author | Gregory Szorc <gregory.szorc@gmail.com> |
Fri, 23 Feb 2018 16:03:27 -0800 | |
changeset 36561 | 1138e5c0fbc9 |
parent 31799 | e0dc40530c5a |
child 37495 | b1fb341d8a61 |
permissions | -rw-r--r-- |
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/** |
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* Copyright (c) 2016-present, Gregory Szorc |
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* All rights reserved. |
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* |
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* This software may be modified and distributed under the terms |
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* of the BSD license. See the LICENSE file for details. |
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*/ |
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|
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#include "python-zstandard.h" |
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#include "pool.h" |
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extern PyObject* ZstdError; |
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|
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/** |
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* Ensure the ZSTD_DStream on a ZstdDecompressor is initialized and reset. |
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* |
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* This should be called before starting a decompression operation with a |
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* ZSTD_DStream on a ZstdDecompressor. |
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*/ |
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int init_dstream(ZstdDecompressor* decompressor) { |
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void* dictData = NULL; |
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size_t dictSize = 0; |
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size_t zresult; |
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|
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/* Simple case of dstream already exists. Just reset it. */ |
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if (decompressor->dstream) { |
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zresult = ZSTD_resetDStream(decompressor->dstream); |
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if (ZSTD_isError(zresult)) { |
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PyErr_Format(ZstdError, "could not reset DStream: %s", |
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ZSTD_getErrorName(zresult)); |
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return -1; |
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} |
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|
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return 0; |
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} |
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|
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decompressor->dstream = ZSTD_createDStream(); |
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if (!decompressor->dstream) { |
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PyErr_SetString(ZstdError, "could not create DStream"); |
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return -1; |
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} |
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|
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if (decompressor->dict) { |
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dictData = decompressor->dict->dictData; |
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dictSize = decompressor->dict->dictSize; |
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} |
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|
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if (dictData) { |
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zresult = ZSTD_initDStream_usingDict(decompressor->dstream, dictData, dictSize); |
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} |
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else { |
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zresult = ZSTD_initDStream(decompressor->dstream); |
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} |
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|
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if (ZSTD_isError(zresult)) { |
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/* Don't leave a reference to an invalid object. */ |
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ZSTD_freeDStream(decompressor->dstream); |
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decompressor->dstream = NULL; |
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|
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PyErr_Format(ZstdError, "could not initialize DStream: %s", |
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ZSTD_getErrorName(zresult)); |
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return -1; |
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} |
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|
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return 0; |
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} |
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|
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PyDoc_STRVAR(Decompressor__doc__, |
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"ZstdDecompressor(dict_data=None)\n" |
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"\n" |
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"Create an object used to perform Zstandard decompression.\n" |
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"\n" |
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"An instance can perform multiple decompression operations." |
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); |
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|
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static int Decompressor_init(ZstdDecompressor* self, PyObject* args, PyObject* kwargs) { |
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static char* kwlist[] = { |
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"dict_data", |
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NULL |
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}; |
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|
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ZstdCompressionDict* dict = NULL; |
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|
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self->dctx = NULL; |
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self->dict = NULL; |
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self->ddict = NULL; |
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|
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if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O!:ZstdDecompressor", kwlist, |
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&ZstdCompressionDictType, &dict)) { |
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return -1; |
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} |
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|
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/* TODO lazily initialize the reference ZSTD_DCtx on first use since |
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not instances of ZstdDecompressor will use a ZSTD_DCtx. */ |
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self->dctx = ZSTD_createDCtx(); |
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if (!self->dctx) { |
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PyErr_NoMemory(); |
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98 |
goto except; |
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99 |
} |
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100 |
|
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101 |
if (dict) { |
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self->dict = dict; |
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Py_INCREF(dict); |
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} |
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|
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return 0; |
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107 |
|
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108 |
except: |
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if (self->dctx) { |
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ZSTD_freeDCtx(self->dctx); |
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self->dctx = NULL; |
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} |
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|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
114 |
return -1; |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
115 |
} |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
116 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
117 |
static void Decompressor_dealloc(ZstdDecompressor* self) { |
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
118 |
Py_CLEAR(self->dict); |
30444
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zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
119 |
|
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
120 |
if (self->ddict) { |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
121 |
ZSTD_freeDDict(self->ddict); |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
122 |
self->ddict = NULL; |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
123 |
} |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
124 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
125 |
if (self->dstream) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
126 |
ZSTD_freeDStream(self->dstream); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
127 |
self->dstream = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
128 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
129 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
130 |
if (self->dctx) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
131 |
ZSTD_freeDCtx(self->dctx); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
132 |
self->dctx = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
133 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
134 |
|
30444
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zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
135 |
PyObject_Del(self); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
136 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
137 |
|
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
138 |
PyDoc_STRVAR(Decompressor_copy_stream__doc__, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
139 |
"copy_stream(ifh, ofh[, read_size=default, write_size=default]) -- decompress data between streams\n" |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
140 |
"\n" |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
141 |
"Compressed data will be read from ``ifh``, decompressed, and written to\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
142 |
"``ofh``. ``ifh`` must have a ``read(size)`` method. ``ofh`` must have a\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
143 |
"``write(data)`` method.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
144 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
145 |
"The optional ``read_size`` and ``write_size`` arguments control the chunk\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
146 |
"size of data that is ``read()`` and ``write()`` between streams. They default\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
147 |
"to the default input and output sizes of zstd decompressor streams.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
148 |
); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
149 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
150 |
static PyObject* Decompressor_copy_stream(ZstdDecompressor* self, PyObject* args, PyObject* kwargs) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
151 |
static char* kwlist[] = { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
152 |
"ifh", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
153 |
"ofh", |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
154 |
"read_size", |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
155 |
"write_size", |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
156 |
NULL |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
157 |
}; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
158 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
159 |
PyObject* source; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
160 |
PyObject* dest; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
161 |
size_t inSize = ZSTD_DStreamInSize(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
162 |
size_t outSize = ZSTD_DStreamOutSize(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
163 |
ZSTD_inBuffer input; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
164 |
ZSTD_outBuffer output; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
165 |
Py_ssize_t totalRead = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
166 |
Py_ssize_t totalWrite = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
167 |
char* readBuffer; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
168 |
Py_ssize_t readSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
169 |
PyObject* readResult; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
170 |
PyObject* res = NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
171 |
size_t zresult = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
172 |
PyObject* writeResult; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
173 |
PyObject* totalReadPy; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
174 |
PyObject* totalWritePy; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
175 |
|
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
176 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO|kk:copy_stream", kwlist, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
177 |
&source, &dest, &inSize, &outSize)) { |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
178 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
179 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
180 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
181 |
if (!PyObject_HasAttrString(source, "read")) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
182 |
PyErr_SetString(PyExc_ValueError, "first argument must have a read() method"); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
183 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
184 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
185 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
186 |
if (!PyObject_HasAttrString(dest, "write")) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
187 |
PyErr_SetString(PyExc_ValueError, "second argument must have a write() method"); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
188 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
189 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
190 |
|
30830
08fa3a76a080
zstd: prevent potential free() of uninitialized memory
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30444
diff
changeset
|
191 |
/* Prevent free on uninitialized memory in finally. */ |
08fa3a76a080
zstd: prevent potential free() of uninitialized memory
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30444
diff
changeset
|
192 |
output.dst = NULL; |
08fa3a76a080
zstd: prevent potential free() of uninitialized memory
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30444
diff
changeset
|
193 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
194 |
if (0 != init_dstream(self)) { |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
195 |
res = NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
196 |
goto finally; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
197 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
198 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
199 |
output.dst = PyMem_Malloc(outSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
200 |
if (!output.dst) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
201 |
PyErr_NoMemory(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
202 |
res = NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
203 |
goto finally; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
204 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
205 |
output.size = outSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
206 |
output.pos = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
207 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
208 |
/* Read source stream until EOF */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
209 |
while (1) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
210 |
readResult = PyObject_CallMethod(source, "read", "n", inSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
211 |
if (!readResult) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
212 |
PyErr_SetString(ZstdError, "could not read() from source"); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
213 |
goto finally; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
214 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
215 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
216 |
PyBytes_AsStringAndSize(readResult, &readBuffer, &readSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
217 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
218 |
/* If no data was read, we're at EOF. */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
219 |
if (0 == readSize) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
220 |
break; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
221 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
222 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
223 |
totalRead += readSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
224 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
225 |
/* Send data to decompressor */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
226 |
input.src = readBuffer; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
227 |
input.size = readSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
228 |
input.pos = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
229 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
230 |
while (input.pos < input.size) { |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
231 |
Py_BEGIN_ALLOW_THREADS |
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|
232 |
zresult = ZSTD_decompressStream(self->dstream, &output, &input); |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
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|
233 |
Py_END_ALLOW_THREADS |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
234 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
235 |
if (ZSTD_isError(zresult)) { |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
236 |
PyErr_Format(ZstdError, "zstd decompressor error: %s", |
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zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
237 |
ZSTD_getErrorName(zresult)); |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
238 |
res = NULL; |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
239 |
goto finally; |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
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|
240 |
} |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
241 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
242 |
if (output.pos) { |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
243 |
#if PY_MAJOR_VERSION >= 3 |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
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|
244 |
writeResult = PyObject_CallMethod(dest, "write", "y#", |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
245 |
#else |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
246 |
writeResult = PyObject_CallMethod(dest, "write", "s#", |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
247 |
#endif |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
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|
248 |
output.dst, output.pos); |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
249 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
250 |
Py_XDECREF(writeResult); |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
251 |
totalWrite += output.pos; |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
252 |
output.pos = 0; |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
253 |
} |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
254 |
} |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
255 |
} |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
256 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
257 |
/* Source stream is exhausted. Finish up. */ |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
258 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
259 |
totalReadPy = PyLong_FromSsize_t(totalRead); |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
260 |
totalWritePy = PyLong_FromSsize_t(totalWrite); |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
261 |
res = PyTuple_Pack(2, totalReadPy, totalWritePy); |
31799
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
262 |
Py_DECREF(totalReadPy); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
263 |
Py_DECREF(totalWritePy); |
30444
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
264 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
265 |
finally: |
30444
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
266 |
if (output.dst) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
267 |
PyMem_Free(output.dst); |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
268 |
} |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
269 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
270 |
return res; |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
271 |
} |
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
272 |
|
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
273 |
PyDoc_STRVAR(Decompressor_decompress__doc__, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
274 |
"decompress(data[, max_output_size=None]) -- Decompress data in its entirety\n" |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
275 |
"\n" |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
276 |
"This method will decompress the entirety of the argument and return the\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
277 |
"result.\n" |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
278 |
"\n" |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
279 |
"The input bytes are expected to contain a full Zstandard frame (something\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
280 |
"compressed with ``ZstdCompressor.compress()`` or similar). If the input does\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
281 |
"not contain a full frame, an exception will be raised.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
282 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
283 |
"If the frame header of the compressed data does not contain the content size\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
284 |
"``max_output_size`` must be specified or ``ZstdError`` will be raised. An\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
285 |
"allocation of size ``max_output_size`` will be performed and an attempt will\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
286 |
"be made to perform decompression into that buffer. If the buffer is too\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
287 |
"small or cannot be allocated, ``ZstdError`` will be raised. The buffer will\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
288 |
"be resized if it is too large.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
289 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
290 |
"Uncompressed data could be much larger than compressed data. As a result,\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
291 |
"calling this function could result in a very large memory allocation being\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
292 |
"performed to hold the uncompressed data. Therefore it is **highly**\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
293 |
"recommended to use a streaming decompression method instead of this one.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
294 |
); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
295 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
296 |
PyObject* Decompressor_decompress(ZstdDecompressor* self, PyObject* args, PyObject* kwargs) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
297 |
static char* kwlist[] = { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
298 |
"data", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
299 |
"max_output_size", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
300 |
NULL |
b86a448a2965
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Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
301 |
}; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
302 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
303 |
const char* source; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
304 |
Py_ssize_t sourceSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
305 |
Py_ssize_t maxOutputSize = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
306 |
unsigned long long decompressedSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
307 |
size_t destCapacity; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
308 |
PyObject* result = NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
309 |
void* dictData = NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
310 |
size_t dictSize = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
311 |
size_t zresult; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
312 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
313 |
#if PY_MAJOR_VERSION >= 3 |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
314 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "y#|n:decompress", |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
315 |
#else |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
316 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s#|n:decompress", |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
317 |
#endif |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
318 |
kwlist, &source, &sourceSize, &maxOutputSize)) { |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
319 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
320 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
321 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
322 |
if (self->dict) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
323 |
dictData = self->dict->dictData; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
324 |
dictSize = self->dict->dictSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
325 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
326 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
327 |
if (dictData && !self->ddict) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
328 |
Py_BEGIN_ALLOW_THREADS |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
329 |
self->ddict = ZSTD_createDDict_byReference(dictData, dictSize); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
330 |
Py_END_ALLOW_THREADS |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
331 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
332 |
if (!self->ddict) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
333 |
PyErr_SetString(ZstdError, "could not create decompression dict"); |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
334 |
return NULL; |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
335 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
336 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
337 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
338 |
decompressedSize = ZSTD_getDecompressedSize(source, sourceSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
339 |
/* 0 returned if content size not in the zstd frame header */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
340 |
if (0 == decompressedSize) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
341 |
if (0 == maxOutputSize) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
342 |
PyErr_SetString(ZstdError, "input data invalid or missing content size " |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
343 |
"in frame header"); |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
344 |
return NULL; |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
345 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
346 |
else { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
347 |
result = PyBytes_FromStringAndSize(NULL, maxOutputSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
348 |
destCapacity = maxOutputSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
349 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
350 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
351 |
else { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
352 |
result = PyBytes_FromStringAndSize(NULL, decompressedSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
353 |
destCapacity = decompressedSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
354 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
355 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
356 |
if (!result) { |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
357 |
return NULL; |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
358 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
359 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
360 |
Py_BEGIN_ALLOW_THREADS |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
361 |
if (self->ddict) { |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
362 |
zresult = ZSTD_decompress_usingDDict(self->dctx, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
363 |
PyBytes_AsString(result), destCapacity, |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
364 |
source, sourceSize, self->ddict); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
365 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
366 |
else { |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
367 |
zresult = ZSTD_decompressDCtx(self->dctx, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
368 |
PyBytes_AsString(result), destCapacity, source, sourceSize); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
369 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
370 |
Py_END_ALLOW_THREADS |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
371 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
372 |
if (ZSTD_isError(zresult)) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
373 |
PyErr_Format(ZstdError, "decompression error: %s", ZSTD_getErrorName(zresult)); |
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
374 |
Py_DECREF(result); |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
375 |
return NULL; |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
376 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
377 |
else if (decompressedSize && zresult != decompressedSize) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
378 |
PyErr_Format(ZstdError, "decompression error: decompressed %zu bytes; expected %llu", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
379 |
zresult, decompressedSize); |
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
380 |
Py_DECREF(result); |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
381 |
return NULL; |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
382 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
383 |
else if (zresult < destCapacity) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
384 |
if (_PyBytes_Resize(&result, zresult)) { |
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
385 |
Py_DECREF(result); |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
386 |
return NULL; |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
387 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
388 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
389 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
390 |
return result; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
391 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
392 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
393 |
PyDoc_STRVAR(Decompressor_decompressobj__doc__, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
394 |
"decompressobj()\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
395 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
396 |
"Incrementally feed data into a decompressor.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
397 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
398 |
"The returned object exposes a ``decompress(data)`` method. This makes it\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
399 |
"compatible with ``zlib.decompressobj`` and ``bz2.BZ2Decompressor`` so that\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
400 |
"callers can swap in the zstd decompressor while using the same API.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
401 |
); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
402 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
403 |
static ZstdDecompressionObj* Decompressor_decompressobj(ZstdDecompressor* self) { |
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
404 |
ZstdDecompressionObj* result = (ZstdDecompressionObj*)PyObject_CallObject((PyObject*)&ZstdDecompressionObjType, NULL); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
405 |
if (!result) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
406 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
407 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
408 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
409 |
if (0 != init_dstream(self)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
410 |
Py_DECREF(result); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
411 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
412 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
413 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
414 |
result->decompressor = self; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
415 |
Py_INCREF(result->decompressor); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
416 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
417 |
return result; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
418 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
419 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
420 |
PyDoc_STRVAR(Decompressor_read_from__doc__, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
421 |
"read_from(reader[, read_size=default, write_size=default, skip_bytes=0])\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
422 |
"Read compressed data and return an iterator\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
423 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
424 |
"Returns an iterator of decompressed data chunks produced from reading from\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
425 |
"the ``reader``.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
426 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
427 |
"Compressed data will be obtained from ``reader`` by calling the\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
428 |
"``read(size)`` method of it. The source data will be streamed into a\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
429 |
"decompressor. As decompressed data is available, it will be exposed to the\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
430 |
"returned iterator.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
431 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
432 |
"Data is ``read()`` in chunks of size ``read_size`` and exposed to the\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
433 |
"iterator in chunks of size ``write_size``. The default values are the input\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
434 |
"and output sizes for a zstd streaming decompressor.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
435 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
436 |
"There is also support for skipping the first ``skip_bytes`` of data from\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
437 |
"the source.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
438 |
); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
439 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
440 |
static ZstdDecompressorIterator* Decompressor_read_from(ZstdDecompressor* self, PyObject* args, PyObject* kwargs) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
441 |
static char* kwlist[] = { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
442 |
"reader", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
443 |
"read_size", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
444 |
"write_size", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
445 |
"skip_bytes", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
446 |
NULL |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
447 |
}; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
448 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
449 |
PyObject* reader; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
450 |
size_t inSize = ZSTD_DStreamInSize(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
451 |
size_t outSize = ZSTD_DStreamOutSize(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
452 |
ZstdDecompressorIterator* result; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
453 |
size_t skipBytes = 0; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
454 |
|
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
455 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|kkk:read_from", kwlist, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
456 |
&reader, &inSize, &outSize, &skipBytes)) { |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
457 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
458 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
459 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
460 |
if (skipBytes >= inSize) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
461 |
PyErr_SetString(PyExc_ValueError, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
462 |
"skip_bytes must be smaller than read_size"); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
463 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
464 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
465 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
466 |
result = (ZstdDecompressorIterator*)PyObject_CallObject((PyObject*)&ZstdDecompressorIteratorType, NULL); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
467 |
if (!result) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
468 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
469 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
470 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
471 |
if (PyObject_HasAttrString(reader, "read")) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
472 |
result->reader = reader; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
473 |
Py_INCREF(result->reader); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
474 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
475 |
else if (1 == PyObject_CheckBuffer(reader)) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
476 |
/* Object claims it is a buffer. Try to get a handle to it. */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
477 |
result->buffer = PyMem_Malloc(sizeof(Py_buffer)); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
478 |
if (!result->buffer) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
479 |
goto except; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
480 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
481 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
482 |
memset(result->buffer, 0, sizeof(Py_buffer)); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
483 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
484 |
if (0 != PyObject_GetBuffer(reader, result->buffer, PyBUF_CONTIG_RO)) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
485 |
goto except; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
486 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
487 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
488 |
else { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
489 |
PyErr_SetString(PyExc_ValueError, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
490 |
"must pass an object with a read() method or conforms to buffer protocol"); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
491 |
goto except; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
492 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
493 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
494 |
result->decompressor = self; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
495 |
Py_INCREF(result->decompressor); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
496 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
497 |
result->inSize = inSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
498 |
result->outSize = outSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
499 |
result->skipBytes = skipBytes; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
500 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
501 |
if (0 != init_dstream(self)) { |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
502 |
goto except; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
503 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
504 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
505 |
result->input.src = PyMem_Malloc(inSize); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
506 |
if (!result->input.src) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
507 |
PyErr_NoMemory(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
508 |
goto except; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
509 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
510 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
511 |
goto finally; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
512 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
513 |
except: |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
514 |
Py_CLEAR(result->reader); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
515 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
516 |
if (result->buffer) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
517 |
PyBuffer_Release(result->buffer); |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
518 |
Py_CLEAR(result->buffer); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
519 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
520 |
|
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
521 |
Py_CLEAR(result); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
522 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
523 |
finally: |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
524 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
525 |
return result; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
526 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
527 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
528 |
PyDoc_STRVAR(Decompressor_write_to__doc__, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
529 |
"Create a context manager to write decompressed data to an object.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
530 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
531 |
"The passed object must have a ``write()`` method.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
532 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
533 |
"The caller feeds intput data to the object by calling ``write(data)``.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
534 |
"Decompressed data is written to the argument given as it is decompressed.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
535 |
"\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
536 |
"An optional ``write_size`` argument defines the size of chunks to\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
537 |
"``write()`` to the writer. It defaults to the default output size for a zstd\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
538 |
"streaming decompressor.\n" |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
539 |
); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
540 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
541 |
static ZstdDecompressionWriter* Decompressor_write_to(ZstdDecompressor* self, PyObject* args, PyObject* kwargs) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
542 |
static char* kwlist[] = { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
543 |
"writer", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
544 |
"write_size", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
545 |
NULL |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
546 |
}; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
547 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
548 |
PyObject* writer; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
549 |
size_t outSize = ZSTD_DStreamOutSize(); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
550 |
ZstdDecompressionWriter* result; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
551 |
|
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
552 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|k:write_to", kwlist, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
553 |
&writer, &outSize)) { |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
554 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
555 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
556 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
557 |
if (!PyObject_HasAttrString(writer, "write")) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
558 |
PyErr_SetString(PyExc_ValueError, "must pass an object with a write() method"); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
559 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
560 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
561 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
562 |
result = (ZstdDecompressionWriter*)PyObject_CallObject((PyObject*)&ZstdDecompressionWriterType, NULL); |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
563 |
if (!result) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
564 |
return NULL; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
565 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
566 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
567 |
result->decompressor = self; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
568 |
Py_INCREF(result->decompressor); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
569 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
570 |
result->writer = writer; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
571 |
Py_INCREF(result->writer); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
572 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
573 |
result->outSize = outSize; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
574 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
575 |
return result; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
576 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
577 |
|
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
578 |
PyDoc_STRVAR(Decompressor_decompress_content_dict_chain__doc__, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
579 |
"Decompress a series of chunks using the content dictionary chaining technique\n" |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
580 |
); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
581 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
582 |
static PyObject* Decompressor_decompress_content_dict_chain(PyObject* self, PyObject* args, PyObject* kwargs) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
583 |
static char* kwlist[] = { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
584 |
"frames", |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
585 |
NULL |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
586 |
}; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
587 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
588 |
PyObject* chunks; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
589 |
Py_ssize_t chunksLen; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
590 |
Py_ssize_t chunkIndex; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
591 |
char parity = 0; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
592 |
PyObject* chunk; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
593 |
char* chunkData; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
594 |
Py_ssize_t chunkSize; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
595 |
ZSTD_DCtx* dctx = NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
596 |
size_t zresult; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
597 |
ZSTD_frameParams frameParams; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
598 |
void* buffer1 = NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
599 |
size_t buffer1Size = 0; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
600 |
size_t buffer1ContentSize = 0; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
601 |
void* buffer2 = NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
602 |
size_t buffer2Size = 0; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
603 |
size_t buffer2ContentSize = 0; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
604 |
void* destBuffer = NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
605 |
PyObject* result = NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
606 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
607 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O!:decompress_content_dict_chain", |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
608 |
kwlist, &PyList_Type, &chunks)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
609 |
return NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
610 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
611 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
612 |
chunksLen = PyList_Size(chunks); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
613 |
if (!chunksLen) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
614 |
PyErr_SetString(PyExc_ValueError, "empty input chain"); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
615 |
return NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
616 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
617 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
618 |
/* The first chunk should not be using a dictionary. We handle it specially. */ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
619 |
chunk = PyList_GetItem(chunks, 0); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
620 |
if (!PyBytes_Check(chunk)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
621 |
PyErr_SetString(PyExc_ValueError, "chunk 0 must be bytes"); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
622 |
return NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
623 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
624 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
625 |
/* We require that all chunks be zstd frames and that they have content size set. */ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
626 |
PyBytes_AsStringAndSize(chunk, &chunkData, &chunkSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
627 |
zresult = ZSTD_getFrameParams(&frameParams, (void*)chunkData, chunkSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
628 |
if (ZSTD_isError(zresult)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
629 |
PyErr_SetString(PyExc_ValueError, "chunk 0 is not a valid zstd frame"); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
630 |
return NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
631 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
632 |
else if (zresult) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
633 |
PyErr_SetString(PyExc_ValueError, "chunk 0 is too small to contain a zstd frame"); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
634 |
return NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
635 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
636 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
637 |
if (0 == frameParams.frameContentSize) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
638 |
PyErr_SetString(PyExc_ValueError, "chunk 0 missing content size in frame"); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
639 |
return NULL; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
640 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
641 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
642 |
dctx = ZSTD_createDCtx(); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
643 |
if (!dctx) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
644 |
PyErr_NoMemory(); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
645 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
646 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
647 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
648 |
buffer1Size = frameParams.frameContentSize; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
649 |
buffer1 = PyMem_Malloc(buffer1Size); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
650 |
if (!buffer1) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
651 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
652 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
653 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
654 |
Py_BEGIN_ALLOW_THREADS |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
655 |
zresult = ZSTD_decompressDCtx(dctx, buffer1, buffer1Size, chunkData, chunkSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
656 |
Py_END_ALLOW_THREADS |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
657 |
if (ZSTD_isError(zresult)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
658 |
PyErr_Format(ZstdError, "could not decompress chunk 0: %s", ZSTD_getErrorName(zresult)); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
659 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
660 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
661 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
662 |
buffer1ContentSize = zresult; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
663 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
664 |
/* Special case of a simple chain. */ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
665 |
if (1 == chunksLen) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
666 |
result = PyBytes_FromStringAndSize(buffer1, buffer1Size); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
667 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
668 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
669 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
670 |
/* This should ideally look at next chunk. But this is slightly simpler. */ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
671 |
buffer2Size = frameParams.frameContentSize; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
672 |
buffer2 = PyMem_Malloc(buffer2Size); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
673 |
if (!buffer2) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
674 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
675 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
676 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
677 |
/* For each subsequent chunk, use the previous fulltext as a content dictionary. |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
678 |
Our strategy is to have 2 buffers. One holds the previous fulltext (to be |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
679 |
used as a content dictionary) and the other holds the new fulltext. The |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
680 |
buffers grow when needed but never decrease in size. This limits the |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
681 |
memory allocator overhead. |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
682 |
*/ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
683 |
for (chunkIndex = 1; chunkIndex < chunksLen; chunkIndex++) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
684 |
chunk = PyList_GetItem(chunks, chunkIndex); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
685 |
if (!PyBytes_Check(chunk)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
686 |
PyErr_Format(PyExc_ValueError, "chunk %zd must be bytes", chunkIndex); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
687 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
688 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
689 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
690 |
PyBytes_AsStringAndSize(chunk, &chunkData, &chunkSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
691 |
zresult = ZSTD_getFrameParams(&frameParams, (void*)chunkData, chunkSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
692 |
if (ZSTD_isError(zresult)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
693 |
PyErr_Format(PyExc_ValueError, "chunk %zd is not a valid zstd frame", chunkIndex); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
694 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
695 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
696 |
else if (zresult) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
697 |
PyErr_Format(PyExc_ValueError, "chunk %zd is too small to contain a zstd frame", chunkIndex); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
698 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
699 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
700 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
701 |
if (0 == frameParams.frameContentSize) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
702 |
PyErr_Format(PyExc_ValueError, "chunk %zd missing content size in frame", chunkIndex); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
703 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
704 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
705 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
706 |
parity = chunkIndex % 2; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
707 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
708 |
/* This could definitely be abstracted to reduce code duplication. */ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
709 |
if (parity) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
710 |
/* Resize destination buffer to hold larger content. */ |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
711 |
if (buffer2Size < frameParams.frameContentSize) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
712 |
buffer2Size = frameParams.frameContentSize; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
713 |
destBuffer = PyMem_Realloc(buffer2, buffer2Size); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
714 |
if (!destBuffer) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
715 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
716 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
717 |
buffer2 = destBuffer; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
718 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
719 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
720 |
Py_BEGIN_ALLOW_THREADS |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
721 |
zresult = ZSTD_decompress_usingDict(dctx, buffer2, buffer2Size, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
722 |
chunkData, chunkSize, buffer1, buffer1ContentSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
723 |
Py_END_ALLOW_THREADS |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
724 |
if (ZSTD_isError(zresult)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
725 |
PyErr_Format(ZstdError, "could not decompress chunk %zd: %s", |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
726 |
chunkIndex, ZSTD_getErrorName(zresult)); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
727 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
728 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
729 |
buffer2ContentSize = zresult; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
730 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
731 |
else { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
732 |
if (buffer1Size < frameParams.frameContentSize) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
733 |
buffer1Size = frameParams.frameContentSize; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
734 |
destBuffer = PyMem_Realloc(buffer1, buffer1Size); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
735 |
if (!destBuffer) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
736 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
737 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
738 |
buffer1 = destBuffer; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
739 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
740 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
741 |
Py_BEGIN_ALLOW_THREADS |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
742 |
zresult = ZSTD_decompress_usingDict(dctx, buffer1, buffer1Size, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
743 |
chunkData, chunkSize, buffer2, buffer2ContentSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
744 |
Py_END_ALLOW_THREADS |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
745 |
if (ZSTD_isError(zresult)) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
746 |
PyErr_Format(ZstdError, "could not decompress chunk %zd: %s", |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
747 |
chunkIndex, ZSTD_getErrorName(zresult)); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
748 |
goto finally; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
749 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
750 |
buffer1ContentSize = zresult; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
751 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
752 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
753 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
754 |
result = PyBytes_FromStringAndSize(parity ? buffer2 : buffer1, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
755 |
parity ? buffer2ContentSize : buffer1ContentSize); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
756 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
757 |
finally: |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
758 |
if (buffer2) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
759 |
PyMem_Free(buffer2); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
760 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
761 |
if (buffer1) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
762 |
PyMem_Free(buffer1); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
763 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
764 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
765 |
if (dctx) { |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
766 |
ZSTD_freeDCtx(dctx); |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
767 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
768 |
|
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
769 |
return result; |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
770 |
} |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
771 |
|
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
772 |
typedef struct { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
773 |
void* sourceData; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
774 |
size_t sourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
775 |
unsigned long long destSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
776 |
} FramePointer; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
777 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
778 |
typedef struct { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
779 |
FramePointer* frames; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
780 |
Py_ssize_t framesSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
781 |
unsigned long long compressedSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
782 |
} FrameSources; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
783 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
784 |
typedef struct { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
785 |
void* dest; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
786 |
Py_ssize_t destSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
787 |
BufferSegment* segments; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
788 |
Py_ssize_t segmentsSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
789 |
} DestBuffer; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
790 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
791 |
typedef enum { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
792 |
WorkerError_none = 0, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
793 |
WorkerError_zstd = 1, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
794 |
WorkerError_memory = 2, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
795 |
WorkerError_sizeMismatch = 3, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
796 |
WorkerError_unknownSize = 4, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
797 |
} WorkerError; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
798 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
799 |
typedef struct { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
800 |
/* Source records and length */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
801 |
FramePointer* framePointers; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
802 |
/* Which records to process. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
803 |
Py_ssize_t startOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
804 |
Py_ssize_t endOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
805 |
unsigned long long totalSourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
806 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
807 |
/* Compression state and settings. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
808 |
ZSTD_DCtx* dctx; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
809 |
ZSTD_DDict* ddict; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
810 |
int requireOutputSizes; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
811 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
812 |
/* Output storage. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
813 |
DestBuffer* destBuffers; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
814 |
Py_ssize_t destCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
815 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
816 |
/* Item that error occurred on. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
817 |
Py_ssize_t errorOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
818 |
/* If an error occurred. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
819 |
WorkerError error; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
820 |
/* result from zstd decompression operation */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
821 |
size_t zresult; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
822 |
} WorkerState; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
823 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
824 |
static void decompress_worker(WorkerState* state) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
825 |
size_t allocationSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
826 |
DestBuffer* destBuffer; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
827 |
Py_ssize_t frameIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
828 |
Py_ssize_t localOffset = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
829 |
Py_ssize_t currentBufferStartIndex = state->startOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
830 |
Py_ssize_t remainingItems = state->endOffset - state->startOffset + 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
831 |
void* tmpBuf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
832 |
Py_ssize_t destOffset = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
833 |
FramePointer* framePointers = state->framePointers; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
834 |
size_t zresult; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
835 |
unsigned long long totalOutputSize = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
836 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
837 |
assert(NULL == state->destBuffers); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
838 |
assert(0 == state->destCount); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
839 |
assert(state->endOffset - state->startOffset >= 0); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
840 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
841 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
842 |
* We need to allocate a buffer to hold decompressed data. How we do this |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
843 |
* depends on what we know about the output. The following scenarios are |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
844 |
* possible: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
845 |
* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
846 |
* 1. All structs defining frames declare the output size. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
847 |
* 2. The decompressed size is embedded within the zstd frame. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
848 |
* 3. The decompressed size is not stored anywhere. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
849 |
* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
850 |
* For now, we only support #1 and #2. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
851 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
852 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
853 |
/* Resolve ouput segments. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
854 |
for (frameIndex = state->startOffset; frameIndex <= state->endOffset; frameIndex++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
855 |
FramePointer* fp = &framePointers[frameIndex]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
856 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
857 |
if (0 == fp->destSize) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
858 |
fp->destSize = ZSTD_getDecompressedSize(fp->sourceData, fp->sourceSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
859 |
if (0 == fp->destSize && state->requireOutputSizes) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
860 |
state->error = WorkerError_unknownSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
861 |
state->errorOffset = frameIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
862 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
863 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
864 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
865 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
866 |
totalOutputSize += fp->destSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
867 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
868 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
869 |
state->destBuffers = calloc(1, sizeof(DestBuffer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
870 |
if (NULL == state->destBuffers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
871 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
872 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
873 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
874 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
875 |
state->destCount = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
876 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
877 |
destBuffer = &state->destBuffers[state->destCount - 1]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
878 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
879 |
assert(framePointers[state->startOffset].destSize > 0); /* For now. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
880 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
881 |
allocationSize = roundpow2(state->totalSourceSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
882 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
883 |
if (framePointers[state->startOffset].destSize > allocationSize) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
884 |
allocationSize = roundpow2(framePointers[state->startOffset].destSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
885 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
886 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
887 |
destBuffer->dest = malloc(allocationSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
888 |
if (NULL == destBuffer->dest) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
889 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
890 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
891 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
892 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
893 |
destBuffer->destSize = allocationSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
894 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
895 |
destBuffer->segments = calloc(remainingItems, sizeof(BufferSegment)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
896 |
if (NULL == destBuffer->segments) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
897 |
/* Caller will free state->dest as part of cleanup. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
898 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
899 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
900 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
901 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
902 |
destBuffer->segmentsSize = remainingItems; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
903 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
904 |
for (frameIndex = state->startOffset; frameIndex <= state->endOffset; frameIndex++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
905 |
const void* source = framePointers[frameIndex].sourceData; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
906 |
const size_t sourceSize = framePointers[frameIndex].sourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
907 |
void* dest; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
908 |
const size_t decompressedSize = framePointers[frameIndex].destSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
909 |
size_t destAvailable = destBuffer->destSize - destOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
910 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
911 |
assert(decompressedSize > 0); /* For now. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
912 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
913 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
914 |
* Not enough space in current buffer. Finish current before and allocate and |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
915 |
* switch to a new one. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
916 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
917 |
if (decompressedSize > destAvailable) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
918 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
919 |
* Shrinking the destination buffer is optional. But it should be cheap, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
920 |
* so we just do it. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
921 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
922 |
if (destAvailable) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
923 |
tmpBuf = realloc(destBuffer->dest, destOffset); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
924 |
if (NULL == tmpBuf) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
925 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
926 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
927 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
928 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
929 |
destBuffer->dest = tmpBuf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
930 |
destBuffer->destSize = destOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
931 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
932 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
933 |
/* Truncate segments buffer. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
934 |
tmpBuf = realloc(destBuffer->segments, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
935 |
(frameIndex - currentBufferStartIndex) * sizeof(BufferSegment)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
936 |
if (NULL == tmpBuf) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
937 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
938 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
939 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
940 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
941 |
destBuffer->segments = tmpBuf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
942 |
destBuffer->segmentsSize = frameIndex - currentBufferStartIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
943 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
944 |
/* Grow space for new DestBuffer. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
945 |
tmpBuf = realloc(state->destBuffers, (state->destCount + 1) * sizeof(DestBuffer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
946 |
if (NULL == tmpBuf) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
947 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
948 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
949 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
950 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
951 |
state->destBuffers = tmpBuf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
952 |
state->destCount++; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
953 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
954 |
destBuffer = &state->destBuffers[state->destCount - 1]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
955 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
956 |
/* Don't take any chances will non-NULL pointers. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
957 |
memset(destBuffer, 0, sizeof(DestBuffer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
958 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
959 |
allocationSize = roundpow2(state->totalSourceSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
960 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
961 |
if (decompressedSize > allocationSize) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
962 |
allocationSize = roundpow2(decompressedSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
963 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
964 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
965 |
destBuffer->dest = malloc(allocationSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
966 |
if (NULL == destBuffer->dest) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
967 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
968 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
969 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
970 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
971 |
destBuffer->destSize = allocationSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
972 |
destAvailable = allocationSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
973 |
destOffset = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
974 |
localOffset = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
975 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
976 |
destBuffer->segments = calloc(remainingItems, sizeof(BufferSegment)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
977 |
if (NULL == destBuffer->segments) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
978 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
979 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
980 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
981 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
982 |
destBuffer->segmentsSize = remainingItems; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
983 |
currentBufferStartIndex = frameIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
984 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
985 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
986 |
dest = (char*)destBuffer->dest + destOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
987 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
988 |
if (state->ddict) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
989 |
zresult = ZSTD_decompress_usingDDict(state->dctx, dest, decompressedSize, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
990 |
source, sourceSize, state->ddict); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
991 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
992 |
else { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
993 |
zresult = ZSTD_decompressDCtx(state->dctx, dest, decompressedSize, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
994 |
source, sourceSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
995 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
996 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
997 |
if (ZSTD_isError(zresult)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
998 |
state->error = WorkerError_zstd; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
999 |
state->zresult = zresult; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1000 |
state->errorOffset = frameIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1001 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1002 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1003 |
else if (zresult != decompressedSize) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1004 |
state->error = WorkerError_sizeMismatch; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1005 |
state->zresult = zresult; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1006 |
state->errorOffset = frameIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1007 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1008 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1009 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1010 |
destBuffer->segments[localOffset].offset = destOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1011 |
destBuffer->segments[localOffset].length = decompressedSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1012 |
destOffset += zresult; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1013 |
localOffset++; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1014 |
remainingItems--; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1015 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1016 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1017 |
if (destBuffer->destSize > destOffset) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1018 |
tmpBuf = realloc(destBuffer->dest, destOffset); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1019 |
if (NULL == tmpBuf) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1020 |
state->error = WorkerError_memory; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1021 |
return; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1022 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1023 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1024 |
destBuffer->dest = tmpBuf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1025 |
destBuffer->destSize = destOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1026 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1027 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1028 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1029 |
ZstdBufferWithSegmentsCollection* decompress_from_framesources(ZstdDecompressor* decompressor, FrameSources* frames, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1030 |
unsigned int threadCount) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1031 |
void* dictData = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1032 |
size_t dictSize = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1033 |
Py_ssize_t i = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1034 |
int errored = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1035 |
Py_ssize_t segmentsCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1036 |
ZstdBufferWithSegments* bws = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1037 |
PyObject* resultArg = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1038 |
Py_ssize_t resultIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1039 |
ZstdBufferWithSegmentsCollection* result = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1040 |
FramePointer* framePointers = frames->frames; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1041 |
unsigned long long workerBytes = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1042 |
int currentThread = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1043 |
Py_ssize_t workerStartOffset = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1044 |
POOL_ctx* pool = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1045 |
WorkerState* workerStates = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1046 |
unsigned long long bytesPerWorker; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1047 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1048 |
/* Caller should normalize 0 and negative values to 1 or larger. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1049 |
assert(threadCount >= 1); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1050 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1051 |
/* More threads than inputs makes no sense under any conditions. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1052 |
threadCount = frames->framesSize < threadCount ? (unsigned int)frames->framesSize |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1053 |
: threadCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1054 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1055 |
/* TODO lower thread count if input size is too small and threads would just |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1056 |
add overhead. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1057 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1058 |
if (decompressor->dict) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1059 |
dictData = decompressor->dict->dictData; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1060 |
dictSize = decompressor->dict->dictSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1061 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1062 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1063 |
if (dictData && !decompressor->ddict) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1064 |
Py_BEGIN_ALLOW_THREADS |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1065 |
decompressor->ddict = ZSTD_createDDict_byReference(dictData, dictSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1066 |
Py_END_ALLOW_THREADS |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1067 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1068 |
if (!decompressor->ddict) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1069 |
PyErr_SetString(ZstdError, "could not create decompression dict"); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1070 |
return NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1071 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1072 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1073 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1074 |
/* If threadCount==1, we don't start a thread pool. But we do leverage the |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1075 |
same API for dispatching work. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1076 |
workerStates = PyMem_Malloc(threadCount * sizeof(WorkerState)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1077 |
if (NULL == workerStates) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1078 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1079 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1080 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1081 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1082 |
memset(workerStates, 0, threadCount * sizeof(WorkerState)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1083 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1084 |
if (threadCount > 1) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1085 |
pool = POOL_create(threadCount, 1); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1086 |
if (NULL == pool) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1087 |
PyErr_SetString(ZstdError, "could not initialize zstd thread pool"); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1088 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1089 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1090 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1091 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1092 |
bytesPerWorker = frames->compressedSize / threadCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1093 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1094 |
for (i = 0; i < threadCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1095 |
workerStates[i].dctx = ZSTD_createDCtx(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1096 |
if (NULL == workerStates[i].dctx) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1097 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1098 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1099 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1100 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1101 |
ZSTD_copyDCtx(workerStates[i].dctx, decompressor->dctx); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1102 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1103 |
workerStates[i].ddict = decompressor->ddict; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1104 |
workerStates[i].framePointers = framePointers; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1105 |
workerStates[i].requireOutputSizes = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1106 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1107 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1108 |
Py_BEGIN_ALLOW_THREADS |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1109 |
/* There are many ways to split work among workers. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1110 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1111 |
For now, we take a simple approach of splitting work so each worker |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1112 |
gets roughly the same number of input bytes. This will result in more |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1113 |
starvation than running N>threadCount jobs. But it avoids complications |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1114 |
around state tracking, which could involve extra locking. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1115 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1116 |
for (i = 0; i < frames->framesSize; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1117 |
workerBytes += frames->frames[i].sourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1118 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1119 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1120 |
* The last worker/thread needs to handle all remaining work. Don't |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1121 |
* trigger it prematurely. Defer to the block outside of the loop. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1122 |
* (But still process this loop so workerBytes is correct. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1123 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1124 |
if (currentThread == threadCount - 1) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1125 |
continue; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1126 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1127 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1128 |
if (workerBytes >= bytesPerWorker) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1129 |
workerStates[currentThread].startOffset = workerStartOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1130 |
workerStates[currentThread].endOffset = i; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1131 |
workerStates[currentThread].totalSourceSize = workerBytes; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1132 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1133 |
if (threadCount > 1) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1134 |
POOL_add(pool, (POOL_function)decompress_worker, &workerStates[currentThread]); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1135 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1136 |
else { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1137 |
decompress_worker(&workerStates[currentThread]); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1138 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1139 |
currentThread++; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1140 |
workerStartOffset = i + 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1141 |
workerBytes = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1142 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1143 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1144 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1145 |
if (workerBytes) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1146 |
workerStates[currentThread].startOffset = workerStartOffset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1147 |
workerStates[currentThread].endOffset = frames->framesSize - 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1148 |
workerStates[currentThread].totalSourceSize = workerBytes; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1149 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1150 |
if (threadCount > 1) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1151 |
POOL_add(pool, (POOL_function)decompress_worker, &workerStates[currentThread]); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1152 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1153 |
else { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1154 |
decompress_worker(&workerStates[currentThread]); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1155 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1156 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1157 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1158 |
if (threadCount > 1) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1159 |
POOL_free(pool); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1160 |
pool = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1161 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1162 |
Py_END_ALLOW_THREADS |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1163 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1164 |
for (i = 0; i < threadCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1165 |
switch (workerStates[i].error) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1166 |
case WorkerError_none: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1167 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1168 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1169 |
case WorkerError_zstd: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1170 |
PyErr_Format(ZstdError, "error decompressing item %zd: %s", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1171 |
workerStates[i].errorOffset, ZSTD_getErrorName(workerStates[i].zresult)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1172 |
errored = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1173 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1174 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1175 |
case WorkerError_memory: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1176 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1177 |
errored = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1178 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1179 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1180 |
case WorkerError_sizeMismatch: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1181 |
PyErr_Format(ZstdError, "error decompressing item %zd: decompressed %zu bytes; expected %llu", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1182 |
workerStates[i].errorOffset, workerStates[i].zresult, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1183 |
framePointers[workerStates[i].errorOffset].destSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1184 |
errored = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1185 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1186 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1187 |
case WorkerError_unknownSize: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1188 |
PyErr_Format(PyExc_ValueError, "could not determine decompressed size of item %zd", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1189 |
workerStates[i].errorOffset); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1190 |
errored = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1191 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1192 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1193 |
default: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1194 |
PyErr_Format(ZstdError, "unhandled error type: %d; this is a bug", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1195 |
workerStates[i].error); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1196 |
errored = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1197 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1198 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1199 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1200 |
if (errored) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1201 |
break; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1202 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1203 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1204 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1205 |
if (errored) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1206 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1207 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1208 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1209 |
segmentsCount = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1210 |
for (i = 0; i < threadCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1211 |
segmentsCount += workerStates[i].destCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1212 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1213 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1214 |
resultArg = PyTuple_New(segmentsCount); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1215 |
if (NULL == resultArg) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1216 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1217 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1218 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1219 |
resultIndex = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1220 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1221 |
for (i = 0; i < threadCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1222 |
Py_ssize_t bufferIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1223 |
WorkerState* state = &workerStates[i]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1224 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1225 |
for (bufferIndex = 0; bufferIndex < state->destCount; bufferIndex++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1226 |
DestBuffer* destBuffer = &state->destBuffers[bufferIndex]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1227 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1228 |
bws = BufferWithSegments_FromMemory(destBuffer->dest, destBuffer->destSize, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1229 |
destBuffer->segments, destBuffer->segmentsSize); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1230 |
if (NULL == bws) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1231 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1232 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1233 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1234 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1235 |
* Memory for buffer and segments was allocated using malloc() in worker |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1236 |
* and the memory is transferred to the BufferWithSegments instance. So |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1237 |
* tell instance to use free() and NULL the reference in the state struct |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1238 |
* so it isn't freed below. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1239 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1240 |
bws->useFree = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1241 |
destBuffer->dest = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1242 |
destBuffer->segments = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1243 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1244 |
PyTuple_SET_ITEM(resultArg, resultIndex++, (PyObject*)bws); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1245 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1246 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1247 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1248 |
result = (ZstdBufferWithSegmentsCollection*)PyObject_CallObject( |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1249 |
(PyObject*)&ZstdBufferWithSegmentsCollectionType, resultArg); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1250 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1251 |
finally: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1252 |
Py_CLEAR(resultArg); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1253 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1254 |
if (workerStates) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1255 |
for (i = 0; i < threadCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1256 |
Py_ssize_t bufferIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1257 |
WorkerState* state = &workerStates[i]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1258 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1259 |
if (state->dctx) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1260 |
ZSTD_freeDCtx(state->dctx); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1261 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1262 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1263 |
for (bufferIndex = 0; bufferIndex < state->destCount; bufferIndex++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1264 |
if (state->destBuffers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1265 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1266 |
* Will be NULL if memory transfered to a BufferWithSegments. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1267 |
* Otherwise it is left over after an error occurred. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1268 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1269 |
free(state->destBuffers[bufferIndex].dest); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1270 |
free(state->destBuffers[bufferIndex].segments); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1271 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1272 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1273 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1274 |
free(state->destBuffers); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1275 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1276 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1277 |
PyMem_Free(workerStates); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1278 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1279 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1280 |
POOL_free(pool); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1281 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1282 |
return result; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1283 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1284 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1285 |
PyDoc_STRVAR(Decompressor_multi_decompress_to_buffer__doc__, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1286 |
"Decompress multiple frames to output buffers\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1287 |
"\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1288 |
"Receives a ``BufferWithSegments``, a ``BufferWithSegmentsCollection`` or a\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1289 |
"list of bytes-like objects. Each item in the passed collection should be a\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1290 |
"compressed zstd frame.\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1291 |
"\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1292 |
"Unless ``decompressed_sizes`` is specified, the content size *must* be\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1293 |
"written into the zstd frame header. If ``decompressed_sizes`` is specified,\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1294 |
"it is an object conforming to the buffer protocol that represents an array\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1295 |
"of 64-bit unsigned integers in the machine's native format. Specifying\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1296 |
"``decompressed_sizes`` avoids a pre-scan of each frame to determine its\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1297 |
"output size.\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1298 |
"\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1299 |
"Returns a ``BufferWithSegmentsCollection`` containing the decompressed\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1300 |
"data. All decompressed data is allocated in a single memory buffer. The\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1301 |
"``BufferWithSegments`` instance tracks which objects are at which offsets\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1302 |
"and their respective lengths.\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1303 |
"\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1304 |
"The ``threads`` argument controls how many threads to use for operations.\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1305 |
"Negative values will use the same number of threads as logical CPUs on the\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1306 |
"machine.\n" |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1307 |
); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1308 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1309 |
static ZstdBufferWithSegmentsCollection* Decompressor_multi_decompress_to_buffer(ZstdDecompressor* self, PyObject* args, PyObject* kwargs) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1310 |
static char* kwlist[] = { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1311 |
"frames", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1312 |
"decompressed_sizes", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1313 |
"threads", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1314 |
NULL |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1315 |
}; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1316 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1317 |
PyObject* frames; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1318 |
Py_buffer frameSizes; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1319 |
int threads = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1320 |
Py_ssize_t frameCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1321 |
Py_buffer* frameBuffers = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1322 |
FramePointer* framePointers = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1323 |
unsigned long long* frameSizesP = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1324 |
unsigned long long totalInputSize = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1325 |
FrameSources frameSources; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1326 |
ZstdBufferWithSegmentsCollection* result = NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1327 |
Py_ssize_t i; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1328 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1329 |
memset(&frameSizes, 0, sizeof(frameSizes)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1330 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1331 |
#if PY_MAJOR_VERSION >= 3 |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1332 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|y*i:multi_decompress_to_buffer", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1333 |
#else |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1334 |
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O|s*i:multi_decompress_to_buffer", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1335 |
#endif |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1336 |
kwlist, &frames, &frameSizes, &threads)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1337 |
return NULL; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1338 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1339 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1340 |
if (frameSizes.buf) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1341 |
if (!PyBuffer_IsContiguous(&frameSizes, 'C') || frameSizes.ndim > 1) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1342 |
PyErr_SetString(PyExc_ValueError, "decompressed_sizes buffer should be contiguous and have a single dimension"); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1343 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1344 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1345 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1346 |
frameSizesP = (unsigned long long*)frameSizes.buf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1347 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1348 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1349 |
if (threads < 0) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1350 |
threads = cpu_count(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1351 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1352 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1353 |
if (threads < 2) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1354 |
threads = 1; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1355 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1356 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1357 |
if (PyObject_TypeCheck(frames, &ZstdBufferWithSegmentsType)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1358 |
ZstdBufferWithSegments* buffer = (ZstdBufferWithSegments*)frames; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1359 |
frameCount = buffer->segmentCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1360 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1361 |
if (frameSizes.buf && frameSizes.len != frameCount * (Py_ssize_t)sizeof(unsigned long long)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1362 |
PyErr_Format(PyExc_ValueError, "decompressed_sizes size mismatch; expected %zd, got %zd", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1363 |
frameCount * sizeof(unsigned long long), frameSizes.len); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1364 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1365 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1366 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1367 |
framePointers = PyMem_Malloc(frameCount * sizeof(FramePointer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1368 |
if (!framePointers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1369 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1370 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1371 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1372 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1373 |
for (i = 0; i < frameCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1374 |
void* sourceData; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1375 |
unsigned long long sourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1376 |
unsigned long long decompressedSize = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1377 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1378 |
if (buffer->segments[i].offset + buffer->segments[i].length > buffer->dataSize) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1379 |
PyErr_Format(PyExc_ValueError, "item %zd has offset outside memory area", i); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1380 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1381 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1382 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1383 |
sourceData = (char*)buffer->data + buffer->segments[i].offset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1384 |
sourceSize = buffer->segments[i].length; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1385 |
totalInputSize += sourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1386 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1387 |
if (frameSizesP) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1388 |
decompressedSize = frameSizesP[i]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1389 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1390 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1391 |
framePointers[i].sourceData = sourceData; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1392 |
framePointers[i].sourceSize = sourceSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1393 |
framePointers[i].destSize = decompressedSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1394 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1395 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1396 |
else if (PyObject_TypeCheck(frames, &ZstdBufferWithSegmentsCollectionType)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1397 |
Py_ssize_t offset = 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1398 |
ZstdBufferWithSegments* buffer; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1399 |
ZstdBufferWithSegmentsCollection* collection = (ZstdBufferWithSegmentsCollection*)frames; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1400 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1401 |
frameCount = BufferWithSegmentsCollection_length(collection); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1402 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1403 |
if (frameSizes.buf && frameSizes.len != frameCount) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1404 |
PyErr_Format(PyExc_ValueError, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1405 |
"decompressed_sizes size mismatch; expected %zd; got %zd", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1406 |
frameCount * sizeof(unsigned long long), frameSizes.len); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1407 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1408 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1409 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1410 |
framePointers = PyMem_Malloc(frameCount * sizeof(FramePointer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1411 |
if (NULL == framePointers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1412 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1413 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1414 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1415 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1416 |
/* Iterate the data structure directly because it is faster. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1417 |
for (i = 0; i < collection->bufferCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1418 |
Py_ssize_t segmentIndex; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1419 |
buffer = collection->buffers[i]; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1420 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1421 |
for (segmentIndex = 0; segmentIndex < buffer->segmentCount; segmentIndex++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1422 |
if (buffer->segments[segmentIndex].offset + buffer->segments[segmentIndex].length > buffer->dataSize) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1423 |
PyErr_Format(PyExc_ValueError, "item %zd has offset outside memory area", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1424 |
offset); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1425 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1426 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1427 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1428 |
totalInputSize += buffer->segments[segmentIndex].length; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1429 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1430 |
framePointers[offset].sourceData = (char*)buffer->data + buffer->segments[segmentIndex].offset; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1431 |
framePointers[offset].sourceSize = buffer->segments[segmentIndex].length; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1432 |
framePointers[offset].destSize = frameSizesP ? frameSizesP[offset] : 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1433 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1434 |
offset++; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1435 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1436 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1437 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1438 |
else if (PyList_Check(frames)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1439 |
frameCount = PyList_GET_SIZE(frames); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1440 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1441 |
if (frameSizes.buf && frameSizes.len != frameCount * (Py_ssize_t)sizeof(unsigned long long)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1442 |
PyErr_Format(PyExc_ValueError, "decompressed_sizes size mismatch; expected %zd, got %zd", |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1443 |
frameCount * sizeof(unsigned long long), frameSizes.len); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1444 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1445 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1446 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1447 |
framePointers = PyMem_Malloc(frameCount * sizeof(FramePointer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1448 |
if (!framePointers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1449 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1450 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1451 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1452 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1453 |
/* |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1454 |
* It is not clear whether Py_buffer.buf is still valid after |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1455 |
* PyBuffer_Release. So, we hold a reference to all Py_buffer instances |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1456 |
* for the duration of the operation. |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1457 |
*/ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1458 |
frameBuffers = PyMem_Malloc(frameCount * sizeof(Py_buffer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1459 |
if (NULL == frameBuffers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1460 |
PyErr_NoMemory(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1461 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1462 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1463 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1464 |
memset(frameBuffers, 0, frameCount * sizeof(Py_buffer)); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1465 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1466 |
/* Do a pass to assemble info about our input buffers and output sizes. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1467 |
for (i = 0; i < frameCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1468 |
if (0 != PyObject_GetBuffer(PyList_GET_ITEM(frames, i), |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1469 |
&frameBuffers[i], PyBUF_CONTIG_RO)) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1470 |
PyErr_Clear(); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1471 |
PyErr_Format(PyExc_TypeError, "item %zd not a bytes like object", i); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1472 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1473 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1474 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1475 |
totalInputSize += frameBuffers[i].len; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1476 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1477 |
framePointers[i].sourceData = frameBuffers[i].buf; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1478 |
framePointers[i].sourceSize = frameBuffers[i].len; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1479 |
framePointers[i].destSize = frameSizesP ? frameSizesP[i] : 0; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1480 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1481 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1482 |
else { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1483 |
PyErr_SetString(PyExc_TypeError, "argument must be list or BufferWithSegments"); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1484 |
goto finally; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1485 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1486 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1487 |
/* We now have an array with info about our inputs and outputs. Feed it into |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1488 |
our generic decompression function. */ |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1489 |
frameSources.frames = framePointers; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1490 |
frameSources.framesSize = frameCount; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1491 |
frameSources.compressedSize = totalInputSize; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1492 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1493 |
result = decompress_from_framesources(self, &frameSources, threads); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1494 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1495 |
finally: |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1496 |
if (frameSizes.buf) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1497 |
PyBuffer_Release(&frameSizes); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1498 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1499 |
PyMem_Free(framePointers); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1500 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1501 |
if (frameBuffers) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1502 |
for (i = 0; i < frameCount; i++) { |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1503 |
PyBuffer_Release(&frameBuffers[i]); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1504 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1505 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1506 |
PyMem_Free(frameBuffers); |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1507 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1508 |
|
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1509 |
return result; |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1510 |
} |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1511 |
|
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1512 |
static PyMethodDef Decompressor_methods[] = { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1513 |
{ "copy_stream", (PyCFunction)Decompressor_copy_stream, METH_VARARGS | METH_KEYWORDS, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1514 |
Decompressor_copy_stream__doc__ }, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1515 |
{ "decompress", (PyCFunction)Decompressor_decompress, METH_VARARGS | METH_KEYWORDS, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1516 |
Decompressor_decompress__doc__ }, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1517 |
{ "decompressobj", (PyCFunction)Decompressor_decompressobj, METH_NOARGS, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1518 |
Decompressor_decompressobj__doc__ }, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1519 |
{ "read_from", (PyCFunction)Decompressor_read_from, METH_VARARGS | METH_KEYWORDS, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1520 |
Decompressor_read_from__doc__ }, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1521 |
{ "write_to", (PyCFunction)Decompressor_write_to, METH_VARARGS | METH_KEYWORDS, |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1522 |
Decompressor_write_to__doc__ }, |
30924
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
1523 |
{ "decompress_content_dict_chain", (PyCFunction)Decompressor_decompress_content_dict_chain, |
c32454d69b85
zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30830
diff
changeset
|
1524 |
METH_VARARGS | METH_KEYWORDS, Decompressor_decompress_content_dict_chain__doc__ }, |
31799
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1525 |
{ "multi_decompress_to_buffer", (PyCFunction)Decompressor_multi_decompress_to_buffer, |
e0dc40530c5a
zstd: vendor python-zstandard 0.8.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30924
diff
changeset
|
1526 |
METH_VARARGS | METH_KEYWORDS, Decompressor_multi_decompress_to_buffer__doc__ }, |
30444
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1527 |
{ NULL, NULL } |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1528 |
}; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1529 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1530 |
PyTypeObject ZstdDecompressorType = { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1531 |
PyVarObject_HEAD_INIT(NULL, 0) |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1532 |
"zstd.ZstdDecompressor", /* tp_name */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1533 |
sizeof(ZstdDecompressor), /* tp_basicsize */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1534 |
0, /* tp_itemsize */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1535 |
(destructor)Decompressor_dealloc, /* tp_dealloc */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1536 |
0, /* tp_print */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1537 |
0, /* tp_getattr */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1538 |
0, /* tp_setattr */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1539 |
0, /* tp_compare */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1540 |
0, /* tp_repr */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1541 |
0, /* tp_as_number */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1542 |
0, /* tp_as_sequence */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1543 |
0, /* tp_as_mapping */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1544 |
0, /* tp_hash */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1545 |
0, /* tp_call */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1546 |
0, /* tp_str */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1547 |
0, /* tp_getattro */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1548 |
0, /* tp_setattro */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1549 |
0, /* tp_as_buffer */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1550 |
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1551 |
Decompressor__doc__, /* tp_doc */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1552 |
0, /* tp_traverse */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1553 |
0, /* tp_clear */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1554 |
0, /* tp_richcompare */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1555 |
0, /* tp_weaklistoffset */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1556 |
0, /* tp_iter */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1557 |
0, /* tp_iternext */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1558 |
Decompressor_methods, /* tp_methods */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1559 |
0, /* tp_members */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1560 |
0, /* tp_getset */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1561 |
0, /* tp_base */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1562 |
0, /* tp_dict */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1563 |
0, /* tp_descr_get */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1564 |
0, /* tp_descr_set */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1565 |
0, /* tp_dictoffset */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1566 |
(initproc)Decompressor_init, /* tp_init */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1567 |
0, /* tp_alloc */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1568 |
PyType_GenericNew, /* tp_new */ |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1569 |
}; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1570 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1571 |
void decompressor_module_init(PyObject* mod) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1572 |
Py_TYPE(&ZstdDecompressorType) = &PyType_Type; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1573 |
if (PyType_Ready(&ZstdDecompressorType) < 0) { |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1574 |
return; |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1575 |
} |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1576 |
|
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1577 |
Py_INCREF((PyObject*)&ZstdDecompressorType); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1578 |
PyModule_AddObject(mod, "ZstdDecompressor", |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1579 |
(PyObject*)&ZstdDecompressorType); |
b86a448a2965
zstd: vendor python-zstandard 0.5.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff
changeset
|
1580 |
} |