cpython-lru_cache-weakref: Modules/

annotate Modules/_io/bytesio.c @ 58765:2ba7677bfa95 legacy-trunk

testCopysign was defined twice in test_math; combine the definitions

author	Mark Dickinson <dickinsm@gmail.com>
date	Sat, 06 Feb 2010 23:11:25 +0000
parents	77130f2fe944
children	9b438bb06d4d

rev	line source
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	1 #include "Python.h"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	2 #include "structmember.h" /* for offsetof() */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	3 #include "_iomodule.h"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	4
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	5 typedef struct {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	6 PyObject_HEAD
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	7 char *buf;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	8 Py_ssize_t pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	9 Py_ssize_t string_size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	10 size_t buf_size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	11 PyObject *dict;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	12 PyObject *weakreflist;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	13 } bytesio;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	14
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	15 #define CHECK_CLOSED(self) \
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	16 if ((self)->buf == NULL) { \
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	17 PyErr_SetString(PyExc_ValueError, \
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	18 "I/O operation on closed file."); \
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	19 return NULL; \
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	20 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	21
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	22 /* Internal routine to get a line from the buffer of a BytesIO
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	23 object. Returns the length between the current position to the
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	24 next newline character. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	25 static Py_ssize_t
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	26 get_line(bytesio self, char *output)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	27 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	28 char *n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	29 const char *str_end;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	30 Py_ssize_t len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	31
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	32 assert(self->buf != NULL);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	33
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	34 /* Move to the end of the line, up to the end of the string, s. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	35 str_end = self->buf + self->string_size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	36 for (n = self->buf + self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	37 n < str_end && *n != '\n';
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	38 n++);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	39
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	40 /* Skip the newline character */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	41 if (n < str_end)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	42 n++;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	43
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	44 /* Get the length from the current position to the end of the line. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	45 len = n - (self->buf + self->pos);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	46 *output = self->buf + self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	47
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	48 assert(len >= 0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	49 assert(self->pos < PY_SSIZE_T_MAX - len);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	50 self->pos += len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	51
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	52 return len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	53 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	54
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	55 /* Internal routine for changing the size of the buffer of BytesIO objects.
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	56 The caller should ensure that the 'size' argument is non-negative. Returns
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	57 0 on success, -1 otherwise. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	58 static int
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	59 resize_buffer(bytesio *self, size_t size)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	60 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	61 /* Here, unsigned types are used to avoid dealing with signed integer
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	62 overflow, which is undefined in C. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	63 size_t alloc = self->buf_size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	64 char *new_buf = NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	65
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	66 assert(self->buf != NULL);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	67
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	68 /* For simplicity, stay in the range of the signed type. Anyway, Python
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	69 doesn't allow strings to be longer than this. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	70 if (size > PY_SSIZE_T_MAX)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	71 goto overflow;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	72
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	73 if (size < alloc / 2) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	74 /* Major downsize; resize down to exact size. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	75 alloc = size + 1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	76 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	77 else if (size < alloc) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	78 /* Within allocated size; quick exit */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	79 return 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	80 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	81 else if (size <= alloc * 1.125) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	82 /* Moderate upsize; overallocate similar to list_resize() */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	83 alloc = size + (size >> 3) + (size < 9 ? 3 : 6);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	84 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	85 else {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	86 /* Major upsize; resize up to exact size */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	87 alloc = size + 1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	88 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	89
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	90 if (alloc > ((size_t)-1) / sizeof(char))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	91 goto overflow;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	92 new_buf = (char )PyMem_Realloc(self->buf, alloc sizeof(char));
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	93 if (new_buf == NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	94 PyErr_NoMemory();
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	95 return -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	96 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	97 self->buf_size = alloc;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	98 self->buf = new_buf;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	99
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	100 return 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	101
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	102 overflow:
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	103 PyErr_SetString(PyExc_OverflowError,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	104 "new buffer size too large");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	105 return -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	106 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	107
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	108 /* Internal routine for writing a string of bytes to the buffer of a BytesIO
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	109 object. Returns the number of bytes wrote, or -1 on error. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	110 static Py_ssize_t
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	111 write_bytes(bytesio self, const char bytes, Py_ssize_t len)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	112 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	113 assert(self->buf != NULL);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	114 assert(self->pos >= 0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	115 assert(len >= 0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	116
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	117 if ((size_t)self->pos + len > self->buf_size) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	118 if (resize_buffer(self, (size_t)self->pos + len) < 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	119 return -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	120 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	121
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	122 if (self->pos > self->string_size) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	123 /* In case of overseek, pad with null bytes the buffer region between
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	124 the end of stream and the current position.
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	125
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	126 0 lo string_size hi
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	127 \| \|<---used--->\|<----------available----------->\|
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	128 \| \| <--to pad-->\|<---to write---> \|
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	129 0 buf position
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	130 */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	131 memset(self->buf + self->string_size, '\0',
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	132 (self->pos - self->string_size) * sizeof(char));
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	133 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	134
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	135 /* Copy the data to the internal buffer, overwriting some of the existing
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	136 data if self->pos < self->string_size. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	137 memcpy(self->buf + self->pos, bytes, len);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	138 self->pos += len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	139
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	140 /* Set the new length of the internal string if it has changed. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	141 if (self->string_size < self->pos) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	142 self->string_size = self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	143 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	144
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	145 return len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	146 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	147
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	148 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	149 bytesio_get_closed(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	150 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	151 if (self->buf == NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	152 Py_RETURN_TRUE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	153 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	154 else {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	155 Py_RETURN_FALSE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	156 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	157 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	158
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	159 /* Generic getter for the writable, readable and seekable properties */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	160 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	161 return_true(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	162 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	163 Py_RETURN_TRUE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	164 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	165
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	166 PyDoc_STRVAR(flush_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	167 "flush() -> None. Does nothing.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	168
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	169 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	170 bytesio_flush(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	171 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	172 Py_RETURN_NONE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	173 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	174
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	175 PyDoc_STRVAR(getval_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	176 "getvalue() -> bytes.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	177 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	178 "Retrieve the entire contents of the BytesIO object.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	179
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	180 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	181 bytesio_getvalue(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	182 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	183 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	184 return PyBytes_FromStringAndSize(self->buf, self->string_size);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	185 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	186
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	187 PyDoc_STRVAR(isatty_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	188 "isatty() -> False.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	189 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	190 "Always returns False since BytesIO objects are not connected\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	191 "to a tty-like device.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	192
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	193 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	194 bytesio_isatty(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	195 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	196 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	197 Py_RETURN_FALSE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	198 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	199
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	200 PyDoc_STRVAR(tell_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	201 "tell() -> current file position, an integer\n");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	202
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	203 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	204 bytesio_tell(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	205 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	206 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	207 return PyLong_FromSsize_t(self->pos);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	208 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	209
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	210 PyDoc_STRVAR(read_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	211 "read([size]) -> read at most size bytes, returned as a string.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	212 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	213 "If the size argument is negative, read until EOF is reached.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	214 "Return an empty string at EOF.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	215
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	216 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	217 bytesio_read(bytesio self, PyObject args)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	218 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	219 Py_ssize_t size, n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	220 char *output;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	221 PyObject *arg = Py_None;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	222
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	223 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	224
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	225 if (!PyArg_ParseTuple(args, "\|O:read", &arg))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	226 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	227
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	228 if (PyNumber_Check(arg)) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	229 size = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	230 if (size == -1 && PyErr_Occurred())
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	231 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	232 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	233 else if (arg == Py_None) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	234 /* Read until EOF is reached, by default. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	235 size = -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	236 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	237 else {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	238 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	239 Py_TYPE(arg)->tp_name);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	240 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	241 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	242
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	243 /* adjust invalid sizes */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	244 n = self->string_size - self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	245 if (size < 0 \|\| size > n) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	246 size = n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	247 if (size < 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	248 size = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	249 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	250
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	251 assert(self->buf != NULL);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	252 output = self->buf + self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	253 self->pos += size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	254
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	255 return PyBytes_FromStringAndSize(output, size);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	256 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	257
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	258
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	259 PyDoc_STRVAR(read1_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	260 "read1(size) -> read at most size bytes, returned as a string.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	261 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	262 "If the size argument is negative or omitted, read until EOF is reached.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	263 "Return an empty string at EOF.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	264
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	265 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	266 bytesio_read1(bytesio self, PyObject n)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	267 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	268 PyObject arg, res;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	269
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	270 arg = PyTuple_Pack(1, n);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	271 if (arg == NULL)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	272 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	273 res = bytesio_read(self, arg);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	274 Py_DECREF(arg);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	275 return res;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	276 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	277
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	278 PyDoc_STRVAR(readline_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	279 "readline([size]) -> next line from the file, as a string.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	280 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	281 "Retain newline. A non-negative size argument limits the maximum\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	282 "number of bytes to return (an incomplete line may be returned then).\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	283 "Return an empty string at EOF.\n");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	284
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	285 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	286 bytesio_readline(bytesio self, PyObject args)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	287 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	288 Py_ssize_t size, n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	289 char *output;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	290 PyObject *arg = Py_None;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	291
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	292 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	293
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	294 if (!PyArg_ParseTuple(args, "\|O:readline", &arg))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	295 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	296
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	297 if (PyNumber_Check(arg)) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	298 size = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	299 if (size == -1 && PyErr_Occurred())
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	300 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	301 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	302 else if (arg == Py_None) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	303 /* No size limit, by default. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	304 size = -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	305 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	306 else {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	307 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	308 Py_TYPE(arg)->tp_name);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	309 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	310 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	311
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	312 n = get_line(self, &output);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	313
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	314 if (size >= 0 && size < n) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	315 size = n - size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	316 n -= size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	317 self->pos -= size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	318 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	319
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	320 return PyBytes_FromStringAndSize(output, n);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	321 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	322
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	323 PyDoc_STRVAR(readlines_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	324 "readlines([size]) -> list of strings, each a line from the file.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	325 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	326 "Call readline() repeatedly and return a list of the lines so read.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	327 "The optional size argument, if given, is an approximate bound on the\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	328 "total number of bytes in the lines returned.\n");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	329
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	330 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	331 bytesio_readlines(bytesio self, PyObject args)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	332 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	333 Py_ssize_t maxsize, size, n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	334 PyObject result, line;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	335 char *output;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	336 PyObject *arg = Py_None;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	337
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	338 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	339
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	340 if (!PyArg_ParseTuple(args, "\|O:readlines", &arg))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	341 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	342
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	343 if (PyNumber_Check(arg)) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	344 maxsize = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	345 if (maxsize == -1 && PyErr_Occurred())
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	346 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	347 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	348 else if (arg == Py_None) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	349 /* No size limit, by default. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	350 maxsize = -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	351 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	352 else {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	353 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	354 Py_TYPE(arg)->tp_name);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	355 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	356 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	357
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	358 size = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	359 result = PyList_New(0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	360 if (!result)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	361 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	362
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	363 while ((n = get_line(self, &output)) != 0) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	364 line = PyBytes_FromStringAndSize(output, n);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	365 if (!line)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	366 goto on_error;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	367 if (PyList_Append(result, line) == -1) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	368 Py_DECREF(line);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	369 goto on_error;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	370 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	371 Py_DECREF(line);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	372 size += n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	373 if (maxsize > 0 && size >= maxsize)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	374 break;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	375 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	376 return result;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	377
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	378 on_error:
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	379 Py_DECREF(result);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	380 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	381 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	382
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	383 PyDoc_STRVAR(readinto_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	384 "readinto(bytearray) -> int. Read up to len(b) bytes into b.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	385 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	386 "Returns number of bytes read (0 for EOF), or None if the object\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	387 "is set not to block as has no data to read.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	388
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	389 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	390 bytesio_readinto(bytesio self, PyObject args)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	391 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	392 Py_buffer buf;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	393 Py_ssize_t len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	394
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	395 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	396
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	397 if (!PyArg_ParseTuple(args, "w*", &buf))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	398 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	399
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	400 len = buf.len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	401 if (self->pos + len > self->string_size)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	402 len = self->string_size - self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	403
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	404 memcpy(buf.buf, self->buf + self->pos, len);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	405 assert(self->pos + len < PY_SSIZE_T_MAX);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	406 assert(len >= 0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	407 self->pos += len;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	408
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	409 PyBuffer_Release(&buf);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	410 return PyLong_FromSsize_t(len);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	411 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	412
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	413 PyDoc_STRVAR(truncate_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	414 "truncate([size]) -> int. Truncate the file to at most size bytes.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	415 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	416 "Size defaults to the current file position, as returned by tell().\n"
58624 77130f2fe944 - Issue #6939: Fix file I/O objects in the `io` module to keep the original Antoine Pitrou <solipsis@pitrou.net> parents: 56704 diff changeset	417 "The current file position is unchanged. Returns the new size.\n");
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	418
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	419 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	420 bytesio_truncate(bytesio self, PyObject args)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	421 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	422 Py_ssize_t size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	423 PyObject *arg = Py_None;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	424
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	425 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	426
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	427 if (!PyArg_ParseTuple(args, "\|O:truncate", &arg))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	428 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	429
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	430 if (PyNumber_Check(arg)) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	431 size = PyNumber_AsSsize_t(arg, PyExc_OverflowError);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	432 if (size == -1 && PyErr_Occurred())
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	433 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	434 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	435 else if (arg == Py_None) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	436 /* Truncate to current position if no argument is passed. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	437 size = self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	438 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	439 else {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	440 PyErr_Format(PyExc_TypeError, "integer argument expected, got '%s'",
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	441 Py_TYPE(arg)->tp_name);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	442 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	443 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	444
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	445 if (size < 0) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	446 PyErr_Format(PyExc_ValueError,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	447 "negative size value %zd", size);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	448 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	449 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	450
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	451 if (size < self->string_size) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	452 self->string_size = size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	453 if (resize_buffer(self, size) < 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	454 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	455 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	456
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	457 return PyLong_FromSsize_t(size);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	458 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	459
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	460 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	461 bytesio_iternext(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	462 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	463 char *next;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	464 Py_ssize_t n;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	465
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	466 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	467
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	468 n = get_line(self, &next);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	469
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	470 if (!next \|\| n == 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	471 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	472
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	473 return PyBytes_FromStringAndSize(next, n);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	474 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	475
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	476 PyDoc_STRVAR(seek_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	477 "seek(pos, whence=0) -> int. Change stream position.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	478 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	479 "Seek to byte offset pos relative to position indicated by whence:\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	480 " 0 Start of stream (the default). pos should be >= 0;\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	481 " 1 Current position - pos may be negative;\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	482 " 2 End of stream - pos usually negative.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	483 "Returns the new absolute position.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	484
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	485 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	486 bytesio_seek(bytesio self, PyObject args)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	487 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	488 PyObject *posobj;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	489 Py_ssize_t pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	490 int mode = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	491
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	492 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	493
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	494 if (!PyArg_ParseTuple(args, "O\|i:seek", &posobj, &mode))
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	495 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	496
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	497 pos = PyNumber_AsSsize_t(posobj, PyExc_OverflowError);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	498 if (pos == -1 && PyErr_Occurred())
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	499 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	500
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	501 if (pos < 0 && mode == 0) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	502 PyErr_Format(PyExc_ValueError,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	503 "negative seek value %zd", pos);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	504 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	505 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	506
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	507 /* mode 0: offset relative to beginning of the string.
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	508 mode 1: offset relative to current position.
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	509 mode 2: offset relative the end of the string. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	510 if (mode == 1) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	511 if (pos > PY_SSIZE_T_MAX - self->pos) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	512 PyErr_SetString(PyExc_OverflowError,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	513 "new position too large");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	514 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	515 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	516 pos += self->pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	517 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	518 else if (mode == 2) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	519 if (pos > PY_SSIZE_T_MAX - self->string_size) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	520 PyErr_SetString(PyExc_OverflowError,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	521 "new position too large");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	522 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	523 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	524 pos += self->string_size;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	525 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	526 else if (mode != 0) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	527 PyErr_Format(PyExc_ValueError,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	528 "invalid whence (%i, should be 0, 1 or 2)", mode);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	529 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	530 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	531
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	532 if (pos < 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	533 pos = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	534 self->pos = pos;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	535
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	536 return PyLong_FromSsize_t(self->pos);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	537 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	538
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	539 PyDoc_STRVAR(write_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	540 "write(bytes) -> int. Write bytes to file.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	541 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	542 "Return the number of bytes written.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	543
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	544 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	545 bytesio_write(bytesio self, PyObject obj)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	546 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	547 Py_ssize_t n = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	548 Py_buffer buf;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	549 PyObject *result = NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	550
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	551 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	552
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	553 if (PyObject_GetBuffer(obj, &buf, PyBUF_CONTIG_RO) < 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	554 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	555
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	556 if (buf.len != 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	557 n = write_bytes(self, buf.buf, buf.len);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	558 if (n >= 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	559 result = PyLong_FromSsize_t(n);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	560
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	561 PyBuffer_Release(&buf);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	562 return result;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	563 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	564
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	565 PyDoc_STRVAR(writelines_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	566 "writelines(sequence_of_strings) -> None. Write strings to the file.\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	567 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	568 "Note that newlines are not added. The sequence can be any iterable\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	569 "object producing strings. This is equivalent to calling write() for\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	570 "each string.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	571
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	572 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	573 bytesio_writelines(bytesio self, PyObject v)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	574 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	575 PyObject it, item;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	576 PyObject *ret;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	577
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	578 CHECK_CLOSED(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	579
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	580 it = PyObject_GetIter(v);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	581 if (it == NULL)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	582 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	583
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	584 while ((item = PyIter_Next(it)) != NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	585 ret = bytesio_write(self, item);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	586 Py_DECREF(item);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	587 if (ret == NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	588 Py_DECREF(it);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	589 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	590 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	591 Py_DECREF(ret);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	592 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	593 Py_DECREF(it);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	594
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	595 /* See if PyIter_Next failed */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	596 if (PyErr_Occurred())
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	597 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	598
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	599 Py_RETURN_NONE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	600 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	601
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	602 PyDoc_STRVAR(close_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	603 "close() -> None. Disable all I/O operations.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	604
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	605 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	606 bytesio_close(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	607 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	608 if (self->buf != NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	609 PyMem_Free(self->buf);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	610 self->buf = NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	611 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	612 Py_RETURN_NONE;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	613 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	614
56703 264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	615 /* Pickling support.
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	616
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	617 Note that only pickle protocol 2 and onward are supported since we use
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	618 extended __reduce__ API of PEP 307 to make BytesIO instances picklable.
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	619
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	620 Providing support for protocol < 2 would require the __reduce_ex__ method
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	621 which is notably long-winded when defined properly.
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	622
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	623 For BytesIO, the implementation would similar to one coded for
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	624 object.__reduce_ex__, but slightly less general. To be more specific, we
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	625 could call bytesio_getstate directly and avoid checking for the presence of
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	626 a fallback __reduce__ method. However, we would still need a __newobj__
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	627 function to use the efficient instance representation of PEP 307.
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	628 */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	629
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	630 static PyObject *
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	631 bytesio_getstate(bytesio *self)
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	632 {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	633 PyObject *initvalue = bytesio_getvalue(self);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	634 PyObject *dict;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	635 PyObject *state;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	636
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	637 if (initvalue == NULL)
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	638 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	639 if (self->dict == NULL) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	640 Py_INCREF(Py_None);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	641 dict = Py_None;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	642 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	643 else {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	644 dict = PyDict_Copy(self->dict);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	645 if (dict == NULL)
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	646 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	647 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	648
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	649 state = Py_BuildValue("(OnN)", initvalue, self->pos, dict);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	650 Py_DECREF(initvalue);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	651 return state;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	652 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	653
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	654 static PyObject *
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	655 bytesio_setstate(bytesio self, PyObject state)
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	656 {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	657 PyObject *result;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	658 PyObject *position_obj;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	659 PyObject *dict;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	660 Py_ssize_t pos;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	661
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	662 assert(state != NULL);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	663
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	664 /* We allow the state tuple to be longer than 3, because we may need
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	665 someday to extend the object's state without breaking
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	666 backward-compatibility. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	667 if (!PyTuple_Check(state) \|\| Py_SIZE(state) < 3) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	668 PyErr_Format(PyExc_TypeError,
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	669 "%.200s.__setstate__ argument should be 3-tuple, got %.200s",
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	670 Py_TYPE(self)->tp_name, Py_TYPE(state)->tp_name);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	671 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	672 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	673 /* Reset the object to its default state. This is only needed to handle
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	674 the case of repeated calls to __setstate__. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	675 self->string_size = 0;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	676 self->pos = 0;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	677
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	678 /* Set the value of the internal buffer. If state[0] does not support the
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	679 buffer protocol, bytesio_write will raise the appropriate TypeError. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	680 result = bytesio_write(self, PyTuple_GET_ITEM(state, 0));
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	681 if (result == NULL)
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	682 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	683 Py_DECREF(result);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	684
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	685 /* Set carefully the position value. Alternatively, we could use the seek
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	686 method instead of modifying self->pos directly to better protect the
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	687 object internal state against errneous (or malicious) inputs. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	688 position_obj = PyTuple_GET_ITEM(state, 1);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	689 if (!PyIndex_Check(position_obj)) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	690 PyErr_Format(PyExc_TypeError,
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	691 "second item of state must be an integer, not %.200s",
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	692 Py_TYPE(position_obj)->tp_name);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	693 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	694 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	695 pos = PyNumber_AsSsize_t(position_obj, PyExc_OverflowError);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	696 if (pos == -1 && PyErr_Occurred())
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	697 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	698 if (pos < 0) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	699 PyErr_SetString(PyExc_ValueError,
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	700 "position value cannot be negative");
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	701 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	702 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	703 self->pos = pos;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	704
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	705 /* Set the dictionary of the instance variables. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	706 dict = PyTuple_GET_ITEM(state, 2);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	707 if (dict != Py_None) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	708 if (!PyDict_Check(dict)) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	709 PyErr_Format(PyExc_TypeError,
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	710 "third item of state should be a dict, got a %.200s",
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	711 Py_TYPE(dict)->tp_name);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	712 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	713 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	714 if (self->dict) {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	715 /* Alternatively, we could replace the internal dictionary
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	716 completely. However, it seems more practical to just update it. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	717 if (PyDict_Update(self->dict, dict) < 0)
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	718 return NULL;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	719 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	720 else {
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	721 Py_INCREF(dict);
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	722 self->dict = dict;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	723 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	724 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	725
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	726 Py_RETURN_NONE;
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	727 }
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	728
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	729 static void
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	730 bytesio_dealloc(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	731 {
56699 2f307c7adb8f Manual py3k backport: [svn r74155] Issue #6242: Fix deallocator of io.StringIO and io.BytesIO Antoine Pitrou <solipsis@pitrou.net> parents: 54717 diff changeset	732 _PyObject_GC_UNTRACK(self);
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	733 if (self->buf != NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	734 PyMem_Free(self->buf);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	735 self->buf = NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	736 }
56699 2f307c7adb8f Manual py3k backport: [svn r74155] Issue #6242: Fix deallocator of io.StringIO and io.BytesIO Antoine Pitrou <solipsis@pitrou.net> parents: 54717 diff changeset	737 Py_CLEAR(self->dict);
2f307c7adb8f Manual py3k backport: [svn r74155] Issue #6242: Fix deallocator of io.StringIO and io.BytesIO Antoine Pitrou <solipsis@pitrou.net> parents: 54717 diff changeset	738 if (self->weakreflist != NULL)
2f307c7adb8f Manual py3k backport: [svn r74155] Issue #6242: Fix deallocator of io.StringIO and io.BytesIO Antoine Pitrou <solipsis@pitrou.net> parents: 54717 diff changeset	739 PyObject_ClearWeakRefs((PyObject *) self);
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	740 Py_TYPE(self)->tp_free(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	741 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	742
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	743 static PyObject *
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	744 bytesio_new(PyTypeObject type, PyObject args, PyObject *kwds)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	745 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	746 bytesio *self;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	747
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	748 assert(type != NULL && type->tp_alloc != NULL);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	749 self = (bytesio *)type->tp_alloc(type, 0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	750 if (self == NULL)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	751 return NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	752
56703 264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	753 /* tp_alloc initializes all the fields to zero. So we don't have to
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	754 initialize them here. */
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	755
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	756 self->buf = (char *)PyMem_Malloc(0);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	757 if (self->buf == NULL) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	758 Py_DECREF(self);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	759 return PyErr_NoMemory();
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	760 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	761
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	762 return (PyObject *)self;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	763 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	764
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	765 static int
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	766 bytesio_init(bytesio self, PyObject args, PyObject *kwds)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	767 {
56704 ae02b168162c Manual py3k backport: [svn r74316] Issue #5449: Fix io.BytesIO to not accept arbitrary keywords Antoine Pitrou <solipsis@pitrou.net> parents: 56703 diff changeset	768 char *kwlist[] = {"initial_bytes", NULL};
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	769 PyObject *initvalue = NULL;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	770
56704 ae02b168162c Manual py3k backport: [svn r74316] Issue #5449: Fix io.BytesIO to not accept arbitrary keywords Antoine Pitrou <solipsis@pitrou.net> parents: 56703 diff changeset	771 if (!PyArg_ParseTupleAndKeywords(args, kwds, "\|O:BytesIO", kwlist,
ae02b168162c Manual py3k backport: [svn r74316] Issue #5449: Fix io.BytesIO to not accept arbitrary keywords Antoine Pitrou <solipsis@pitrou.net> parents: 56703 diff changeset	772 &initvalue))
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	773 return -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	774
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	775 /* In case, __init__ is called multiple times. */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	776 self->string_size = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	777 self->pos = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	778
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	779 if (initvalue && initvalue != Py_None) {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	780 PyObject *res;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	781 res = bytesio_write(self, initvalue);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	782 if (res == NULL)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	783 return -1;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	784 Py_DECREF(res);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	785 self->pos = 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	786 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	787
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	788 return 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	789 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	790
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	791 static int
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	792 bytesio_traverse(bytesio self, visitproc visit, void arg)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	793 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	794 Py_VISIT(self->dict);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	795 return 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	796 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	797
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	798 static int
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	799 bytesio_clear(bytesio *self)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	800 {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	801 Py_CLEAR(self->dict);
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	802 return 0;
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	803 }
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	804
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	805
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	806 static PyGetSetDef bytesio_getsetlist[] = {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	807 {"closed", (getter)bytesio_get_closed, NULL,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	808 "True if the file is closed."},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	809 {NULL}, /* sentinel */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	810 };
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	811
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	812 static struct PyMethodDef bytesio_methods[] = {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	813 {"readable", (PyCFunction)return_true, METH_NOARGS, NULL},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	814 {"seekable", (PyCFunction)return_true, METH_NOARGS, NULL},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	815 {"writable", (PyCFunction)return_true, METH_NOARGS, NULL},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	816 {"close", (PyCFunction)bytesio_close, METH_NOARGS, close_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	817 {"flush", (PyCFunction)bytesio_flush, METH_NOARGS, flush_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	818 {"isatty", (PyCFunction)bytesio_isatty, METH_NOARGS, isatty_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	819 {"tell", (PyCFunction)bytesio_tell, METH_NOARGS, tell_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	820 {"write", (PyCFunction)bytesio_write, METH_O, write_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	821 {"writelines", (PyCFunction)bytesio_writelines, METH_O, writelines_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	822 {"read1", (PyCFunction)bytesio_read1, METH_O, read1_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	823 {"readinto", (PyCFunction)bytesio_readinto, METH_VARARGS, readinto_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	824 {"readline", (PyCFunction)bytesio_readline, METH_VARARGS, readline_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	825 {"readlines", (PyCFunction)bytesio_readlines, METH_VARARGS, readlines_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	826 {"read", (PyCFunction)bytesio_read, METH_VARARGS, read_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	827 {"getvalue", (PyCFunction)bytesio_getvalue, METH_VARARGS, getval_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	828 {"seek", (PyCFunction)bytesio_seek, METH_VARARGS, seek_doc},
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	829 {"truncate", (PyCFunction)bytesio_truncate, METH_VARARGS, truncate_doc},
56703 264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	830 {"__getstate__", (PyCFunction)bytesio_getstate, METH_NOARGS, NULL},
264609fbda48 Manual py3k backport: [svn r74158] Issue #6218: Make io.BytesIO and io.StringIO picklable. Antoine Pitrou <solipsis@pitrou.net> parents: 56699 diff changeset	831 {"__setstate__", (PyCFunction)bytesio_setstate, METH_O, NULL},
54717 760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	832 {NULL, NULL} /* sentinel */
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	833 };
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	834
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	835 PyDoc_STRVAR(bytesio_doc,
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	836 "BytesIO([buffer]) -> object\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	837 "\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	838 "Create a buffered I/O implementation using an in-memory bytes\n"
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	839 "buffer, ready for reading and writing.");
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	840
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	841 PyTypeObject PyBytesIO_Type = {
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	842 PyVarObject_HEAD_INIT(NULL, 0)
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	843 "_io.BytesIO", /tp_name/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	844 sizeof(bytesio), /tp_basicsize/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	845 0, /tp_itemsize/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	846 (destructor)bytesio_dealloc, /tp_dealloc/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	847 0, /tp_print/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	848 0, /tp_getattr/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	849 0, /tp_setattr/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	850 0, /tp_reserved/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	851 0, /tp_repr/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	852 0, /tp_as_number/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	853 0, /tp_as_sequence/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	854 0, /tp_as_mapping/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	855 0, /tp_hash/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	856 0, /tp_call/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	857 0, /tp_str/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	858 0, /tp_getattro/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	859 0, /tp_setattro/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	860 0, /tp_as_buffer/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	861 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_BASETYPE \|
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	862 Py_TPFLAGS_HAVE_GC, /tp_flags/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	863 bytesio_doc, /tp_doc/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	864 (traverseproc)bytesio_traverse, /tp_traverse/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	865 (inquiry)bytesio_clear, /tp_clear/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	866 0, /tp_richcompare/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	867 offsetof(bytesio, weakreflist), /tp_weaklistoffset/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	868 PyObject_SelfIter, /tp_iter/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	869 (iternextfunc)bytesio_iternext, /tp_iternext/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	870 bytesio_methods, /tp_methods/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	871 0, /tp_members/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	872 bytesio_getsetlist, /tp_getset/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	873 0, /tp_base/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	874 0, /tp_dict/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	875 0, /tp_descr_get/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	876 0, /tp_descr_set/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	877 offsetof(bytesio, dict), /tp_dictoffset/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	878 (initproc)bytesio_init, /tp_init/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	879 0, /tp_alloc/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	880 bytesio_new, /tp_new/
760a710eb6c1 Issue #6215: backport the 3.1 io lib Antoine Pitrou <solipsis@pitrou.net> parents: diff changeset	881 };

Mercurial > cpython-lru_cache-weakref

annotate Modules/_io/bytesio.c @ 58765:2ba7677bfa95 legacy-trunk