 self->s_codes = codes;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1229
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1230 s = fmt;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1231 size = 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1232 while ((c = *s++) != '\0') {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1233 if (isspace(Py_CHARMASK(c)))
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1234 continue;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1235 if ('0' <= c && c <= '9') {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1236 num = c - '0';
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1237 while ('0' <= (c = *s++) && c <= '9')
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1238 num = num*10 + (c - '0');
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1239 if (c == '\0')
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1240 break;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1241 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1242 else
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1243 num = 1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1244
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1245 e = getentry(c, f);
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1246
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1247 size = align(size, c, e);
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1248 if (c == 's' \|\| c == 'p') {
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1249 codes->offset = size;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1250 codes->size = num;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1251 codes->fmtdef = e;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1252 codes++;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1253 size += num;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1254 } else if (c == 'x') {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1255 size += num;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1256 } else {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1257 while (--num >= 0) {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1258 codes->offset = size;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1259 codes->size = e->size;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1260 codes->fmtdef = e;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1261 codes++;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1262 size += e->size;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1263 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1264 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1265 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1266 codes->fmtdef = NULL;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1267 codes->offset = size;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1268 codes->size = 0;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1269
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1270 return 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1271 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1272
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1273 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1274 s_new(PyTypeObject type, PyObject args, PyObject *kwds)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1275 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1276 PyObject *self;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1277
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1278 assert(type != NULL && type->tp_alloc != NULL);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1279
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1280 self = type->tp_alloc(type, 0);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1281 if (self != NULL) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1282 PyStructObject s = (PyStructObject)self;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1283 Py_INCREF(Py_None);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1284 s->s_format = Py_None;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1285 s->s_codes = NULL;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1286 s->s_size = -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1287 s->s_len = -1;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1288 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1289 return self;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1290 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1291
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1292 static int
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1293 s_init(PyObject self, PyObject args, PyObject *kwds)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1294 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1295 PyStructObject soself = (PyStructObject )self;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1296 PyObject *o_format = NULL;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1297 int ret = 0;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1298 static char *kwlist[] = {"format", 0};
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1299
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1300 assert(PyStruct_Check(self));
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1301
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1302 if (!PyArg_ParseTupleAndKeywords(args, kwds, "S:Struct", kwlist,
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1303 &o_format))
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1304 return -1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1305
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1306 Py_INCREF(o_format);
45373 f378edd21df2 Crashers of the day: Py_CLEAR must be used when there is a chance that the Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44733 diff changeset	1307 Py_CLEAR(soself->s_format);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1308 soself->s_format = o_format;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1309
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1310 ret = prepare_s(soself);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1311 return ret;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1312 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1313
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1314 static void
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1315 s_dealloc(PyStructObject *s)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1316 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1317 if (s->weakreflist != NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1318 PyObject_ClearWeakRefs((PyObject *)s);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1319 if (s->s_codes != NULL) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1320 PyMem_FREE(s->s_codes);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1321 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1322 Py_XDECREF(s->s_format);
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	1323 Py_TYPE(s)->tp_free((PyObject *)s);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1324 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1325
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1326 static PyObject *
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1327 s_unpack_internal(PyStructObject soself, char startfrom) {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1328 formatcode *code;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1329 Py_ssize_t i = 0;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1330 PyObject *result = PyTuple_New(soself->s_len);
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1331 if (result == NULL)
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1332 return NULL;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1333
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1334 for (code = soself->s_codes; code->fmtdef != NULL; code++) {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1335 PyObject *v;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1336 const formatdef *e = code->fmtdef;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1337 const char *res = startfrom + code->offset;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1338 if (e->format == 's') {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1339 v = PyString_FromStringAndSize(res, code->size);
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1340 } else if (e->format == 'p') {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1341 Py_ssize_t n = (unsigned char)res;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1342 if (n >= code->size)
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1343 n = code->size - 1;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1344 v = PyString_FromStringAndSize(res + 1, n);
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1345 } else {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1346 v = e->unpack(res, e);
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1347 }
38736 e80097bf73b6 Wrap some long lines Neal Norwitz <nnorwitz@gmail.com> parents: 38583 diff changeset	1348 if (v == NULL)
e80097bf73b6 Wrap some long lines Neal Norwitz <nnorwitz@gmail.com> parents: 38583 diff changeset	1349 goto fail;
e80097bf73b6 Wrap some long lines Neal Norwitz <nnorwitz@gmail.com> parents: 38583 diff changeset	1350 PyTuple_SET_ITEM(result, i++, v);
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1351 }
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1352
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1353 return result;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1354 fail:
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1355 Py_DECREF(result);
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1356 return NULL;
38445 8daeb9af8422 fix struct regression on 64-bit platforms Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	1357 }
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1358
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1359
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1360 PyDoc_STRVAR(s_unpack__doc__,
38430 795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1361 "S.unpack(str) -> (v1, v2, ...)\n\
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1362 \n\
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1363 Return tuple containing values unpacked according to this Struct's format.\n\
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1364 Requires len(str) == self.size. See struct.__doc__ for more on format\n\
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1365 strings.");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1366
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1367 static PyObject *
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1368 s_unpack(PyObject self, PyObject inputstr)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1369 {
41391 80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1370 char *start;
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1371 Py_ssize_t len;
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1372 PyObject args=NULL, result;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1373 PyStructObject soself = (PyStructObject )self;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1374 assert(PyStruct_Check(self));
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1375 assert(soself->s_codes != NULL);
41391 80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1376 if (inputstr == NULL)
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1377 goto fail;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1378 if (PyString_Check(inputstr) &&
52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1379 PyString_GET_SIZE(inputstr) == soself->s_size) {
52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1380 return s_unpack_internal(soself, PyString_AS_STRING(inputstr));
41391 80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1381 }
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1382 args = PyTuple_Pack(1, inputstr);
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1383 if (args == NULL)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1384 return NULL;
41391 80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1385 if (!PyArg_ParseTuple(args, "s#:unpack", &start, &len))
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1386 goto fail;
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1387 if (soself->s_size != len)
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1388 goto fail;
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1389 result = s_unpack_internal(soself, start);
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1390 Py_DECREF(args);
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1391 return result;
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1392
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1393 fail:
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1394 Py_XDECREF(args);
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1395 PyErr_Format(StructError,
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1396 "unpack requires a string argument of length %zd",
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1397 soself->s_size);
80ff75fa2754 Bug #1563759: struct.unpack doens't support buffer protocol objects Raymond Hettinger <python@rcn.com> parents: 40681 diff changeset	1398 return NULL;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1399 }
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1400
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1401 PyDoc_STRVAR(s_unpack_from__doc__,
38430 795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1402 "S.unpack_from(buffer[, offset]) -> (v1, v2, ...)\n\
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1403 \n\
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1404 Return tuple containing values unpacked according to this Struct's format.\n\
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1405 Unlike unpack, unpack_from can unpack values from any object supporting\n\
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1406 the buffer API, not just str. Requires len(buffer[offset:]) >= self.size.\n\
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1407 See struct.__doc__ for more on format strings.");
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1408
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1409 static PyObject *
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1410 s_unpack_from(PyObject self, PyObject args, PyObject *kwds)
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1411 {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1412 static char *kwlist[] = {"buffer", "offset", 0};
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1413 #if (PY_VERSION_HEX < 0x02050000)
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1414 static char *fmt = "z#\|i:unpack_from";
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1415 #else
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1416 static char *fmt = "z#\|n:unpack_from";
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1417 #endif
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1418 Py_ssize_t buffer_len = 0, offset = 0;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1419 char *buffer = NULL;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1420 PyStructObject soself = (PyStructObject )self;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1421 assert(PyStruct_Check(self));
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1422 assert(soself->s_codes != NULL);
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1423
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1424 if (!PyArg_ParseTupleAndKeywords(args, kwds, fmt, kwlist,
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1425 &buffer, &buffer_len, &offset))
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1426 return NULL;
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1427
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1428 if (buffer == NULL) {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1429 PyErr_Format(StructError,
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1430 "unpack_from requires a buffer argument");
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1431 return NULL;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1432 }
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1433
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1434 if (offset < 0)
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1435 offset += buffer_len;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1436
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1437 if (offset < 0 \|\| (buffer_len - offset) < soself->s_size) {
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1438 PyErr_Format(StructError,
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1439 "unpack_from requires a buffer of at least %zd bytes",
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1440 soself->s_size);
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1441 return NULL;
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1442 }
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1443 return s_unpack_internal(soself, buffer + offset);
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1444 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1445
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1446
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1447 /*
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1448 * Guts of the pack function.
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1449 *
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1450 * Takes a struct object, a tuple of arguments, and offset in that tuple of
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1451 * argument for where to start processing the arguments for packing, and a
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1452 * character buffer for writing the packed string. The caller must insure
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1453 * that the buffer may contain the required length for packing the arguments.
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1454 * 0 is returned on success, 1 is returned if there is an error.
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1455 *
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1456 */
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1457 static int
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1458 s_pack_internal(PyStructObject soself, PyObject args, int offset, char* buf)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1459 {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1460 formatcode *code;
38736 e80097bf73b6 Wrap some long lines Neal Norwitz <nnorwitz@gmail.com> parents: 38583 diff changeset	1461 /* XXX(nnorwitz): why does i need to be a local? can we use
e80097bf73b6 Wrap some long lines Neal Norwitz <nnorwitz@gmail.com> parents: 38583 diff changeset	1462 the offset parameter or do we need the wider width? */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1463 Py_ssize_t i;
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1464
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1465 memset(buf, '\0', soself->s_size);
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1466 i = offset;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1467 for (code = soself->s_codes; code->fmtdef != NULL; code++) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1468 Py_ssize_t n;
38736 e80097bf73b6 Wrap some long lines Neal Norwitz <nnorwitz@gmail.com> parents: 38583 diff changeset	1469 PyObject *v = PyTuple_GET_ITEM(args, i++);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1470 const formatdef *e = code->fmtdef;
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1471 char *res = buf + code->offset;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1472 if (e->format == 's') {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1473 if (!PyString_Check(v)) {
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1474 PyErr_SetString(StructError,
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1475 "argument for 's' must "
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1476 "be a string");
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1477 return -1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1478 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1479 n = PyString_GET_SIZE(v);
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1480 if (n > code->size)
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1481 n = code->size;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1482 if (n > 0)
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1483 memcpy(res, PyString_AS_STRING(v), n);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1484 } else if (e->format == 'p') {
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1485 if (!PyString_Check(v)) {
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1486 PyErr_SetString(StructError,
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1487 "argument for 'p' must "
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1488 "be a string");
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1489 return -1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1490 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1491 n = PyString_GET_SIZE(v);
38277 b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1492 if (n > (code->size - 1))
b825e6227366 refactor unpack, add unpack_from Bob Ippolito <bob@redivi.com> parents: 38267 diff changeset	1493 n = code->size - 1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1494 if (n > 0)
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1495 memcpy(res + 1, PyString_AS_STRING(v), n);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1496 if (n > 255)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1497 n = 255;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1498 *res = Py_SAFE_DOWNCAST(n, Py_ssize_t, unsigned char);
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1499 } else if (e->pack(res, v, e) < 0) {
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1500 if (strchr(integer_codes, e->format) != NULL &&
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1501 PyErr_ExceptionMatches(PyExc_OverflowError))
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1502 PyErr_Format(StructError,
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1503 "integer out of range for "
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1504 "'%c' format code",
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1505 e->format);
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1506 return -1;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1507 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1508 }
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1509
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1510 /* Success */
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1511 return 0;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1512 }
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1513
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1514
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1515 PyDoc_STRVAR(s_pack__doc__,
38430 795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1516 "S.pack(v1, v2, ...) -> string\n\
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1517 \n\
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1518 Return a string containing values v1, v2, ... packed according to this\n\
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1519 Struct's format. See struct.__doc__ for more on format strings.");
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1520
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1521 static PyObject *
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1522 s_pack(PyObject self, PyObject args)
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1523 {
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1524 PyStructObject *soself;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1525 PyObject *result;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1526
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1527 /* Validate arguments. */
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1528 soself = (PyStructObject *)self;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1529 assert(PyStruct_Check(self));
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1530 assert(soself->s_codes != NULL);
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1531 if (PyTuple_GET_SIZE(args) != soself->s_len)
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1532 {
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1533 PyErr_Format(StructError,
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1534 "pack requires exactly %zd arguments", soself->s_len);
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1535 return NULL;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1536 }
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1537
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1538 /* Allocate a new string */
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1539 result = PyString_FromStringAndSize((char *)NULL, soself->s_size);
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1540 if (result == NULL)
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1541 return NULL;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1542
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1543 /* Call the guts */
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1544 if ( s_pack_internal(soself, args, 0, PyString_AS_STRING(result)) != 0 ) {
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1545 Py_DECREF(result);
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1546 return NULL;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1547 }
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1548
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1549 return result;
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1550 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1551
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1552 PyDoc_STRVAR(s_pack_into__doc__,
a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1553 "S.pack_into(buffer, offset, v1, v2, ...)\n\
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1554 \n\
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1555 Pack the values v1, v2, ... according to this Struct's format, write \n\
38430 795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1556 the packed bytes into the writable buffer buf starting at offset. Note\n\
795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1557 that the offset is not an optional argument. See struct.__doc__ for \n\
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1558 more on format strings.");
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1559
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1560 static PyObject *
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1561 s_pack_into(PyObject self, PyObject args)
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1562 {
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1563 PyStructObject *soself;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1564 char *buffer;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1565 Py_ssize_t buffer_len, offset;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1566
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1567 /* Validate arguments. +1 is for the first arg as buffer. */
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1568 soself = (PyStructObject *)self;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1569 assert(PyStruct_Check(self));
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1570 assert(soself->s_codes != NULL);
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1571 if (PyTuple_GET_SIZE(args) != (soself->s_len + 2))
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1572 {
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1573 PyErr_Format(StructError,
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1574 "pack_into requires exactly %zd arguments",
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1575 (soself->s_len + 2));
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1576 return NULL;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1577 }
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1578
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1579 /* Extract a writable memory buffer from the first argument */
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1580 if ( PyObject_AsWriteBuffer(PyTuple_GET_ITEM(args, 0),
e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1581 (void**)&buffer, &buffer_len) == -1 ) {
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1582 return NULL;
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1583 }
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1584 assert( buffer_len >= 0 );
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1585
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1586 /* Extract the offset from the first argument */
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1587 offset = PyInt_AsSsize_t(PyTuple_GET_ITEM(args, 1));
49351 6a73134f9603 Victor Stinner's patches to check the return result of PyLong_Ssize_t Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1588 if (offset == -1 && PyErr_Occurred())
6a73134f9603 Victor Stinner's patches to check the return result of PyLong_Ssize_t Benjamin Peterson <benjamin@python.org> parents: 47587 diff changeset	1589 return NULL;
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1590
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1591 /* Support negative offsets. */
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1592 if (offset < 0)
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1593 offset += buffer_len;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1594
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1595 /* Check boundaries */
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1596 if (offset < 0 \|\| (buffer_len - offset) < soself->s_size) {
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1597 PyErr_Format(StructError,
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1598 "pack_into requires a buffer of at least %zd bytes",
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1599 soself->s_size);
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1600 return NULL;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1601 }
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1602
38353 36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1603 /* Call the guts */
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1604 if ( s_pack_internal(soself, args, 2, buffer + offset) != 0 ) {
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1605 return NULL;
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1606 }
36cd4a4ab8f7 Support for buffer protocol for socket and struct. Martin Blais <blais@furius.ca> parents: 38322 diff changeset	1607
38470 e0cea605417e Fix ref-antileak in _struct.c which eventually lead to deallocating None. Georg Brandl <georg@python.org> parents: 38445 diff changeset	1608 Py_RETURN_NONE;
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1609 }
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1610
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1611 static PyObject *
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1612 s_get_format(PyStructObject self, void unused)
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1613 {
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1614 Py_INCREF(self->s_format);
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1615 return self->s_format;
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1616 }
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1617
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1618 static PyObject *
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1619 s_get_size(PyStructObject self, void unused)
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1620 {
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1621 return PyInt_FromSsize_t(self->s_size);
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1622 }
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1623
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1624 /* List of functions */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1625
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1626 static struct PyMethodDef s_methods[] = {
38580 a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1627 {"pack", s_pack, METH_VARARGS, s_pack__doc__},
a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1628 {"pack_into", s_pack_into, METH_VARARGS, s_pack_into__doc__},
a114003aa3d3 Fixes in struct and socket from merge reviews. Martin Blais <blais@furius.ca> parents: 38530 diff changeset	1629 {"unpack", s_unpack, METH_O, s_unpack__doc__},
41816 ec83d21065aa Stop using METH_OLDARGS implicitly Neal Norwitz <nnorwitz@gmail.com> parents: 41526 diff changeset	1630 {"unpack_from", (PyCFunction)s_unpack_from, METH_VARARGS\|METH_KEYWORDS,
38583 e00e68dd1ddf s_methods[]: Stop compiler warnings by casting Tim Peters <tim.peters@gmail.com> parents: 38580 diff changeset	1631 s_unpack_from__doc__},
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1632 {NULL, NULL} /* sentinel */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1633 };
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1634
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1635 PyDoc_STRVAR(s__doc__, "Compiled struct object");
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1636
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1637 #define OFF(x) offsetof(PyStructObject, x)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1638
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1639 static PyGetSetDef s_getsetlist[] = {
38430 795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1640 {"format", (getter)s_get_format, (setter)NULL, "struct format string", NULL},
795d1cb1df01 Fix up struct docstrings, add struct.pack_to function for symmetry Bob Ippolito <bob@redivi.com> parents: 38429 diff changeset	1641 {"size", (getter)s_get_size, (setter)NULL, "struct size in bytes", NULL},
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1642 {NULL} /* sentinel */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1643 };
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1644
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1645 static
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1646 PyTypeObject PyStructType = {
42333 6620a510e9a9 PEP 3123: Provide forward compatibility with Python 3.0, while keeping Martin v. Löwis <martin@v.loewis.de> parents: 41816 diff changeset	1647 PyVarObject_HEAD_INIT(NULL, 0)
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1648 "Struct",
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1649 sizeof(PyStructObject),
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1650 0,
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1651 (destructor)s_dealloc, /* tp_dealloc */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1652 0, /* tp_print */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1653 0, /* tp_getattr */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1654 0, /* tp_setattr */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1655 0, /* tp_compare */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1656 0, /* tp_repr */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1657 0, /* tp_as_number */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1658 0, /* tp_as_sequence */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1659 0, /* tp_as_mapping */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1660 0, /* tp_hash */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1661 0, /* tp_call */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1662 0, /* tp_str */
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1663 PyObject_GenericGetAttr, /* tp_getattro */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1664 PyObject_GenericSetAttr, /* tp_setattro */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1665 0, /* tp_as_buffer */
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1666 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_BASETYPE \| Py_TPFLAGS_HAVE_WEAKREFS,/* tp_flags */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1667 s__doc__, /* tp_doc */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1668 0, /* tp_traverse */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1669 0, /* tp_clear */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1670 0, /* tp_richcompare */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1671 offsetof(PyStructObject, weakreflist), /* tp_weaklistoffset */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1672 0, /* tp_iter */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1673 0, /* tp_iternext */
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1674 s_methods, /* tp_methods */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1675 NULL, /* tp_members */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1676 s_getsetlist, /* tp_getset */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1677 0, /* tp_base */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1678 0, /* tp_dict */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1679 0, /* tp_descr_get */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1680 0, /* tp_descr_set */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1681 0, /* tp_dictoffset */
38411 631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1682 s_init, /* tp_init */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1683 PyType_GenericAlloc,/* tp_alloc */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1684 s_new, /* tp_new */
631b6648fdf4 enable all of the struct tests, use ssize_t, fix some whitespace Bob Ippolito <bob@redivi.com> parents: 38378 diff changeset	1685 PyObject_Del, /* tp_free */
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1686 };
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1687
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1688
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1689 /* ---- Standalone functions ---- */
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1690
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1691 #define MAXCACHE 100
44459 7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1692 static PyObject *cache = NULL;
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1693
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1694 static PyObject *
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1695 cache_struct(PyObject *fmt)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1696 {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1697 PyObject * s_object;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1698
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1699 if (cache == NULL) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1700 cache = PyDict_New();
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1701 if (cache == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1702 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1703 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1704
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1705 s_object = PyDict_GetItem(cache, fmt);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1706 if (s_object != NULL) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1707 Py_INCREF(s_object);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1708 return s_object;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1709 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1710
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1711 s_object = PyObject_CallFunctionObjArgs((PyObject *)(&PyStructType), fmt, NULL);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1712 if (s_object != NULL) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1713 if (PyDict_Size(cache) >= MAXCACHE)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1714 PyDict_Clear(cache);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1715 /* Attempt to cache the result */
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1716 if (PyDict_SetItem(cache, fmt, s_object) == -1)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1717 PyErr_Clear();
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1718 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1719 return s_object;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1720 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1721
44459 7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1722 PyDoc_STRVAR(clearcache_doc,
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1723 "Clear the internal cache.");
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1724
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1725 static PyObject *
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1726 clearcache(PyObject *self)
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1727 {
44733 85cf220f16d8 clearcache() needs to remove the dict as well as clear it. Raymond Hettinger <python@rcn.com> parents: 44459 diff changeset	1728 Py_CLEAR(cache);
44459 7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1729 Py_RETURN_NONE;
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1730 }
7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1731
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1732 PyDoc_STRVAR(calcsize_doc,
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1733 "Return size of C struct described by format string fmt.");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1734
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1735 static PyObject *
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1736 calcsize(PyObject self, PyObject fmt)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1737 {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1738 Py_ssize_t n;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1739 PyObject *s_object = cache_struct(fmt);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1740 if (s_object == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1741 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1742 n = ((PyStructObject *)s_object)->s_size;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1743 Py_DECREF(s_object);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1744 return PyInt_FromSsize_t(n);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1745 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1746
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1747 PyDoc_STRVAR(pack_doc,
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1748 "Return string containing values v1, v2, ... packed according to fmt.");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1749
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1750 static PyObject *
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1751 pack(PyObject self, PyObject args)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1752 {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1753 PyObject s_object, fmt, newargs, result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1754 Py_ssize_t n = PyTuple_GET_SIZE(args);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1755
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1756 if (n == 0) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1757 PyErr_SetString(PyExc_TypeError, "missing format argument");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1758 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1759 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1760 fmt = PyTuple_GET_ITEM(args, 0);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1761 newargs = PyTuple_GetSlice(args, 1, n);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1762 if (newargs == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1763 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1764
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1765 s_object = cache_struct(fmt);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1766 if (s_object == NULL) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1767 Py_DECREF(newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1768 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1769 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1770 result = s_pack(s_object, newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1771 Py_DECREF(newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1772 Py_DECREF(s_object);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1773 return result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1774 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1775
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1776 PyDoc_STRVAR(pack_into_doc,
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1777 "Pack the values v1, v2, ... according to fmt.\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1778 Write the packed bytes into the writable buffer buf starting at offset.");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1779
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1780 static PyObject *
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1781 pack_into(PyObject self, PyObject args)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1782 {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1783 PyObject s_object, fmt, newargs, result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1784 Py_ssize_t n = PyTuple_GET_SIZE(args);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1785
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1786 if (n == 0) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1787 PyErr_SetString(PyExc_TypeError, "missing format argument");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1788 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1789 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1790 fmt = PyTuple_GET_ITEM(args, 0);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1791 newargs = PyTuple_GetSlice(args, 1, n);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1792 if (newargs == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1793 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1794
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1795 s_object = cache_struct(fmt);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1796 if (s_object == NULL) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1797 Py_DECREF(newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1798 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1799 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1800 result = s_pack_into(s_object, newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1801 Py_DECREF(newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1802 Py_DECREF(s_object);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1803 return result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1804 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1805
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1806 PyDoc_STRVAR(unpack_doc,
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1807 "Unpack the string containing packed C structure data, according to fmt.\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1808 Requires len(string) == calcsize(fmt).");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1809
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1810 static PyObject *
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1811 unpack(PyObject self, PyObject args)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1812 {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1813 PyObject s_object, fmt, inputstr, result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1814
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1815 if (!PyArg_UnpackTuple(args, "unpack", 2, 2, &fmt, &inputstr))
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1816 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1817
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1818 s_object = cache_struct(fmt);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1819 if (s_object == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1820 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1821 result = s_unpack(s_object, inputstr);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1822 Py_DECREF(s_object);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1823 return result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1824 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1825
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1826 PyDoc_STRVAR(unpack_from_doc,
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1827 "Unpack the buffer, containing packed C structure data, according to\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1828 fmt, starting at offset. Requires len(buffer[offset:]) >= calcsize(fmt).");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1829
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1830 static PyObject *
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1831 unpack_from(PyObject self, PyObject args, PyObject *kwds)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1832 {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1833 PyObject s_object, fmt, newargs, result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1834 Py_ssize_t n = PyTuple_GET_SIZE(args);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1835
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1836 if (n == 0) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1837 PyErr_SetString(PyExc_TypeError, "missing format argument");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1838 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1839 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1840 fmt = PyTuple_GET_ITEM(args, 0);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1841 newargs = PyTuple_GetSlice(args, 1, n);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1842 if (newargs == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1843 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1844
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1845 s_object = cache_struct(fmt);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1846 if (s_object == NULL) {
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1847 Py_DECREF(newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1848 return NULL;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1849 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1850 result = s_unpack_from(s_object, newargs, kwds);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1851 Py_DECREF(newargs);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1852 Py_DECREF(s_object);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1853 return result;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1854 }
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1855
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1856 static struct PyMethodDef module_functions[] = {
44459 7643a43f25a1 Added _struct._clearcache() for regression tests Christian Heimes <christian@cheimes.de> parents: 44446 diff changeset	1857 {"_clearcache", (PyCFunction)clearcache, METH_NOARGS, clearcache_doc},
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1858 {"calcsize", calcsize, METH_O, calcsize_doc},
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1859 {"pack", pack, METH_VARARGS, pack_doc},
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1860 {"pack_into", pack_into, METH_VARARGS, pack_into_doc},
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1861 {"unpack", unpack, METH_VARARGS, unpack_doc},
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1862 {"unpack_from", (PyCFunction)unpack_from,
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1863 METH_VARARGS\|METH_KEYWORDS, unpack_from_doc},
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1864 {NULL, NULL} /* sentinel */
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1865 };
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1866
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1867
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1868 /* Module initialization */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1869
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1870 PyDoc_STRVAR(module_doc,
56416 e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1871 "Functions to convert between Python values and C structs represented\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1872 as Python strings. It uses format strings (explained below) as compact\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1873 descriptions of the lay-out of the C structs and the intended conversion\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1874 to/from Python values.\n\
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1875 \n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1876 The optional first format char indicates byte order, size and alignment:\n\
56416 e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1877 @: native order, size & alignment (default)\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1878 =: native order, std. size & alignment\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1879 <: little-endian, std. size & alignment\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1880 >: big-endian, std. size & alignment\n\
e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1881 !: same as >\n\
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1882 \n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1883 The remaining chars indicate types of args and must match exactly;\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1884 these can be preceded by a decimal repeat count:\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1885 x: pad byte (no data); c:char; b:signed byte; B:unsigned byte;\n\
56416 e759ca25701d Issue #7078: _struct.__doc__ was being ignored. Import it into struct. Mark Dickinson <dickinsm@gmail.com> parents: 56246 diff changeset	1886 ?: _Bool (requires C99; if not available, char is used instead)\n\
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1887 h:short; H:unsigned short; i:int; I:unsigned int;\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1888 l:long; L:unsigned long; f:float; d:double.\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1889 Special cases (preceding decimal count indicates length):\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1890 s:string (array of char); p: pascal string (with count byte).\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1891 Special case (only available in native format):\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1892 P:an integer type that is wide enough to hold a pointer.\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1893 Special case (not in native mode unless 'long long' in platform C):\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1894 q:long long; Q:unsigned long long\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1895 Whitespace between formats is ignored.\n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1896 \n\
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1897 The variable struct.error is an exception raised on errors.\n");
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1898
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1899 PyMODINIT_FUNC
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1900 init_struct(void)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1901 {
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1902 PyObject ver, m;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1903
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1904 ver = PyString_FromString("0.2");
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1905 if (ver == NULL)
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1906 return;
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1907
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1908 m = Py_InitModule3("_struct", module_functions, module_doc);
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1909 if (m == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1910 return;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1911
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 42333 diff changeset	1912 Py_TYPE(&PyStructType) = &PyType_Type;
38312 05324aa444bd Fix Cygwin compiler issue Bob Ippolito <bob@redivi.com> parents: 38310 diff changeset	1913 if (PyType_Ready(&PyStructType) < 0)
05324aa444bd Fix Cygwin compiler issue Bob Ippolito <bob@redivi.com> parents: 38310 diff changeset	1914 return;
05324aa444bd Fix Cygwin compiler issue Bob Ippolito <bob@redivi.com> parents: 38310 diff changeset	1915
55153 b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1916 /* This speed trick can't be used until overflow masking goes
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1917 away, because native endian always raises exceptions
b3fb5e6b7e82 Issue #1523: Remove deprecated overflow masking in struct module, and Mark Dickinson <dickinsm@gmail.com> parents: 55142 diff changeset	1918 instead of overflow masking. */
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1919
38317 68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1920 /* Check endian and swap in faster functions */
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1921 {
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1922 int one = 1;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1923 formatdef *native = native_table;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1924 formatdef other, ptr;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1925 if ((int)(unsigned char)&one)
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1926 other = lilendian_table;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1927 else
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1928 other = bigendian_table;
38322 c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1929 /* Scan through the native table, find a matching
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1930 entry in the endian table and swap in the
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1931 native implementations whenever possible
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1932 (64-bit platforms may not have "standard" sizes) */
38317 68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1933 while (native->format != '\0' && other->format != '\0') {
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1934 ptr = other;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1935 while (ptr->format != '\0') {
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1936 if (ptr->format == native->format) {
38322 c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1937 /* Match faster when formats are
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1938 listed in the same order */
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1939 if (ptr == other)
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1940 other++;
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1941 /* Only use the trick if the
38322 c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1942 size matches */
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1943 if (ptr->size != native->size)
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1944 break;
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1945 /* Skip float and double, could be
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1946 "unknown" float format */
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1947 if (ptr->format == 'd' \|\| ptr->format == 'f')
c77da2736fb2 fix test_float regression and 64-bit size mismatch issue Bob Ippolito <bob@redivi.com> parents: 38317 diff changeset	1948 break;
38317 68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1949 ptr->pack = native->pack;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1950 ptr->unpack = native->unpack;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1951 break;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1952 }
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1953 ptr++;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1954 }
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1955 native++;
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1956 }
68a348c9868d Use faster struct pack/unpack functions for the endian table that matches the host's Bob Ippolito <bob@redivi.com> parents: 38316 diff changeset	1957 }
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1958
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1959 /* Add some symbolic constants to the module */
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1960 if (StructError == NULL) {
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1961 StructError = PyErr_NewException("struct.error", NULL, NULL);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1962 if (StructError == NULL)
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1963 return;
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1964 }
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	1965
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1966 Py_INCREF(StructError);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1967 PyModule_AddObject(m, "error", StructError);
38316 2f16e2715223 Use LONG_MIN and LONG_MAX to check Python integer bounds instead of the incorrect INT_MIN and INT_MAX Bob Ippolito <bob@redivi.com> parents: 38313 diff changeset	1968
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1969 Py_INCREF((PyObject*)&PyStructType);
895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1970 PyModule_AddObject(m, "Struct", (PyObject*)&PyStructType);
38528 e0997ffa3572 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 38520 diff changeset	1971
44446 8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1972 PyModule_AddObject(m, "__version__", ver);
8d69edd3d290 Finish-up the struct module optimizations started at the Iceland NFS sprint. Raymond Hettinger <python@rcn.com> parents: 44350 diff changeset	1973
38493 7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38484 diff changeset	1974 PyModule_AddIntConstant(m, "_PY_STRUCT_RANGE_CHECKING", 1);
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	1975 #ifdef PY_STRUCT_FLOAT_COERCE
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	1976 PyModule_AddIntConstant(m, "_PY_STRUCT_FLOAT_COERCE", 1);
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	1977 #endif
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 39301 diff changeset	1978
38259 895da42480f1 Patch #1493701: performance enhancements for struct module. Bob Ippolito <bob@redivi.com> parents: diff changeset	1979 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/_struct.c @ 57303:4aa4c19dfaed legacy-trunk