cpython-lru_cache-weakref: Objects/bufferobject.c annotate

annotate Objects/bufferobject.c @ 24042:63fbbed10714 legacy-trunk

Simplify HTTPSConnection constructor. See discussion in SF bug 458463.

author	Jeremy Hylton <jeremy@alum.mit.edu>
date	Fri, 28 Jun 2002 23:38:14 +0000
parents	8149d978b006
children	a869d2de536f

rev	line source
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	1
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	2 /* Buffer object implementation */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	3
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	4 #include "Python.h"
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	5
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	6
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	7 typedef struct {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	8 PyObject_HEAD
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	9 PyObject *b_base;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	10 void *b_ptr;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	11 int b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	12 int b_readonly;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	13 long b_hash;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	14 } PyBufferObject;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	15
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	16
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	17 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	18 _PyBuffer_FromMemory(PyObject base, void ptr, int size, int readonly)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	19 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	20 PyBufferObject * b;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	21
10427 e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	22 if ( size < 0 ) {
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	23 PyErr_SetString(PyExc_ValueError,
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	24 "size must be zero or positive");
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	25 return NULL;
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	26 }
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	27
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	28 b = PyObject_NEW(PyBufferObject, &PyBuffer_Type);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	29 if ( b == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	30 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	31
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	32 Py_XINCREF(base);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	33 b->b_base = base;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	34 b->b_ptr = ptr;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	35 b->b_size = size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	36 b->b_readonly = readonly;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	37 b->b_hash = -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	38
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	39 return (PyObject *) b;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	40 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	41
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	42 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	43 _PyBuffer_FromObject(PyObject *base, int offset, int size,
0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	44 getreadbufferproc proc, int readonly)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	45 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	46 PyBufferProcs *pb = base->ob_type->tp_as_buffer;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	47 void *p;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	48 int count;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	49
10427 e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	50 if ( offset < 0 ) {
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	51 PyErr_SetString(PyExc_ValueError,
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	52 "offset must be zero or positive");
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	53 return NULL;
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	54 }
e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	55
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	56 if ( (*pb->bf_getsegcount)(base, NULL) != 1 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	57 {
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	58 PyErr_SetString(PyExc_TypeError,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	59 "single-segment buffer object expected");
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	60 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	61 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	62 if ( (count = (*proc)(base, 0, &p)) < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	63 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	64
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	65 /* apply constraints to the start/end */
10427 e6799a855af7 Added check for negative offset for PyBuffer_FromObject and check for Guido van Rossum <guido@python.org> parents: 9305 diff changeset	66 if ( size == Py_END_OF_BUFFER \|\| size < 0 )
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	67 size = count;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	68 if ( offset > count )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	69 offset = count;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	70 if ( offset + size > count )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	71 size = count - offset;
20565 6f9902ace18d Fix for Bug #216405: Thomas Heller <theller@ctypes.org> parents: 19476 diff changeset	72
6f9902ace18d Fix for Bug #216405: Thomas Heller <theller@ctypes.org> parents: 19476 diff changeset	73 /* if the base object is another buffer, then "deref" it,
6f9902ace18d Fix for Bug #216405: Thomas Heller <theller@ctypes.org> parents: 19476 diff changeset	74 * except if the base of the other buffer is NULL
6f9902ace18d Fix for Bug #216405: Thomas Heller <theller@ctypes.org> parents: 19476 diff changeset	75 */
6f9902ace18d Fix for Bug #216405: Thomas Heller <theller@ctypes.org> parents: 19476 diff changeset	76 if ( PyBuffer_Check(base) && (((PyBufferObject *)base)->b_base) )
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	77 base = ((PyBufferObject *)base)->b_base;
20565 6f9902ace18d Fix for Bug #216405: Thomas Heller <theller@ctypes.org> parents: 19476 diff changeset	78
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	79 return _PyBuffer_FromMemory(base, (char *)p + offset, size, readonly);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	80 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	81
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	82
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	83 PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	84 PyBuffer_FromObject(PyObject *base, int offset, int size)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	85 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	86 PyBufferProcs *pb = base->ob_type->tp_as_buffer;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	87
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	88 if ( pb == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	89 pb->bf_getreadbuffer == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	90 pb->bf_getsegcount == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	91 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	92 PyErr_SetString(PyExc_TypeError, "buffer object expected");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	93 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	94 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	95
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	96 return _PyBuffer_FromObject(base, offset, size,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	97 pb->bf_getreadbuffer, 1);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	98 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	99
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	100 PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	101 PyBuffer_FromReadWriteObject(PyObject *base, int offset, int size)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	102 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	103 PyBufferProcs *pb = base->ob_type->tp_as_buffer;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	104
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	105 if ( pb == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	106 pb->bf_getwritebuffer == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	107 pb->bf_getsegcount == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	108 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	109 PyErr_SetString(PyExc_TypeError, "buffer object expected");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	110 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	111 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	112
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	113 return _PyBuffer_FromObject(base, offset, size,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	114 (getreadbufferproc)pb->bf_getwritebuffer,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	115 0);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	116 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	117
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	118 PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	119 PyBuffer_FromMemory(void *ptr, int size)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	120 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	121 return _PyBuffer_FromMemory(NULL, ptr, size, 1);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	122 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	123
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	124 PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	125 PyBuffer_FromReadWriteMemory(void *ptr, int size)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	126 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	127 return _PyBuffer_FromMemory(NULL, ptr, size, 0);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	128 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	129
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	130 PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	131 PyBuffer_New(int size)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	132 {
13861 f3d5f71ccbb4 Removing warnings found by gcc -Wall Moshe Zadka <moshez@math.huji.ac.il> parents: 13449 diff changeset	133 PyObject *o;
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	134 PyBufferObject * b;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	135
11175 fab81df566d0 PyBuffer_New(): Raise ValueError if size is negative (the other Fred Drake <fdrake@acm.org> parents: 10460 diff changeset	136 if (size < 0) {
fab81df566d0 PyBuffer_New(): Raise ValueError if size is negative (the other Fred Drake <fdrake@acm.org> parents: 10460 diff changeset	137 PyErr_SetString(PyExc_ValueError,
fab81df566d0 PyBuffer_New(): Raise ValueError if size is negative (the other Fred Drake <fdrake@acm.org> parents: 10460 diff changeset	138 "size must be zero or positive");
fab81df566d0 PyBuffer_New(): Raise ValueError if size is negative (the other Fred Drake <fdrake@acm.org> parents: 10460 diff changeset	139 return NULL;
fab81df566d0 PyBuffer_New(): Raise ValueError if size is negative (the other Fred Drake <fdrake@acm.org> parents: 10460 diff changeset	140 }
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 11175 diff changeset	141 /* PyObject_New is inlined */
13861 f3d5f71ccbb4 Removing warnings found by gcc -Wall Moshe Zadka <moshez@math.huji.ac.il> parents: 13449 diff changeset	142 o = PyObject_MALLOC(sizeof(*b) + size);
f3d5f71ccbb4 Removing warnings found by gcc -Wall Moshe Zadka <moshez@math.huji.ac.il> parents: 13449 diff changeset	143 if ( o == NULL )
11175 fab81df566d0 PyBuffer_New(): Raise ValueError if size is negative (the other Fred Drake <fdrake@acm.org> parents: 10460 diff changeset	144 return PyErr_NoMemory();
13861 f3d5f71ccbb4 Removing warnings found by gcc -Wall Moshe Zadka <moshez@math.huji.ac.il> parents: 13449 diff changeset	145 b = (PyBufferObject *) PyObject_INIT(o, &PyBuffer_Type);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	146
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	147 b->b_base = NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	148 b->b_ptr = (void *)(b + 1);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	149 b->b_size = size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	150 b->b_readonly = 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	151 b->b_hash = -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	152
13861 f3d5f71ccbb4 Removing warnings found by gcc -Wall Moshe Zadka <moshez@math.huji.ac.il> parents: 13449 diff changeset	153 return o;
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	154 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	155
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	156 /* Methods */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	157
23868 8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	158 static PyObject *
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	159 buffer_new(PyTypeObject type, PyObject args, PyObject *kw)
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	160 {
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	161 PyObject *ob;
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	162 int offset = 0;
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	163 int size = Py_END_OF_BUFFER;
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	164
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	165 if ( !PyArg_ParseTuple(args, "O\|ii:buffer", &ob, &offset, &size) )
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	166 return NULL;
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	167 return PyBuffer_FromObject(ob, offset, size);
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	168 }
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	169
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	170 PyDoc_STRVAR(buffer_doc,
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	171 "buffer(object [, offset[, size]])\n\
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	172 \n\
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	173 Create a new buffer object which references the given object.\n\
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	174 The buffer will reference a slice of the target object from the\n\
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	175 start of the object (or at the specified offset). The slice will\n\
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	176 extend to the end of the target object (or with the specified size).");
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	177
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	178
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	179 static void
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	180 buffer_dealloc(PyBufferObject *self)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	181 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	182 Py_XDECREF(self->b_base);
12576 1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring. Guido van Rossum <guido@python.org> parents: 11175 diff changeset	183 PyObject_DEL(self);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	184 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	185
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	186 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	187 buffer_compare(PyBufferObject self, PyBufferObject other)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	188 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	189 int len_self = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	190 int len_other = other->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	191 int min_len = (len_self < len_other) ? len_self : len_other;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	192 int cmp;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	193 if (min_len > 0) {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	194 cmp = memcmp(self->b_ptr, other->b_ptr, min_len);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	195 if (cmp != 0)
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	196 return cmp;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	197 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	198 return (len_self < len_other) ? -1 : (len_self > len_other) ? 1 : 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	199 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	200
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	201 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	202 buffer_repr(PyBufferObject *self)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	203 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	204 char *status = self->b_readonly ? "read-only" : "read-write";
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	205
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	206 if ( self->b_base == NULL )
19476 0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	207 return PyString_FromFormat("<%s buffer ptr %p, size %d at %p>",
0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	208 status,
0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	209 self->b_ptr,
0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	210 self->b_size,
0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	211 self);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	212 else
19476 0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	213 return PyString_FromFormat(
0e70df98424e repr's converted to using PyString_FromFormat() instead of sprintf'ing Barry Warsaw <barry@python.org> parents: 18933 diff changeset	214 "<%s buffer for %p, ptr %p, size %d at %p>",
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	215 status,
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	216 self->b_base,
ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	217 self->b_ptr,
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	218 self->b_size,
13210 ff243b0f16ee Trent Mick <trentm@activestate.com>: Fred Drake <fdrake@acm.org> parents: 12576 diff changeset	219 self);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	220 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	221
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	222 static long
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	223 buffer_hash(PyBufferObject *self)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	224 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	225 register int len;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	226 register unsigned char *p;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	227 register long x;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	228
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	229 if ( self->b_hash != -1 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	230 return self->b_hash;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	231
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	232 if ( !self->b_readonly )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	233 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	234 /* ### use different wording, since this is conditional? */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	235 PyErr_SetString(PyExc_TypeError, "unhashable type");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	236 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	237 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	238
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	239 len = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	240 p = (unsigned char *) self->b_ptr;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	241 x = *p << 7;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	242 while (--len >= 0)
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	243 x = (1000003x) ^ p++;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	244 x ^= self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	245 if (x == -1)
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	246 x = -2;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	247 self->b_hash = x;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	248 return x;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	249 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	250
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	251 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	252 buffer_str(PyBufferObject *self)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	253 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	254 return PyString_FromStringAndSize(self->b_ptr, self->b_size);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	255 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	256
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	257 /* Sequence methods */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	258
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	259 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	260 buffer_length(PyBufferObject *self)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	261 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	262 return self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	263 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	264
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	265 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	266 buffer_concat(PyBufferObject self, PyObject other)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	267 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	268 PyBufferProcs *pb = other->ob_type->tp_as_buffer;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	269 char *p1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	270 void *p2;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	271 PyObject *ob;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	272 int count;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	273
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	274 if ( pb == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	275 pb->bf_getreadbuffer == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	276 pb->bf_getsegcount == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	277 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	278 PyErr_BadArgument();
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	279 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	280 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	281 if ( (*pb->bf_getsegcount)(other, NULL) != 1 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	282 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	283 /* ### use a different exception type/message? */
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	284 PyErr_SetString(PyExc_TypeError,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	285 "single-segment buffer object expected");
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	286 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	287 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	288
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	289 /* optimize special case */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	290 if ( self->b_size == 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	291 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	292 Py_INCREF(other);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	293 return other;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	294 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	295
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	296 if ( (count = (*pb->bf_getreadbuffer)(other, 0, &p2)) < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	297 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	298
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	299 ob = PyString_FromStringAndSize(NULL, self->b_size + count);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	300 p1 = PyString_AS_STRING(ob);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	301 memcpy(p1, self->b_ptr, self->b_size);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	302 memcpy(p1 + self->b_size, p2, count);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	303
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	304 /* there is an extra byte in the string object, so this is safe */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	305 p1[self->b_size + count] = '\0';
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	306
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	307 return ob;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	308 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	309
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	310 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	311 buffer_repeat(PyBufferObject *self, int count)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	312 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	313 PyObject *ob;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	314 register char *p;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	315 void *ptr = self->b_ptr;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	316 int size = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	317
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	318 if ( count < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	319 count = 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	320 ob = PyString_FromStringAndSize(NULL, size * count);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	321 if ( ob == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	322 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	323
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	324 p = PyString_AS_STRING(ob);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	325 while ( count-- )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	326 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	327 memcpy(p, ptr, size);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	328 p += size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	329 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	330
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	331 /* there is an extra byte in the string object, so this is safe */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	332 *p = '\0';
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	333
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	334 return ob;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	335 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	336
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	337 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	338 buffer_item(PyBufferObject *self, int idx)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	339 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	340 if ( idx < 0 \|\| idx >= self->b_size )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	341 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	342 PyErr_SetString(PyExc_IndexError, "buffer index out of range");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	343 return NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	344 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	345 return PyString_FromStringAndSize((char *)self->b_ptr + idx, 1);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	346 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	347
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	348 static PyObject *
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	349 buffer_slice(PyBufferObject *self, int left, int right)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	350 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	351 if ( left < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	352 left = 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	353 if ( right < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	354 right = 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	355 if ( right > self->b_size )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	356 right = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	357 if ( right < left )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	358 right = left;
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	359 return PyString_FromStringAndSize((char *)self->b_ptr + left,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	360 right - left);
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	361 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	362
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	363 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	364 buffer_ass_item(PyBufferObject self, int idx, PyObject other)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	365 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	366 PyBufferProcs *pb;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	367 void *p;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	368 int count;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	369
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	370 if ( self->b_readonly ) {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	371 PyErr_SetString(PyExc_TypeError,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	372 "buffer is read-only");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	373 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	374 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	375
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	376 if (idx < 0 \|\| idx >= self->b_size) {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	377 PyErr_SetString(PyExc_IndexError,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	378 "buffer assignment index out of range");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	379 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	380 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	381
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	382 pb = other ? other->ob_type->tp_as_buffer : NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	383 if ( pb == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	384 pb->bf_getreadbuffer == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	385 pb->bf_getsegcount == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	386 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	387 PyErr_BadArgument();
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	388 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	389 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	390 if ( (*pb->bf_getsegcount)(other, NULL) != 1 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	391 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	392 /* ### use a different exception type/message? */
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	393 PyErr_SetString(PyExc_TypeError,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	394 "single-segment buffer object expected");
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	395 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	396 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	397
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	398 if ( (count = (*pb->bf_getreadbuffer)(other, 0, &p)) < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	399 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	400 if ( count != 1 ) {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	401 PyErr_SetString(PyExc_TypeError,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	402 "right operand must be a single byte");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	403 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	404 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	405
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	406 ((char )self->b_ptr)[idx] = (char *)p;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	407 return 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	408 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	409
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	410 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	411 buffer_ass_slice(PyBufferObject self, int left, int right, PyObject other)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	412 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	413 PyBufferProcs *pb;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	414 void *p;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	415 int slice_len;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	416 int count;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	417
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	418 if ( self->b_readonly ) {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	419 PyErr_SetString(PyExc_TypeError,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	420 "buffer is read-only");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	421 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	422 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	423
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	424 pb = other ? other->ob_type->tp_as_buffer : NULL;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	425 if ( pb == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	426 pb->bf_getreadbuffer == NULL \|\|
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	427 pb->bf_getsegcount == NULL )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	428 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	429 PyErr_BadArgument();
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	430 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	431 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	432 if ( (*pb->bf_getsegcount)(other, NULL) != 1 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	433 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	434 /* ### use a different exception type/message? */
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	435 PyErr_SetString(PyExc_TypeError,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	436 "single-segment buffer object expected");
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	437 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	438 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	439 if ( (count = (*pb->bf_getreadbuffer)(other, 0, &p)) < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	440 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	441
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	442 if ( left < 0 )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	443 left = 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	444 else if ( left > self->b_size )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	445 left = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	446 if ( right < left )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	447 right = left;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	448 else if ( right > self->b_size )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	449 right = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	450 slice_len = right - left;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	451
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	452 if ( count != slice_len ) {
10460 62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	453 PyErr_SetString(
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	454 PyExc_TypeError,
62781914fadb Folded long lines. Guido van Rossum <guido@python.org> parents: 10427 diff changeset	455 "right operand length must match slice length");
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	456 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	457 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	458
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	459 if ( slice_len )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	460 memcpy((char *)self->b_ptr + left, p, slice_len);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	461
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	462 return 0;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	463 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	464
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	465 /* Buffer methods */
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	466
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	467 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	468 buffer_getreadbuf(PyBufferObject self, int idx, void *pp)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	469 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	470 if ( idx != 0 ) {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	471 PyErr_SetString(PyExc_SystemError,
9305 083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	472 "accessing non-existent buffer segment");
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	473 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	474 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	475 *pp = self->b_ptr;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	476 return self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	477 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	478
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	479 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	480 buffer_getwritebuf(PyBufferObject self, int idx, void *pp)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	481 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	482 if ( self->b_readonly )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	483 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	484 PyErr_SetString(PyExc_TypeError, "buffer is read-only");
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	485 return -1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	486 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	487 return buffer_getreadbuf(self, idx, pp);
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	488 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	489
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	490 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	491 buffer_getsegcount(PyBufferObject self, int lenp)
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	492 {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	493 if ( lenp )
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	494 *lenp = self->b_size;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	495 return 1;
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	496 }
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	497
9305 083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	498 static int
13449 0409a98cd582 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	499 buffer_getcharbuf(PyBufferObject self, int idx, const char *pp)
9305 083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	500 {
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	501 if ( idx != 0 ) {
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	502 PyErr_SetString(PyExc_SystemError,
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	503 "accessing non-existent buffer segment");
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	504 return -1;
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	505 }
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	506 pp = (const char )self->b_ptr;
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	507 return self->b_size;
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	508 }
083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	509
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	510
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	511 static PySequenceMethods buffer_as_sequence = {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	512 (inquiry)buffer_length, /sq_length/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	513 (binaryfunc)buffer_concat, /sq_concat/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	514 (intargfunc)buffer_repeat, /sq_repeat/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	515 (intargfunc)buffer_item, /sq_item/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	516 (intintargfunc)buffer_slice, /sq_slice/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	517 (intobjargproc)buffer_ass_item, /sq_ass_item/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	518 (intintobjargproc)buffer_ass_slice, /sq_ass_slice/
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	519 };
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	520
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	521 static PyBufferProcs buffer_as_buffer = {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	522 (getreadbufferproc)buffer_getreadbuf,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	523 (getwritebufferproc)buffer_getwritebuf,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	524 (getsegcountproc)buffer_getsegcount,
9305 083efa076366 Greg Stein: Implement the new bf_getcharbuffer function, indicating Guido van Rossum <guido@python.org> parents: 9286 diff changeset	525 (getcharbufferproc)buffer_getcharbuf,
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	526 };
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	527
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	528 PyTypeObject PyBuffer_Type = {
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	529 PyObject_HEAD_INIT(&PyType_Type)
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	530 0,
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	531 "buffer",
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	532 sizeof(PyBufferObject),
c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	533 0,
18933 09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	534 (destructor)buffer_dealloc, /* tp_dealloc */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	535 0, /* tp_print */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	536 0, /* tp_getattr */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	537 0, /* tp_setattr */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	538 (cmpfunc)buffer_compare, /* tp_compare */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	539 (reprfunc)buffer_repr, /* tp_repr */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	540 0, /* tp_as_number */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	541 &buffer_as_sequence, /* tp_as_sequence */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	542 0, /* tp_as_mapping */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	543 (hashfunc)buffer_hash, /* tp_hash */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	544 0, /* tp_call */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	545 (reprfunc)buffer_str, /* tp_str */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	546 PyObject_GenericGetAttr, /* tp_getattro */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	547 0, /* tp_setattro */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	548 &buffer_as_buffer, /* tp_as_buffer */
09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	549 Py_TPFLAGS_DEFAULT, /* tp_flags */
23868 8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	550 buffer_doc, /* tp_doc */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	551 0, /* tp_traverse */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	552 0, /* tp_clear */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	553 0, /* tp_richcompare */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	554 0, /* tp_weaklistoffset */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	555 0, /* tp_iter */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	556 0, /* tp_iternext */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	557 0, /* tp_methods */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	558 0, /* tp_members */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	559 0, /* tp_getset */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	560 0, /* tp_base */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	561 0, /* tp_dict */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	562 0, /* tp_descr_get */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	563 0, /* tp_descr_set */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	564 0, /* tp_dictoffset */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	565 0, /* tp_init */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	566 0, /* tp_alloc */
8e6760bf1884 SF patch 568629 by Oren Tirosh: types made callable. Guido van Rossum <guido@python.org> parents: 22651 diff changeset	567 buffer_new, /* tp_new */
9278 c39218a68df1 Add Greg Stein's buffer object API. Guido van Rossum <guido@python.org> parents: diff changeset	568 };

Mercurial > cpython-lru_cache-weakref

annotate Objects/bufferobject.c @ 24042:63fbbed10714 legacy-trunk