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

annotate Modules/zlibmodule.c @ 7278:59d2761ba1cf legacy-trunk

Remove obsolete pagenumbering / pagestyle cruft.

author	Fred Drake <fdrake@acm.org>
date	Fri, 13 Feb 1998 07:08:56 +0000
parents	2c49c02cf747
children	fdba6397b729

rev	line source
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	1 /* zlibmodule.c -- gzip-compatible data compression */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	2
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	3 #include "Python.h"
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	4 #ifdef MS_WIN32
2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	5 #define ZLIB_DLL
2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	6 #endif
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	7 #include "zlib.h"
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	9 /* 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	10 #define DEFLATED 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	11 #if MAX_MEM_LEVEL >= 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	12 # define DEF_MEM_LEVEL 8
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	13 #else
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	14 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	15 #endif
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	16 #define DEF_WBITS MAX_WBITS
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	17
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	18 /* 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	19 #define DEFAULTALLOC 16*1024
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	20 #define PyInit_zlib initzlib
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	21
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	22 staticforward PyTypeObject Comptype;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	23 staticforward PyTypeObject Decomptype;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	24
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	25 static PyObject *ZlibError;
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 typedef struct
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 PyObject_HEAD
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	30 z_stream zst;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	31 } compobject;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	32
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	33 static char compressobj__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	34 "compressobj() -- Return a compressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	35 "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	36 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	37
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	38 static char decompressobj__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	39 "decompressobj() -- Return a decompressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	40 "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	41 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	42
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	43 static compobject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	44 newcompobject(type)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	45 PyTypeObject *type;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	46 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	47 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	48 self = PyObject_NEW(compobject, type);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	49 if (self == NULL)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	50 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	51 return self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	52 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	53
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	54 static char compress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	55 "compress(string) -- Compress string using the default compression level, "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	56 "returning a string containing compressed data.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	57 "compress(string, level) -- Compress string, using the chosen compression "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	58 "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	59 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	60
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	61 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	62 PyZlib_compress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	63 PyObject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	64 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	65 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	66 PyObject *ReturnVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	67 Byte input, output;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	68 int length, level=Z_DEFAULT_COMPRESSION, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	69 z_stream zst;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	70
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	71 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	72 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	73 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	74 output=(Byte*)malloc(zst.avail_out);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	75 if (output==NULL)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	76 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	77 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	78 "Can't allocate memory to compress data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	79 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	80 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	81 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	82 zst.zfree=(free_func)Z_NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	83 zst.next_out=(Byte *)output;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	84 zst.next_in =(Byte *)input;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	85 zst.avail_in=length;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	86 err=deflateInit(&zst, level);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	87 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	88 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	89 case(Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	90 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	91 case(Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	92 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	93 "Out of memory while compressing data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	94 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	95 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	96 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	97 case(Z_STREAM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	98 PyErr_SetString(ZlibError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	99 "Bad compression level");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	100 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	101 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	102 break;
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 break;
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
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	118 err=deflate(&zst, Z_FINISH);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	119 switch(err)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	120 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	121 case(Z_STREAM_END):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	122 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	123 /* Are there other errors to be trapped here? */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	124 default:
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	125 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	126 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	127 PyErr_Format(ZlibError, "Error %i while compressing data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	128 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	129 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	130 PyErr_Format(ZlibError, "Error %i while compressing data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	131 err, zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	132 deflateEnd(&zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	133 free(output);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	134 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	135 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	136 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	137 err=deflateEnd(&zst);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	138 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	139 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	140 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	141 PyErr_Format(ZlibError, "Error %i while finishing compression",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	142 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	143 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	144 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	145 "Error %i while finishing compression: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	146 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	147 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	148 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	149 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	150 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	151 free(output);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	152 return ReturnVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	153 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	154
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	155 static char decompress__doc__[] =
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	156 "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	157 "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	158 "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	159 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	160
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	161 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	162 PyZlib_decompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	163 PyObject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	164 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	165 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	166 PyObject *result_str;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	167 Byte *input;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	168 int length, err;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	169 int wsize=DEF_WBITS, r_strlen=DEFAULTALLOC;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	170 z_stream zst;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	171 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	172 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	173
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	174 if (r_strlen <= 0)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	175 r_strlen = 1;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	176
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	177 zst.avail_in=length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	178 zst.avail_out=r_strlen;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	179 if (!(result_str = PyString_FromStringAndSize(NULL, r_strlen)))
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	180 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	181 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	182 "Can't allocate memory to decompress data");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	183 return NULL;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	184 }
5723 beee351f1f72 Small changes (casts etc.) by Jack, for Mac compilation. Guido van Rossum <guido@python.org> parents: 5722 diff changeset	185 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	186 zst.zfree=(free_func)Z_NULL;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	187 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	188 zst.next_in =(Byte *)input;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	189 err=inflateInit2(&zst, wsize);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	190 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	191 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	192 case(Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	193 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	194 case(Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	195 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	196 "Out of memory while decompressing data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	197 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	198 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	199 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	200 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	201 if (zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	202 PyErr_Format(ZlibError, "Error %i preparing to decompress data",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	203 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	204 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	205 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	206 "Error %i while preparing to decompress data: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	207 err, zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	208 inflateEnd(&zst);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	209 Py_DECREF(result_str);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	210 return NULL;
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 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	213 do
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	214 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	215 err=inflate(&zst, Z_FINISH);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	216 switch(err)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	217 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	218 case(Z_STREAM_END):
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	219 break;
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 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	291 case (Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	292 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	293 "Can't allocate memory for compression object");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	294 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	295 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	296 case(Z_STREAM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	297 PyErr_SetString(PyExc_ValueError,
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	298 "Invalid initialization option");
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	299 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	300 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	301 default:
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	302 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	303 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	304 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	305 "Error %i while creating compression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	306 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	307 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	308 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	309 "Error %i while creating compression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	310 err, self->zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	311 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	312 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	313 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	314 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	315 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	316
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	317 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	318 PyZlib_decompressobj(selfptr, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	319 PyObject *selfptr;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	320 PyObject *args;
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 int wbits=DEF_WBITS, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	323 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	324 if (!PyArg_ParseTuple(args, "\|i", &wbits))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	325 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	326 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	327 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	328 self=newcompobject(&Decomptype);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	329 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	330 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	331 self->zst.zfree=(free_func)Z_NULL;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	332 err=inflateInit2(&self->zst, wbits);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	333 switch(err)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	334 {
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	335 case (Z_OK):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	336 return (PyObject*)self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	337 break;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	338 case(Z_STREAM_ERROR):
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	339 PyErr_SetString(PyExc_ValueError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	340 "Invalid initialization option");
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	341 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	342 break;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	343 case (Z_MEM_ERROR):
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	344 PyErr_SetString(PyExc_MemoryError,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	345 "Can't allocate memory for decompression object");
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	346 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	347 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	348 default:
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	349 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	350 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	351 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	352 "Error %i while creating decompression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	353 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	354 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	355 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	356 "Error %i while creating decompression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	357 err, self->zst.msg);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	358 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	359 break;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	360 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	361 }
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 Comp_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 deflateEnd(&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
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	372 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	373 Decomp_dealloc(self)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	374 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	375 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	376 inflateEnd(&self->zst);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	377 PyMem_DEL(self);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	378 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	379
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	380 static char comp_compress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	381 "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	382 "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	383 "be stored in internal buffers for later processing.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	384 "Call the flush() method to clear these buffers."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	385 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	386
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	387
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	388 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	389 PyZlib_objcompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	390 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	391 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	392 {
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	393 int err = Z_OK, inplen;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	394 int length = DEFAULTALLOC;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	395 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	396 Byte *input;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	397 unsigned long start_total_out;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	398
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	399 if (!PyArg_ParseTuple(args, "s#", &input, &inplen))
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	400 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	401 self->zst.avail_in = inplen;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	402 self->zst.next_in = input;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	403 if (!(RetVal = PyString_FromStringAndSize(NULL, length))) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	404 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	405 "Can't allocate memory to compress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	406 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	407 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	408 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	409 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	410 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	411 while (self->zst.avail_in != 0 && err == Z_OK)
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	412 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	413 err = deflate(&(self->zst), Z_NO_FLUSH);
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	414 if (self->zst.avail_out <= 0) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	415 if (_PyString_Resize(&RetVal, length << 1) == -1) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	416 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	417 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	418 Py_DECREF(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	419 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	420 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	421 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	422 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	423 length = length << 1;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	424 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	425 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	426 if (err != Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	427 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	428 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	429 PyErr_Format(ZlibError, "Error %i while compressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	430 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	431 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	432 PyErr_Format(ZlibError, "Error %i while compressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	433 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	434 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	435 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	436 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	437 _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	438 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	439 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	440
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	441 static char decomp_decompress__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	442 "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	443 "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	444 "be stored in internal buffers for later processing.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	445 "Call the flush() method to clear these buffers."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	446 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	447
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	448 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	449 PyZlib_objdecompress(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	450 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	451 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	452 {
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	453 int length, err, inplen;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	454 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	455 Byte *input;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	456 unsigned long start_total_out;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	457
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	458 if (!PyArg_ParseTuple(args, "s#", &input, &inplen))
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	459 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	460 start_total_out = self->zst.total_out;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	461 RetVal = PyString_FromStringAndSize(NULL, DEFAULTALLOC);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	462 self->zst.avail_in = inplen;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	463 self->zst.next_in = input;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	464 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	465 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	466 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	467
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	468 while (self->zst.avail_in != 0 && err == Z_OK)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	469 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	470 err = inflate(&(self->zst), Z_NO_FLUSH);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	471 if (err == Z_OK && self->zst.avail_out <= 0)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	472 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	473 if (_PyString_Resize(&RetVal, length << 1) == -1)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	474 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	475 PyErr_SetString(PyExc_MemoryError,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	476 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	477 Py_DECREF(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	478 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	479 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	480 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	481 self->zst.avail_out = length;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	482 length = length << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	483 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	484 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	485
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	486 if (err != Z_OK && err != Z_STREAM_END)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	487 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	488 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	489 PyErr_Format(ZlibError, "Error %i while decompressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	490 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	491 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	492 PyErr_Format(ZlibError, "Error %i while decompressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	493 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	494 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	495 return NULL;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	496 }
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	497 _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	498 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	499 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	500
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	501 static char comp_flush__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	502 "flush() -- Return a string containing any remaining compressed data. "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	503 "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	504 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	505
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	506 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	507 PyZlib_flush(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	508 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	509 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	510 {
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	511 int length=DEFAULTALLOC, err = Z_OK;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	512 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	513
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	514 if (!PyArg_NoArgs(args))
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	515 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	516 self->zst.avail_in = 0;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	517 self->zst.next_in = Z_NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	518 if (!(RetVal = PyString_FromStringAndSize(NULL, length))) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	519 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	520 "Can't allocate memory to compress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	521 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	522 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	523 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	524 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	525 while (err == Z_OK)
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	526 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	527 err = deflate(&(self->zst), Z_FINISH);
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	528 if (self->zst.avail_out <= 0) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	529 if (_PyString_Resize(&RetVal, length << 1) == -1) {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	530 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	531 "Can't allocate memory to compress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	532 Py_DECREF(RetVal);
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	533 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	534 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	535 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	536 self->zst.avail_out = length;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	537 length = length << 1;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	538 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	539 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	540 if (err!=Z_STREAM_END) {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	541 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	542 PyErr_Format(ZlibError, "Error %i while compressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	543 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	544 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	545 PyErr_Format(ZlibError, "Error %i while compressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	546 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	547 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	548 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	549 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	550 err=deflateEnd(&(self->zst));
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	551 if (err!=Z_OK) {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	552 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	553 PyErr_Format(ZlibError, "Error %i while flushing compression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	554 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	555 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	556 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	557 "Error %i while flushing compression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	558 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	559 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	560 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	561 }
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	562 _PyString_Resize(&RetVal,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	563 (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	564 return RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	565 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	566
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	567 static char decomp_flush__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	568 "flush() -- Return a string containing any remaining decompressed data. "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	569 "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	570 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	571
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	572 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	573 PyZlib_unflush(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	574 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	575 PyObject *args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	576 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	577 int length=0, err;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	578 PyObject *RetVal;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	579
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	580 if (!PyArg_NoArgs(args))
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	581 return NULL;
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	582 if (!(RetVal = PyString_FromStringAndSize(NULL, DEFAULTALLOC)))
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	583 {
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	584 PyErr_SetString(PyExc_MemoryError,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	585 "Can't allocate memory to decompress data");
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	586 return NULL;
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	587 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	588 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	589 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	590 length = self->zst.avail_out = DEFAULTALLOC;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	591
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	592 err = Z_OK;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	593 while (err == Z_OK)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	594 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	595 err = inflate(&(self->zst), Z_FINISH);
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	596 if (err == Z_OK && self->zst.avail_out == 0)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	597 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	598 if (_PyString_Resize(&RetVal, length << 1) == -1)
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	599 {
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	600 PyErr_SetString(PyExc_MemoryError,
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	601 "Can't allocate memory to decompress data");
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	602 Py_DECREF(RetVal);
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	603 return NULL;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	604 }
6094 a22fca7a5c5a Casts by Jack to shut up the Mac compiler. Guido van Rossum <guido@python.org> parents: 6042 diff changeset	605 self->zst.next_out = (unsigned char *)PyString_AsString(RetVal) + length;
6007 9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	606 self->zst.avail_out = length;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	607 length = length << 1;
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	608 }
9ba72fc4f503 Many changes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6003 diff changeset	609 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	610 if (err!=Z_STREAM_END)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	611 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	612 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	613 PyErr_Format(ZlibError, "Error %i while decompressing",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	614 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	615 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	616 PyErr_Format(ZlibError, "Error %i while decompressing: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	617 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	618 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	619 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	620 }
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	621 err=inflateEnd(&(self->zst));
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	622 if (err!=Z_OK)
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	623 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	624 if (self->zst.msg == Z_NULL)
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	625 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	626 "Error %i while flushing decompression object",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	627 err);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	628 else
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	629 PyErr_Format(ZlibError,
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	630 "Error %i while flushing decompression object: %.200s",
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	631 err, self->zst.msg);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	632 Py_DECREF(RetVal);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	633 return NULL;
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	634 }
6042 6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	635 _PyString_Resize(&RetVal,
6db3d52d4a78 Several bug fixes. Jeremy Hylton <jeremy@alum.mit.edu> parents: 6007 diff changeset	636 (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	637 return RetVal;
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
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	640 static PyMethodDef comp_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	641 {
6184 11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	642 {"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	643 {"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	644 {NULL, NULL}
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
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	647 static PyMethodDef Decomp_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	648 {
6184 11249d439840 Added (binaryfunc) casts to function pointers in method lists. Guido van Rossum <guido@python.org> parents: 6094 diff changeset	649 {"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	650 {"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	651 {NULL, NULL}
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 Comp_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(comp_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
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	662 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	663 Decomp_getattr(self, name)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	664 compobject *self;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	665 char *name;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	666 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	667 return Py_FindMethod(Decomp_methods, (PyObject *)self, name);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	668 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	669
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	670 static char adler32__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	671 "adler32(string) -- Compute an Adler-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	672 "a default starting value, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	673 "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	674 "the starting value provided, and returning an integer value\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	675 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	676
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	677 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	678 PyZlib_adler32(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	679 PyObject self, args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	680 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	681 uLong adler32val=adler32(0L, Z_NULL, 0);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	682 Byte *buf;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	683 int len;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	684
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	685 if (!PyArg_ParseTuple(args, "s#\|l", &buf, &len, &adler32val))
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	686 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	687 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	688 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	689 adler32val = adler32(adler32val, buf, len);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	690 return PyInt_FromLong(adler32val);
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
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	693 static char crc32__doc__[] =
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	694 "crc32(string) -- Compute a CRC-32 checksum of string, using "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	695 "a default starting value, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	696 "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	697 "the starting value provided, and returning an integer value.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	698 ;
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	699
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	700 static PyObject *
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	701 PyZlib_crc32(self, args)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	702 PyObject self, args;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	703 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	704 uLong crc32val=crc32(0L, Z_NULL, 0);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	705 Byte *buf;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	706 int len;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	707 if (!PyArg_ParseTuple(args, "s#\|l", &buf, &len, &crc32val))
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	708 {
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	709 return NULL;
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	710 }
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	711 crc32val = crc32(crc32val, buf, len);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	712 return PyInt_FromLong(crc32val);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	713 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	714
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	715
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	716 static PyMethodDef zlib_methods[] =
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	717 {
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	718 {"adler32", (PyCFunction)PyZlib_adler32, 1, adler32__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	719 {"compress", (PyCFunction)PyZlib_compress, 1, compress__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	720 {"compressobj", (PyCFunction)PyZlib_compressobj, 1, compressobj__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	721 {"crc32", (PyCFunction)PyZlib_crc32, 1, crc32__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	722 {"decompress", (PyCFunction)PyZlib_decompress, 1, decompress__doc__},
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	723 {"decompressobj", (PyCFunction)PyZlib_decompressobj, 1, decompressobj__doc__},
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	724 {NULL, NULL}
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	725 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	726
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	727 statichere PyTypeObject Comptype = {
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	728 PyObject_HEAD_INIT(0)
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	729 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	730 "Compress",
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	731 sizeof(compobject),
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	732 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	733 (destructor)Comp_dealloc, /tp_dealloc/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	734 0, /tp_print/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	735 (getattrfunc)Comp_getattr, /tp_getattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	736 0, /tp_setattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	737 0, /tp_compare/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	738 0, /tp_repr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	739 0, /tp_as_number/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	740 0, /tp_as_sequence/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	741 0, /tp_as_mapping/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	742 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	743
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	744 statichere PyTypeObject Decomptype = {
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	745 PyObject_HEAD_INIT(0)
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	746 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	747 "Decompress",
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	748 sizeof(compobject),
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	749 0,
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	750 (destructor)Decomp_dealloc, /tp_dealloc/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	751 0, /tp_print/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	752 (getattrfunc)Decomp_getattr, /tp_getattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	753 0, /tp_setattr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	754 0, /tp_compare/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	755 0, /tp_repr/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	756 0, /tp_as_number/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	757 0, /tp_as_sequence/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	758 0, /tp_as_mapping/
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	759 };
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	760
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	761 /* 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	762 socketmodule.c */
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 /* Convenience routine to export an integer value.
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	765 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	766 static void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	767 insint(d, name, value)
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	768 PyObject *d;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	769 char *name;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	770 int value;
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	771 {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	772 PyObject *v = PyInt_FromLong((long) value);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	773 if (v == NULL) {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	774 /* Don't bother reporting this error */
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	775 PyErr_Clear();
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	776 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	777 else {
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	778 PyDict_SetItemString(d, name, v);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	779 Py_DECREF(v);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	780 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	781 }
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	782
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	783 static char zlib_module_documentation[]=
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	784 "The functions in this module allow compression and decompression "
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	785 "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	786 "adler32(string) -- Compute an Adler-32 checksum.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	787 "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	788 "compress(string) -- Compress a string.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	789 "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	790 "compressobj([level]) -- Return a compressor object.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	791 "crc32(string) -- Compute a CRC-32 checksum.\n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	792 "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	793 "decompress(string,[wbites],[bufsize]) -- Decompresses a compressed string.\n"
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	794 "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	795 "Compressor objects support compress() and flush() methods; decompressor \n"
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	796 "objects support decompress() and flush()."
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	797 ;
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	798
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	799 void
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	800 PyInit_zlib()
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	801 {
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	802 PyObject m, d, *ver;
6911 2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	803 Comptype.ob_type = &PyType_Type;
2c49c02cf747 Win32 treatment. Guido van Rossum <guido@python.org> parents: 6367 diff changeset	804 Decomptype.ob_type = &PyType_Type;
5722 6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	805 m = Py_InitModule4("zlib", zlib_methods,
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	806 zlib_module_documentation,
6c9736865608 Doc strings (AMK). Guido van Rossum <guido@python.org> parents: 5352 diff changeset	807 (PyObject*)NULL,PYTHON_API_VERSION);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	808 d = PyModule_GetDict(m);
6367 2c29b8982643 Apply two changes, systematically: Guido van Rossum <guido@python.org> parents: 6236 diff changeset	809 ZlibError = PyErr_NewException("zlib.error", NULL, NULL);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	810 PyDict_SetItemString(d, "error", ZlibError);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	811
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	812 insint(d, "MAX_WBITS", MAX_WBITS);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	813 insint(d, "DEFLATED", DEFLATED);
d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	814 insint(d, "DEF_MEM_LEVEL", DEF_MEM_LEVEL);
6236 6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	815 insint(d, "Z_BEST_SPEED", Z_BEST_SPEED);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	816 insint(d, "Z_BEST_COMPRESSION", Z_BEST_COMPRESSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	817 insint(d, "Z_DEFAULT_COMPRESSION", Z_DEFAULT_COMPRESSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	818 insint(d, "Z_FILTERED", Z_FILTERED);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	819 insint(d, "Z_HUFFMAN_ONLY", Z_HUFFMAN_ONLY);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	820 insint(d, "Z_DEFAULT_STRATEGY", Z_DEFAULT_STRATEGY);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	821 ver = PyString_FromString(ZLIB_VERSION);
6dfec320f910 Several changes: Jeremy Hylton <jeremy@alum.mit.edu> parents: 6226 diff changeset	822 PyDict_SetItemString(d, "ZLIB_VERSION", ver);
5352 d5757aad1a4f Added Andrew Kuchling's zlib module. Guido van Rossum <guido@python.org> parents: diff changeset	823 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/zlibmodule.c @ 7278:59d2761ba1cf legacy-trunk