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

annotate Modules/zlibmodule.c @ 8831:00a6bb65ff29 legacy-trunk

Getting rid of this ancient stuff.

author	Guido van Rossum <guido@python.org>
date	Wed, 05 Aug 1998 21:10:09 +0000
parents	dcec983576d5
children	38023a425e48

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 */
8276 7076531efb8f Added URLs for zlib's home page and the Windows DLL's home page . Guido van Rossum <guido@python.org> parents: 8128 diff changeset	2 /* See http://www.cdrom.com/pub/infozip/zlib/ */
7076531efb8f Added URLs for zlib's home page and the Windows DLL's home page . Guido van Rossum <guido@python.org> parents: 8128 diff changeset	3 /* See http://www.winimage.com/zLibDll for Windows */
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	4
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	5 #include "Python.h"
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	6 #ifdef MS_WIN32
2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	7 #define ZLIB_DLL
2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	8 #endif
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	9 #include "zlib.h"
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	10
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	11 /* 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	12 #define DEFLATED 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	13 #if MAX_MEM_LEVEL >= 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	14 # define DEF_MEM_LEVEL 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	15 #else
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	16 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	17 #endif
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	18 #define DEF_WBITS MAX_WBITS
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	19
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	20 /* 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	21 #define DEFAULTALLOC 16*1024
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	22 #define PyInit_zlib initzlib
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 staticforward PyTypeObject Comptype;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	25 staticforward PyTypeObject Decomptype;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	26
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	27 static PyObject *ZlibError;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	28
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	29 typedef struct
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	30 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	31 PyObject_HEAD
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	32 z_stream zst;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	33 } compobject;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	34
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	35 static char compressobj__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	36 "compressobj() -- Return a compressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	37 "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	38 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	39
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	40 static char decompressobj__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	41 "decompressobj() -- Return a decompressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	42 "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	43 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	44
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	45 static compobject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	46 newcompobject(type)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	47 PyTypeObject *type;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	48 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	49 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	50 self = PyObject_NEW(compobject, type);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	51 if (self == NULL)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	52 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	53 return self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	54 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	55
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	56 static char compress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	57 "compress(string) -- Compress string using the default compression level, "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	58 "returning a string containing compressed data.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	59 "compress(string, level) -- Compress string, using the chosen compression "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	60 "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	61 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	62
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	63 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	64 PyZlib_compress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	65 PyObject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	66 PyObject *args;
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 PyObject *ReturnVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	69 Byte input, output;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	70 int length, level=Z_DEFAULT_COMPRESSION, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	71 z_stream zst;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	72
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	73 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	74 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	75 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	76 output=(Byte*)malloc(zst.avail_out);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	77 if (output==NULL)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	78 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	79 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	80 "Can't allocate memory to compress data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	81 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	82 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	83 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	84 zst.zfree=(free_func)Z_NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	85 zst.next_out=(Byte *)output;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	86 zst.next_in =(Byte *)input;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	87 zst.avail_in=length;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	88 err=deflateInit(&zst, level);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	89 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	90 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	91 case(Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	92 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	93 case(Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	94 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	95 "Out of memory while compressing data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	96 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	97 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	98 case(Z_STREAM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	99 PyErr_SetString(ZlibError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	100 "Bad compression level");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	101 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	102 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	103 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	104 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	105 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	106 PyErr_Format(ZlibError, "Error %i while compressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	107 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	108 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	109 PyErr_Format(ZlibError, "Error %i while compressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	110 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	111 deflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	112 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	113 return NULL;
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 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	116
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	117 err=deflate(&zst, Z_FINISH);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	118 switch(err)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	119 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	120 case(Z_STREAM_END):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	121 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	122 /* Are there other errors to be trapped here? */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	123 default:
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	124 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	125 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	126 PyErr_Format(ZlibError, "Error %i while compressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	127 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	128 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	129 PyErr_Format(ZlibError, "Error %i while compressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	130 err, zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	131 deflateEnd(&zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	132 free(output);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	133 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	134 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	135 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	136 err=deflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	137 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	138 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	139 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	140 PyErr_Format(ZlibError, "Error %i while finishing compression",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	141 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	142 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	143 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	144 "Error %i while finishing compression: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	145 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	146 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	147 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	148 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	149 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	150 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	151 return ReturnVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	152 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	153
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	154 static char decompress__doc__[] =
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	155 "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	156 "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	157 "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	158 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	159
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	160 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	161 PyZlib_decompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	162 PyObject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	163 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	164 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	165 PyObject *result_str;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	166 Byte *input;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	167 int length, err;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	168 int wsize=DEF_WBITS, r_strlen=DEFAULTALLOC;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	169 z_stream zst;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	170 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	171 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	172
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	173 if (r_strlen <= 0)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	174 r_strlen = 1;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	175
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	176 zst.avail_in=length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	177 zst.avail_out=r_strlen;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	178 if (!(result_str = PyString_FromStringAndSize(NULL, r_strlen)))
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	179 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	180 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	181 "Can't allocate memory to decompress data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	182 return NULL;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	183 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	184 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	185 zst.zfree=(free_func)Z_NULL;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	186 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	187 zst.next_in =(Byte *)input;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	188 err=inflateInit2(&zst, wsize);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	189 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	190 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	191 case(Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	192 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	193 case(Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	194 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	195 "Out of memory while decompressing data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	196 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	197 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	198 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	199 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	200 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	201 PyErr_Format(ZlibError, "Error %i preparing to decompress data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	202 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	203 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	204 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	205 "Error %i while preparing to decompress data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	206 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	207 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	208 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	209 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	210 }
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 do
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	213 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	214 err=inflate(&zst, Z_FINISH);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	215 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	216 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	217 case(Z_STREAM_END):
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	218 break;
8128 fdba6397b729 Tiny patch for zlib 1.1.2 Guido van Rossum <guido@python.org> parents: 6911 diff changeset	219 case(Z_BUF_ERROR):
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	220 case(Z_OK):
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	221 /* need more memory */
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	222 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	223 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	224 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	225 "Out of memory while decompressing data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	226 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	227 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	228 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	229 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	230 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	231 zst.avail_out=r_strlen;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	232 r_strlen = r_strlen << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	233 break;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	234 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	235 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	236 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	237 PyErr_Format(ZlibError, "Error %i while decompressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	238 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	239 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	240 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	241 "Error %i while decompressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	242 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	243 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	244 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	245 return NULL;
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 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	248 } while(err!=Z_STREAM_END);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	249
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	250 err=inflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	251 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	252 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	253 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	254 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	255 "Error %i while finishing data decompression",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	256 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	257 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	258 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	259 "Error %i while finishing data decompression: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	260 err, zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	261 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	262 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	263 }
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	264 _PyString_Resize(&result_str, zst.total_out);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	265 return result_str;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	266 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	267
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	268 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	269 PyZlib_compressobj(selfptr, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	270 PyObject *selfptr;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	271 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	272 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	273 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	274 int level=Z_DEFAULT_COMPRESSION, method=DEFLATED;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	275 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	276
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	277 if (!PyArg_ParseTuple(args, "\|iiiii", &level, &method, &wbits,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	278 &memLevel, &strategy))
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	279 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	280
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	281 self = newcompobject(&Comptype);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	282 if (self==NULL) return(NULL);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	283 self->zst.zalloc = (alloc_func)NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	284 self->zst.zfree = (free_func)Z_NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	285 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	286 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	287 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	288 case (Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	289 return (PyObject*)self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	290 case (Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	291 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	292 "Can't allocate memory for compression object");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	293 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	294 case(Z_STREAM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	295 PyErr_SetString(PyExc_ValueError,
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	296 "Invalid initialization option");
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	297 return NULL;
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 }
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 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	314 PyZlib_decompressobj(selfptr, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	315 PyObject *selfptr;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	316 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	317 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	318 int wbits=DEF_WBITS, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	319 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	320 if (!PyArg_ParseTuple(args, "\|i", &wbits))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	321 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	322 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	323 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	324 self=newcompobject(&Decomptype);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	325 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	326 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	327 self->zst.zfree=(free_func)Z_NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	328 err=inflateInit2(&self->zst, wbits);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	329 switch(err)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	330 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	331 case (Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	332 return (PyObject*)self;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	333 case(Z_STREAM_ERROR):
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	334 PyErr_SetString(PyExc_ValueError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	335 "Invalid initialization option");
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	336 return NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	337 case (Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	338 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	339 "Can't allocate memory for decompression object");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	340 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	341 default:
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	342 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	343 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	344 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	345 "Error %i while creating decompression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	346 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	347 else
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: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	350 err, self->zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	351 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	352 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	353 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	354 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	355
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	356 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	357 Comp_dealloc(self)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	358 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	359 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	360 deflateEnd(&self->zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	361 PyMem_DEL(self);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	362 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	363
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	364 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	365 Decomp_dealloc(self)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	366 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	367 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	368 inflateEnd(&self->zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	369 PyMem_DEL(self);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	370 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	371
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	372 static char comp_compress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	373 "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	374 "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	375 "be stored in internal buffers for later processing.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	376 "Call the flush() method to clear these buffers."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	377 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	378
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	379
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	380 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	381 PyZlib_objcompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	382 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	383 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	384 {
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	385 int err = Z_OK, inplen;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	386 int length = DEFAULTALLOC;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	387 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	388 Byte *input;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	389 unsigned long start_total_out;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	390
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	391 if (!PyArg_ParseTuple(args, "s#", &input, &inplen))
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	392 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	393 self->zst.avail_in = inplen;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	394 self->zst.next_in = input;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	395 if (!(RetVal = PyString_FromStringAndSize(NULL, length))) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	396 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	397 "Can't allocate memory to compress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	398 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	399 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	400 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	401 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	402 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	403 while (self->zst.avail_in != 0 && err == Z_OK)
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	404 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	405 err = deflate(&(self->zst), Z_NO_FLUSH);
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	406 if (self->zst.avail_out <= 0) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	407 if (_PyString_Resize(&RetVal, length << 1) == -1) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	408 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	409 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	410 Py_DECREF(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	411 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	412 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	413 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	414 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	415 length = length << 1;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	416 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	417 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	418 if (err != Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	419 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	420 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	421 PyErr_Format(ZlibError, "Error %i while compressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	422 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	423 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	424 PyErr_Format(ZlibError, "Error %i while compressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	425 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	426 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	427 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	428 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	429 _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	430 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	431 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	432
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	433 static char decomp_decompress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	434 "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	435 "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	436 "be stored in internal buffers for later processing.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	437 "Call the flush() method to clear these buffers."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	438 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	439
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	440 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	441 PyZlib_objdecompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	442 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	443 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	444 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	445 int length, err, inplen;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	446 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	447 Byte *input;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	448 unsigned long start_total_out;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	449
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	450 if (!PyArg_ParseTuple(args, "s#", &input, &inplen))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	451 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	452 start_total_out = self->zst.total_out;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	453 RetVal = PyString_FromStringAndSize(NULL, DEFAULTALLOC);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	454 self->zst.avail_in = inplen;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	455 self->zst.next_in = input;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	456 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	457 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	458 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	459
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	460 while (self->zst.avail_in != 0 && err == Z_OK)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	461 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	462 err = inflate(&(self->zst), Z_NO_FLUSH);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	463 if (err == Z_OK && self->zst.avail_out <= 0)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	464 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	465 if (_PyString_Resize(&RetVal, length << 1) == -1)
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 PyErr_SetString(PyExc_MemoryError,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	468 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	469 Py_DECREF(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	470 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	471 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	472 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	473 self->zst.avail_out = length;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	474 length = length << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	475 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	476 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	477
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	478 if (err != Z_OK && err != Z_STREAM_END)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	479 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	480 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	481 PyErr_Format(ZlibError, "Error %i while decompressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	482 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	483 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	484 PyErr_Format(ZlibError, "Error %i while decompressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	485 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	486 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	487 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	488 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	489 _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	490 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	491 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	492
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	493 static char comp_flush__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	494 "flush() -- Return a string containing any remaining compressed data. "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	495 "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	496 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	497
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	498 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	499 PyZlib_flush(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	500 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	501 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	502 {
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	503 int length=DEFAULTALLOC, err = Z_OK;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	504 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	505
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	506 if (!PyArg_NoArgs(args))
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	507 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	508 self->zst.avail_in = 0;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	509 self->zst.next_in = Z_NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	510 if (!(RetVal = PyString_FromStringAndSize(NULL, length))) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	511 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	512 "Can't allocate memory to compress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	513 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	514 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	515 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	516 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	517 while (err == Z_OK)
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	518 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	519 err = deflate(&(self->zst), Z_FINISH);
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	520 if (self->zst.avail_out <= 0) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	521 if (_PyString_Resize(&RetVal, length << 1) == -1) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	522 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	523 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	524 Py_DECREF(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	525 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	526 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	527 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	528 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	529 length = length << 1;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	530 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	531 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	532 if (err!=Z_STREAM_END) {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	533 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	534 PyErr_Format(ZlibError, "Error %i while compressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	535 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	536 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	537 PyErr_Format(ZlibError, "Error %i while compressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	538 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	539 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	540 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	541 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	542 err=deflateEnd(&(self->zst));
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	543 if (err!=Z_OK) {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	544 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	545 PyErr_Format(ZlibError, "Error %i while flushing compression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	546 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	547 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	548 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	549 "Error %i while flushing compression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	550 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	551 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	552 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	553 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	554 _PyString_Resize(&RetVal,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	555 (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	556 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	557 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	558
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	559 static char decomp_flush__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	560 "flush() -- Return a string containing any remaining decompressed data. "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	561 "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	562 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	563
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	564 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	565 PyZlib_unflush(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	566 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	567 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	568 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	569 int length=0, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	570 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	571
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	572 if (!PyArg_NoArgs(args))
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	573 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	574 if (!(RetVal = PyString_FromStringAndSize(NULL, DEFAULTALLOC)))
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	575 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	576 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	577 "Can't allocate memory to decompress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	578 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	579 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	580 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	581 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	582 length = self->zst.avail_out = DEFAULTALLOC;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	583
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	584 err = Z_OK;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	585 while (err == Z_OK)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	586 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	587 err = inflate(&(self->zst), Z_FINISH);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	588 if (err == Z_OK && self->zst.avail_out == 0)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	589 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	590 if (_PyString_Resize(&RetVal, length << 1) == -1)
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 PyErr_SetString(PyExc_MemoryError,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	593 "Can't allocate memory to decompress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	594 Py_DECREF(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	595 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	596 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	597 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	598 self->zst.avail_out = length;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	599 length = length << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	600 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	601 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	602 if (err!=Z_STREAM_END)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	603 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	604 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	605 PyErr_Format(ZlibError, "Error %i while decompressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	606 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	607 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	608 PyErr_Format(ZlibError, "Error %i while decompressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	609 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	610 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	611 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	612 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	613 err=inflateEnd(&(self->zst));
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	614 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	615 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	616 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	617 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	618 "Error %i while flushing decompression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	619 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	620 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	621 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	622 "Error %i while flushing decompression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	623 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	624 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	625 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	626 }
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	627 _PyString_Resize(&RetVal,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	628 (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	629 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	630 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	631
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	632 static PyMethodDef comp_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	633 {
6184 11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	634 {"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	635 {"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	636 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	637 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	638
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	639 static PyMethodDef Decomp_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	640 {
6184 11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	641 {"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	642 {"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	643 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	644 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	645
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	646 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	647 Comp_getattr(self, name)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	648 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	649 char *name;
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 return Py_FindMethod(comp_methods, (PyObject *)self, name);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	652 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	653
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	654 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	655 Decomp_getattr(self, name)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	656 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	657 char *name;
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 return Py_FindMethod(Decomp_methods, (PyObject *)self, name);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	660 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	661
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	662 static char adler32__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	663 "adler32(string) -- Compute an Adler-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	664 "a default starting value, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	665 "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	666 "the starting value provided, and returning an integer value\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	667 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	668
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	669 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	670 PyZlib_adler32(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	671 PyObject self, args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	672 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	673 uLong adler32val=adler32(0L, Z_NULL, 0);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	674 Byte *buf;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	675 int len;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	676
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	677 if (!PyArg_ParseTuple(args, "s#\|l", &buf, &len, &adler32val))
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	678 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	679 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	680 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	681 adler32val = adler32(adler32val, buf, len);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	682 return PyInt_FromLong(adler32val);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	683 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	684
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	685 static char crc32__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	686 "crc32(string) -- Compute a CRC-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	687 "a default starting value, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	688 "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	689 "the starting value provided, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	690 ;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	691
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	692 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	693 PyZlib_crc32(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	694 PyObject self, args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	695 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	696 uLong crc32val=crc32(0L, Z_NULL, 0);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	697 Byte *buf;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	698 int len;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	699 if (!PyArg_ParseTuple(args, "s#\|l", &buf, &len, &crc32val))
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	700 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	701 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	702 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	703 crc32val = crc32(crc32val, buf, len);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	704 return PyInt_FromLong(crc32val);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	705 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	706
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	707
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	708 static PyMethodDef zlib_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	709 {
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	710 {"adler32", (PyCFunction)PyZlib_adler32, 1, adler32__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	711 {"compress", (PyCFunction)PyZlib_compress, 1, compress__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	712 {"compressobj", (PyCFunction)PyZlib_compressobj, 1, compressobj__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	713 {"crc32", (PyCFunction)PyZlib_crc32, 1, crc32__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	714 {"decompress", (PyCFunction)PyZlib_decompress, 1, decompress__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	715 {"decompressobj", (PyCFunction)PyZlib_decompressobj, 1, decompressobj__doc__},
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	716 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	717 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	718
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	719 statichere PyTypeObject Comptype = {
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	720 PyObject_HEAD_INIT(0)
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	721 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	722 "Compress",
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	723 sizeof(compobject),
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	724 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	725 (destructor)Comp_dealloc, /tp_dealloc/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	726 0, /tp_print/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	727 (getattrfunc)Comp_getattr, /tp_getattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	728 0, /tp_setattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	729 0, /tp_compare/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	730 0, /tp_repr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	731 0, /tp_as_number/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	732 0, /tp_as_sequence/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	733 0, /tp_as_mapping/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	734 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	735
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	736 statichere PyTypeObject Decomptype = {
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	737 PyObject_HEAD_INIT(0)
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	738 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	739 "Decompress",
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	740 sizeof(compobject),
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	741 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	742 (destructor)Decomp_dealloc, /tp_dealloc/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	743 0, /tp_print/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	744 (getattrfunc)Decomp_getattr, /tp_getattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	745 0, /tp_setattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	746 0, /tp_compare/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	747 0, /tp_repr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	748 0, /tp_as_number/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	749 0, /tp_as_sequence/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	750 0, /tp_as_mapping/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	751 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	752
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	753 /* 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	754 socketmodule.c */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	755
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	756 /* Convenience routine to export an integer value.
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	757 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	758 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	759 insint(d, name, value)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	760 PyObject *d;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	761 char *name;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	762 int value;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	763 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	764 PyObject *v = PyInt_FromLong((long) value);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	765 if (v == NULL) {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	766 /* Don't bother reporting this error */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	767 PyErr_Clear();
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 else {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	770 PyDict_SetItemString(d, name, v);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	771 Py_DECREF(v);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	772 }
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
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	775 static char zlib_module_documentation[]=
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	776 "The functions in this module allow compression and decompression "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	777 "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	778 "adler32(string) -- Compute an Adler-32 checksum.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	779 "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	780 "compress(string) -- Compress a string.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	781 "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	782 "compressobj([level]) -- Return a compressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	783 "crc32(string) -- Compute a CRC-32 checksum.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	784 "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	785 "decompress(string,[wbites],[bufsize]) -- Decompresses a compressed string.\n"
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	786 "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	787 "Compressor objects support compress() and flush() methods; decompressor \n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	788 "objects support decompress() and flush()."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	789 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	790
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	791 void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	792 PyInit_zlib()
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	793 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	794 PyObject m, d, *ver;
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	795 Comptype.ob_type = &PyType_Type;
2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	796 Decomptype.ob_type = &PyType_Type;
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	797 m = Py_InitModule4("zlib", zlib_methods,
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	798 zlib_module_documentation,
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	799 (PyObject*)NULL,PYTHON_API_VERSION);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	800 d = PyModule_GetDict(m);
6367 2c29b8982643 Apply two changes, systematically: Guido van Rossum <guido@python.org> parents: 6236 diff changeset	801 ZlibError = PyErr_NewException("zlib.error", NULL, NULL);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	802 PyDict_SetItemString(d, "error", ZlibError);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	803
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	804 insint(d, "MAX_WBITS", MAX_WBITS);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	805 insint(d, "DEFLATED", DEFLATED);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	806 insint(d, "DEF_MEM_LEVEL", DEF_MEM_LEVEL);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	807 insint(d, "Z_BEST_SPEED", Z_BEST_SPEED);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	808 insint(d, "Z_BEST_COMPRESSION", Z_BEST_COMPRESSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	809 insint(d, "Z_DEFAULT_COMPRESSION", Z_DEFAULT_COMPRESSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	810 insint(d, "Z_FILTERED", Z_FILTERED);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	811 insint(d, "Z_HUFFMAN_ONLY", Z_HUFFMAN_ONLY);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	812 insint(d, "Z_DEFAULT_STRATEGY", Z_DEFAULT_STRATEGY);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	813 ver = PyString_FromString(ZLIB_VERSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	814 PyDict_SetItemString(d, "ZLIB_VERSION", ver);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	815 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/zlibmodule.c @ 8831:00a6bb65ff29 legacy-trunk