cpython-lru_cache-weakref: Modules/zlibmodule.c annotate

annotate Modules/zlibmodule.c @ 6719:faebc1940432 legacy-trunk

Understand -Xlinker option.

author	Guido van Rossum <guido@python.org>
date	Tue, 02 Dec 1997 20:38:11 +0000
parents	2c29b8982643
children	2c49c02cf747

rev	line source
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	1 /* zlibmodule.c -- gzip-compatible data compression */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	2
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	3 #include "Python.h"
beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	4 #include "zlib.h"
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	5
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	6 /* The following parameters are copied from zutil.h, version 0.95 */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	7 #define DEFLATED 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	8 #if MAX_MEM_LEVEL >= 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	9 # define DEF_MEM_LEVEL 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	10 #else
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	11 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	12 #endif
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	13 #define DEF_WBITS MAX_WBITS
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	14
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	15 /* The output buffer will be increased in chunks of ADDCHUNK bytes. */
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	16 #define DEFAULTALLOC 16*1024
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	17 #define PyInit_zlib initzlib
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	18
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	19 staticforward PyTypeObject Comptype;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	20 staticforward PyTypeObject Decomptype;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	21
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	22 static PyObject *ZlibError;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	23
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	24 typedef struct
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	25 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	26 PyObject_HEAD
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	27 z_stream zst;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	28 } compobject;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	29
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	30 static char compressobj__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	31 "compressobj() -- Return a compressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	32 "compressobj(level) -- Return a compressor object, using the given compression level.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	33 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	34
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	35 static char decompressobj__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	36 "decompressobj() -- Return a decompressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	37 "decompressobj(wbits) -- Return a decompressor object, setting the window buffer size to wbits.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	38 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	39
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	40 static compobject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	41 newcompobject(type)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	42 PyTypeObject *type;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	43 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	44 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	45 self = PyObject_NEW(compobject, type);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	46 if (self == NULL)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	47 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	48 return self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	49 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	50
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	51 static char compress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	52 "compress(string) -- Compress string using the default compression level, "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	53 "returning a string containing compressed data.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	54 "compress(string, level) -- Compress string, using the chosen compression "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	55 "level (from 1 to 9). Return a string containing the compressed data.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	56 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	57
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	58 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	59 PyZlib_compress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	60 PyObject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	61 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	62 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	63 PyObject *ReturnVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	64 Byte input, output;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	65 int length, level=Z_DEFAULT_COMPRESSION, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	66 z_stream zst;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	67
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	68 if (!PyArg_ParseTuple(args, "s#\|i", &input, &length, &level))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	69 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	70 zst.avail_out = length + length/1000 + 12 + 1;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	71 output=(Byte*)malloc(zst.avail_out);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	72 if (output==NULL)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	73 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	74 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	75 "Can't allocate memory to compress data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	76 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	77 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	78 zst.zalloc=(alloc_func)NULL;
beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	79 zst.zfree=(free_func)Z_NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	80 zst.next_out=(Byte *)output;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	81 zst.next_in =(Byte *)input;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	82 zst.avail_in=length;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	83 err=deflateInit(&zst, level);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	84 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	85 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	86 case(Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	87 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	88 case(Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	89 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	90 "Out of memory while compressing data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	91 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	92 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	93 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	94 case(Z_STREAM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	95 PyErr_SetString(ZlibError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	96 "Bad compression level");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	97 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	98 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	99 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	100 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	101 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	102 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	103 PyErr_Format(ZlibError, "Error %i while compressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	104 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	105 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	106 PyErr_Format(ZlibError, "Error %i while compressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	107 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	108 deflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	109 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	110 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	111 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	112 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	113 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	114
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	115 err=deflate(&zst, Z_FINISH);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	116 switch(err)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	117 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	118 case(Z_STREAM_END):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	119 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	120 /* Are there other errors to be trapped here? */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	121 default:
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	122 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	123 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	124 PyErr_Format(ZlibError, "Error %i while compressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	125 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	126 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	127 PyErr_Format(ZlibError, "Error %i while compressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	128 err, zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	129 deflateEnd(&zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	130 free(output);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	131 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	132 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	133 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	134 err=deflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	135 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	136 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	137 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	138 PyErr_Format(ZlibError, "Error %i while finishing compression",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	139 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	140 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	141 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	142 "Error %i while finishing compression: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	143 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	144 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	145 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	146 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	147 ReturnVal=PyString_FromStringAndSize((char *)output, zst.total_out);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	148 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	149 return ReturnVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	150 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	151
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	152 static char decompress__doc__[] =
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	153 "decompress(string) -- Decompress the data in string, returning a string containing the decompressed data.\n"
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	154 "decompress(string, wbits) -- Decompress the data in string with a window buffer size of wbits.\n"
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	155 "decompress(string, wbits, bufsize) -- Decompress the data in string with a window buffer size of wbits and an initial output buffer size of bufsize.\n"
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	156 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	157
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	158 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	159 PyZlib_decompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	160 PyObject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	161 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	162 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	163 PyObject *result_str;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	164 Byte *input;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	165 int length, err;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	166 int wsize=DEF_WBITS, r_strlen=DEFAULTALLOC;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	167 z_stream zst;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	168 if (!PyArg_ParseTuple(args, "s#\|ii", &input, &length, &wsize, &r_strlen))
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	169 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	170
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	171 if (r_strlen <= 0)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	172 r_strlen = 1;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	173
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	174 zst.avail_in=length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	175 zst.avail_out=r_strlen;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	176 if (!(result_str = PyString_FromStringAndSize(NULL, r_strlen)))
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	177 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	178 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	179 "Can't allocate memory to decompress data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	180 return NULL;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	181 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	182 zst.zalloc=(alloc_func)NULL;
beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	183 zst.zfree=(free_func)Z_NULL;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	184 zst.next_out=(Byte *)PyString_AsString(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	185 zst.next_in =(Byte *)input;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	186 err=inflateInit2(&zst, wsize);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	187 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	188 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	189 case(Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	190 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	191 case(Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	192 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	193 "Out of memory while decompressing data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	194 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	195 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	196 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	197 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	198 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	199 PyErr_Format(ZlibError, "Error %i preparing to decompress data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	200 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	201 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	202 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	203 "Error %i while preparing to decompress data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	204 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	205 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	206 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	207 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	208 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	209 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	210 do
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	211 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	212 err=inflate(&zst, Z_FINISH);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	213 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	214 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	215 case(Z_STREAM_END):
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	216 break;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	217 case(Z_OK):
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	218 /* need more memory */
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	219 if (_PyString_Resize(&result_str, r_strlen << 1) == -1)
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	220 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	221 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	222 "Out of memory while decompressing data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	223 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	224 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	225 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	226 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	227 zst.next_out = (unsigned char *)PyString_AsString(result_str) + r_strlen;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	228 zst.avail_out=r_strlen;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	229 r_strlen = r_strlen << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	230 break;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	231 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	232 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	233 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	234 PyErr_Format(ZlibError, "Error %i while decompressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	235 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	236 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	237 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	238 "Error %i while decompressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	239 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	240 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	241 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	242 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	243 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	244 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	245 } while(err!=Z_STREAM_END);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	246
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	247 err=inflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	248 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	249 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	250 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	251 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	252 "Error %i while finishing data decompression",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	253 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	254 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	255 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	256 "Error %i while finishing data decompression: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	257 err, zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	258 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	259 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	260 }
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	261 _PyString_Resize(&result_str, zst.total_out);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	262 return result_str;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	263 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	264
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	265 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	266 PyZlib_compressobj(selfptr, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	267 PyObject *selfptr;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	268 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	269 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	270 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	271 int level=Z_DEFAULT_COMPRESSION, method=DEFLATED;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	272 int wbits=MAX_WBITS, memLevel=DEF_MEM_LEVEL, strategy=0, err;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	273
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	274 if (!PyArg_ParseTuple(args, "\|iiiii", &level, &method, &wbits,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	275 &memLevel, &strategy))
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	276 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	277
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	278 self = newcompobject(&Comptype);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	279 if (self==NULL) return(NULL);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	280 self->zst.zalloc = (alloc_func)NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	281 self->zst.zfree = (free_func)Z_NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	282 err = deflateInit2(&self->zst, level, method, wbits, memLevel, strategy);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	283 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	284 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	285 case (Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	286 return (PyObject*)self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	287 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	288 case (Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	289 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	290 "Can't allocate memory for compression object");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	291 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	292 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	293 case(Z_STREAM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	294 PyErr_SetString(PyExc_ValueError,
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	295 "Invalid initialization option");
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	296 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	297 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	298 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	299 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	300 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	301 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	302 "Error %i while creating compression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	303 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	304 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	305 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	306 "Error %i while creating compression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	307 err, self->zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	308 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	309 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	310 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	311 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	312 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	313
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	314 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	315 PyZlib_decompressobj(selfptr, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	316 PyObject *selfptr;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	317 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	318 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	319 int wbits=DEF_WBITS, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	320 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	321 if (!PyArg_ParseTuple(args, "\|i", &wbits))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	322 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	323 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	324 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	325 self=newcompobject(&Decomptype);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	326 if (self==NULL) return(NULL);
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	327 self->zst.zalloc=(alloc_func)NULL;
beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	328 self->zst.zfree=(free_func)Z_NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	329 err=inflateInit2(&self->zst, wbits);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	330 switch(err)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	331 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	332 case (Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	333 return (PyObject*)self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	334 break;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	335 case(Z_STREAM_ERROR):
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	336 PyErr_SetString(PyExc_ValueError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	337 "Invalid initialization option");
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	338 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	339 break;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	340 case (Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	341 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	342 "Can't allocate memory for decompression object");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	343 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	344 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	345 default:
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	346 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	347 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	348 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	349 "Error %i while creating decompression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	350 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	351 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	352 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	353 "Error %i while creating decompression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	354 err, self->zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	355 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	356 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	357 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	358 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	359 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	360
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	361 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	362 Comp_dealloc(self)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	363 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	364 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	365 deflateEnd(&self->zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	366 PyMem_DEL(self);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	367 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	368
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	369 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	370 Decomp_dealloc(self)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	371 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	372 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	373 inflateEnd(&self->zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	374 PyMem_DEL(self);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	375 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	376
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	377 static char comp_compress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	378 "compress(data) -- Return a string containing a compressed version of the data.\n\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	379 "After calling this function, some of the input data may still\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	380 "be stored in internal buffers for later processing.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	381 "Call the flush() method to clear these buffers."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	382 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	383
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	384
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	385 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	386 PyZlib_objcompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	387 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	388 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	389 {
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	390 int err = Z_OK, inplen;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	391 int length = DEFAULTALLOC;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	392 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	393 Byte *input;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	394 unsigned long start_total_out;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	395
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	396 if (!PyArg_ParseTuple(args, "s#", &input, &inplen))
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	397 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	398 self->zst.avail_in = inplen;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	399 self->zst.next_in = input;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	400 if (!(RetVal = PyString_FromStringAndSize(NULL, length))) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	401 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	402 "Can't allocate memory to compress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	403 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	404 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	405 start_total_out = self->zst.total_out;
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	406 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	407 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	408 while (self->zst.avail_in != 0 && err == Z_OK)
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	409 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	410 err = deflate(&(self->zst), Z_NO_FLUSH);
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	411 if (self->zst.avail_out <= 0) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	412 if (_PyString_Resize(&RetVal, length << 1) == -1) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	413 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	414 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	415 Py_DECREF(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	416 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	417 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	418 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	419 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	420 length = length << 1;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	421 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	422 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	423 if (err != Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	424 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	425 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	426 PyErr_Format(ZlibError, "Error %i while compressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	427 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	428 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	429 PyErr_Format(ZlibError, "Error %i while compressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	430 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	431 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	432 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	433 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	434 _PyString_Resize(&RetVal, self->zst.total_out - start_total_out);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	435 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	436 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	437
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	438 static char decomp_decompress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	439 "decompress(data) -- Return a string containing the decompressed version of the data.\n\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	440 "After calling this function, some of the input data may still\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	441 "be stored in internal buffers for later processing.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	442 "Call the flush() method to clear these buffers."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	443 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	444
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	445 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	446 PyZlib_objdecompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	447 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	448 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	449 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	450 int length, err, inplen;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	451 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	452 Byte *input;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	453 unsigned long start_total_out;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	454
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	455 if (!PyArg_ParseTuple(args, "s#", &input, &inplen))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	456 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	457 start_total_out = self->zst.total_out;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	458 RetVal = PyString_FromStringAndSize(NULL, DEFAULTALLOC);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	459 self->zst.avail_in = inplen;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	460 self->zst.next_in = input;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	461 self->zst.avail_out = length = DEFAULTALLOC;
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	462 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	463 err = Z_OK;
6003 508921950f2c Must update the available space in the output buffer after Jeremy Hylton <jeremy@alum.mit.edu> parents: 5723 diff changeset	464
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	465 while (self->zst.avail_in != 0 && err == Z_OK)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	466 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	467 err = inflate(&(self->zst), Z_NO_FLUSH);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	468 if (err == Z_OK && self->zst.avail_out <= 0)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	469 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	470 if (_PyString_Resize(&RetVal, length << 1) == -1)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	471 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	472 PyErr_SetString(PyExc_MemoryError,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	473 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	474 Py_DECREF(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	475 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	476 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	477 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	478 self->zst.avail_out = length;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	479 length = length << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	480 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	481 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	482
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	483 if (err != Z_OK && err != Z_STREAM_END)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	484 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	485 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	486 PyErr_Format(ZlibError, "Error %i while decompressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	487 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	488 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	489 PyErr_Format(ZlibError, "Error %i while decompressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	490 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	491 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	492 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	493 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	494 _PyString_Resize(&RetVal, self->zst.total_out - start_total_out);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	495 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	496 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	497
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	498 static char comp_flush__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	499 "flush() -- Return a string containing any remaining compressed data. "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	500 "The compressor object can no longer be used after this call."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	501 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	502
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	503 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	504 PyZlib_flush(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	505 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	506 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	507 {
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	508 int length=DEFAULTALLOC, err = Z_OK;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	509 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	510
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	511 if (!PyArg_NoArgs(args))
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	512 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	513 self->zst.avail_in = 0;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	514 self->zst.next_in = Z_NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	515 if (!(RetVal = PyString_FromStringAndSize(NULL, length))) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	516 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	517 "Can't allocate memory to compress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	518 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	519 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	520 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	521 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	522 while (err == Z_OK)
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	523 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	524 err = deflate(&(self->zst), Z_FINISH);
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	525 if (self->zst.avail_out <= 0) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	526 if (_PyString_Resize(&RetVal, length << 1) == -1) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	527 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	528 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	529 Py_DECREF(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	530 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	531 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	532 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	533 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	534 length = length << 1;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	535 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	536 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	537 if (err!=Z_STREAM_END) {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	538 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	539 PyErr_Format(ZlibError, "Error %i while compressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	540 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	541 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	542 PyErr_Format(ZlibError, "Error %i while compressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	543 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	544 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	545 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	546 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	547 err=deflateEnd(&(self->zst));
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	548 if (err!=Z_OK) {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	549 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	550 PyErr_Format(ZlibError, "Error %i while flushing compression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	551 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	552 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	553 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	554 "Error %i while flushing compression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	555 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	556 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	557 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	558 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	559 _PyString_Resize(&RetVal,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	560 (char *)self->zst.next_out - PyString_AsString(RetVal));
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	561 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	562 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	563
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	564 static char decomp_flush__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	565 "flush() -- Return a string containing any remaining decompressed data. "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	566 "The decompressor object can no longer be used after this call."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	567 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	568
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	569 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	570 PyZlib_unflush(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	571 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	572 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	573 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	574 int length=0, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	575 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	576
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	577 if (!PyArg_NoArgs(args))
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	578 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	579 if (!(RetVal = PyString_FromStringAndSize(NULL, DEFAULTALLOC)))
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	580 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	581 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	582 "Can't allocate memory to decompress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	583 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	584 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	585 self->zst.avail_in=0;
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	586 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	587 length = self->zst.avail_out = DEFAULTALLOC;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	588
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	589 err = Z_OK;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	590 while (err == Z_OK)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	591 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	592 err = inflate(&(self->zst), Z_FINISH);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	593 if (err == Z_OK && self->zst.avail_out == 0)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	594 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	595 if (_PyString_Resize(&RetVal, length << 1) == -1)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	596 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	597 PyErr_SetString(PyExc_MemoryError,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	598 "Can't allocate memory to decompress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	599 Py_DECREF(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	600 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	601 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	602 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	603 self->zst.avail_out = length;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	604 length = length << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	605 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	606 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	607 if (err!=Z_STREAM_END)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	608 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	609 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	610 PyErr_Format(ZlibError, "Error %i while decompressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	611 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	612 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	613 PyErr_Format(ZlibError, "Error %i while decompressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	614 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	615 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	616 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	617 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	618 err=inflateEnd(&(self->zst));
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	619 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	620 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	621 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	622 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	623 "Error %i while flushing decompression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	624 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	625 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	626 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	627 "Error %i while flushing decompression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	628 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	629 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	630 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	631 }
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	632 _PyString_Resize(&RetVal,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	633 (char *)self->zst.next_out - PyString_AsString(RetVal));
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	634 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	635 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	636
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	637 static PyMethodDef comp_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	638 {
6184 11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	639 {"compress", (binaryfunc)PyZlib_objcompress, 1, comp_compress__doc__},
11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	640 {"flush", (binaryfunc)PyZlib_flush, 0, comp_flush__doc__},
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	641 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	642 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	643
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	644 static PyMethodDef Decomp_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	645 {
6184 11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	646 {"decompress", (binaryfunc)PyZlib_objdecompress, 1, decomp_decompress__doc__},
11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	647 {"flush", (binaryfunc)PyZlib_unflush, 0, decomp_flush__doc__},
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	648 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	649 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	650
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	651 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	652 Comp_getattr(self, name)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	653 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	654 char *name;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	655 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	656 return Py_FindMethod(comp_methods, (PyObject *)self, name);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	657 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	658
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	659 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	660 Decomp_getattr(self, name)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	661 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	662 char *name;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	663 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	664 return Py_FindMethod(Decomp_methods, (PyObject *)self, name);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	665 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	666
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	667 static char adler32__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	668 "adler32(string) -- Compute an Adler-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	669 "a default starting value, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	670 "adler32(string, value) -- Compute an Adler-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	671 "the starting value provided, and returning an integer value\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	672 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	673
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	674 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	675 PyZlib_adler32(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	676 PyObject self, args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	677 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	678 uLong adler32val=adler32(0L, Z_NULL, 0);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	679 Byte *buf;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	680 int len;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	681
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	682 if (!PyArg_ParseTuple(args, "s#\|l", &buf, &len, &adler32val))
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	683 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	684 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	685 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	686 adler32val = adler32(adler32val, buf, len);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	687 return PyInt_FromLong(adler32val);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	688 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	689
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	690 static char crc32__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	691 "crc32(string) -- Compute a CRC-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	692 "a default starting value, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	693 "crc32(string, value) -- Compute a CRC-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	694 "the starting value provided, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	695 ;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	696
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	697 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	698 PyZlib_crc32(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	699 PyObject self, args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	700 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	701 uLong crc32val=crc32(0L, Z_NULL, 0);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	702 Byte *buf;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	703 int len;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	704 if (!PyArg_ParseTuple(args, "s#\|l", &buf, &len, &crc32val))
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	705 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	706 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	707 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	708 crc32val = crc32(crc32val, buf, len);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	709 return PyInt_FromLong(crc32val);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	710 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	711
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	712
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	713 static PyMethodDef zlib_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	714 {
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	715 {"adler32", (PyCFunction)PyZlib_adler32, 1, adler32__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	716 {"compress", (PyCFunction)PyZlib_compress, 1, compress__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	717 {"compressobj", (PyCFunction)PyZlib_compressobj, 1, compressobj__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	718 {"crc32", (PyCFunction)PyZlib_crc32, 1, crc32__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	719 {"decompress", (PyCFunction)PyZlib_decompress, 1, decompress__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	720 {"decompressobj", (PyCFunction)PyZlib_decompressobj, 1, decompressobj__doc__},
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	721 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	722 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	723
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	724 statichere PyTypeObject Comptype = {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	725 PyObject_HEAD_INIT(&PyType_Type)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	726 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	727 "Compress",
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	728 sizeof(compobject),
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	729 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	730 (destructor)Comp_dealloc, /tp_dealloc/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	731 0, /tp_print/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	732 (getattrfunc)Comp_getattr, /tp_getattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	733 0, /tp_setattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	734 0, /tp_compare/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	735 0, /tp_repr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	736 0, /tp_as_number/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	737 0, /tp_as_sequence/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	738 0, /tp_as_mapping/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	739 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	740
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	741 statichere PyTypeObject Decomptype = {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	742 PyObject_HEAD_INIT(&PyType_Type)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	743 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	744 "Decompress",
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	745 sizeof(compobject),
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	746 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	747 (destructor)Decomp_dealloc, /tp_dealloc/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	748 0, /tp_print/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	749 (getattrfunc)Decomp_getattr, /tp_getattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	750 0, /tp_setattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	751 0, /tp_compare/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	752 0, /tp_repr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	753 0, /tp_as_number/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	754 0, /tp_as_sequence/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	755 0, /tp_as_mapping/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	756 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	757
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	758 /* The following insint() routine was blatantly ripped off from
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	759 socketmodule.c */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	760
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	761 /* Convenience routine to export an integer value.
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	762 For simplicity, errors (which are unlikely anyway) are ignored. */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	763 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	764 insint(d, name, value)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	765 PyObject *d;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	766 char *name;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	767 int value;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	768 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	769 PyObject *v = PyInt_FromLong((long) value);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	770 if (v == NULL) {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	771 /* Don't bother reporting this error */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	772 PyErr_Clear();
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	773 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	774 else {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	775 PyDict_SetItemString(d, name, v);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	776 Py_DECREF(v);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	777 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	778 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	779
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	780 static char zlib_module_documentation[]=
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	781 "The functions in this module allow compression and decompression "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	782 "using the zlib library, which is based on GNU zip. \n\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	783 "adler32(string) -- Compute an Adler-32 checksum.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	784 "adler32(string, start) -- Compute an Adler-32 checksum using a given starting value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	785 "compress(string) -- Compress a string.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	786 "compress(string, level) -- Compress a string with the given level of compression (1--9).\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	787 "compressobj([level]) -- Return a compressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	788 "crc32(string) -- Compute a CRC-32 checksum.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	789 "crc32(string, start) -- Compute a CRC-32 checksum using a given starting value.\n"
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	790 "decompress(string,[wbites],[bufsize]) -- Decompresses a compressed string.\n"
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	791 "decompressobj([wbits]) -- Return a decompressor object (wbits=window buffer size).\n\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	792 "Compressor objects support compress() and flush() methods; decompressor \n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	793 "objects support decompress() and flush()."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	794 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	795
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	796 void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	797 PyInit_zlib()
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	798 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	799 PyObject m, d, *ver;
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	800 m = Py_InitModule4("zlib", zlib_methods,
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	801 zlib_module_documentation,
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	802 (PyObject*)NULL,PYTHON_API_VERSION);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	803 d = PyModule_GetDict(m);
6367 2c29b8982643 Apply two changes, systematically: Guido van Rossum <guido@python.org> parents: 6236 diff changeset	804 ZlibError = PyErr_NewException("zlib.error", NULL, NULL);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	805 PyDict_SetItemString(d, "error", ZlibError);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	806
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	807 insint(d, "MAX_WBITS", MAX_WBITS);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	808 insint(d, "DEFLATED", DEFLATED);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	809 insint(d, "DEF_MEM_LEVEL", DEF_MEM_LEVEL);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	810 insint(d, "Z_BEST_SPEED", Z_BEST_SPEED);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	811 insint(d, "Z_BEST_COMPRESSION", Z_BEST_COMPRESSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	812 insint(d, "Z_DEFAULT_COMPRESSION", Z_DEFAULT_COMPRESSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	813 insint(d, "Z_FILTERED", Z_FILTERED);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	814 insint(d, "Z_HUFFMAN_ONLY", Z_HUFFMAN_ONLY);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	815 insint(d, "Z_DEFAULT_STRATEGY", Z_DEFAULT_STRATEGY);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	816 ver = PyString_FromString(ZLIB_VERSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	817 PyDict_SetItemString(d, "ZLIB_VERSION", ver);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	818 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/zlibmodule.c @ 6719:faebc1940432 legacy-trunk