1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
/*[clinic input]
preserve
[clinic start generated code]*/
#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
# include "pycore_gc.h" // PyGC_Head
# include "pycore_runtime.h" // _Py_ID()
#endif
#include "pycore_abstract.h" // _PyNumber_Index()
#include "pycore_modsupport.h" // _PyArg_UnpackKeywords()
PyDoc_STRVAR(_zstd_ZstdDecompressor_new__doc__,
"ZstdDecompressor(zstd_dict=None, options=None)\n"
"--\n"
"\n"
"Create a decompressor object for decompressing data incrementally.\n"
"\n"
" zstd_dict\n"
" A ZstdDict object, a pre-trained Zstandard dictionary.\n"
" options\n"
" A dict object that contains advanced decompression parameters.\n"
"\n"
"Thread-safe at method level. For one-shot decompression, use the decompress()\n"
"function instead.");
static PyObject *
_zstd_ZstdDecompressor_new_impl(PyTypeObject *type, PyObject *zstd_dict,
PyObject *options);
static PyObject *
_zstd_ZstdDecompressor_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
PyObject *return_value = NULL;
#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
#define NUM_KEYWORDS 2
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(zstd_dict), &_Py_ID(options), },
};
#undef NUM_KEYWORDS
#define KWTUPLE (&_kwtuple.ob_base.ob_base)
#else // !Py_BUILD_CORE
# define KWTUPLE NULL
#endif // !Py_BUILD_CORE
static const char * const _keywords[] = {"zstd_dict", "options", NULL};
static _PyArg_Parser _parser = {
.keywords = _keywords,
.fname = "ZstdDecompressor",
.kwtuple = KWTUPLE,
};
#undef KWTUPLE
PyObject *argsbuf[2];
PyObject * const *fastargs;
Py_ssize_t nargs = PyTuple_GET_SIZE(args);
Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 0;
PyObject *zstd_dict = Py_None;
PyObject *options = Py_None;
fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser,
/*minpos*/ 0, /*maxpos*/ 2, /*minkw*/ 0, /*varpos*/ 0, argsbuf);
if (!fastargs) {
goto exit;
}
if (!noptargs) {
goto skip_optional_pos;
}
if (fastargs[0]) {
zstd_dict = fastargs[0];
if (!--noptargs) {
goto skip_optional_pos;
}
}
options = fastargs[1];
skip_optional_pos:
return_value = _zstd_ZstdDecompressor_new_impl(type, zstd_dict, options);
exit:
return return_value;
}
PyDoc_STRVAR(_zstd_ZstdDecompressor_unused_data__doc__,
"A bytes object of un-consumed input data.\n"
"\n"
"When ZstdDecompressor object stops after a frame is\n"
"decompressed, unused input data after the frame. Otherwise this will be b\'\'.");
#if defined(_zstd_ZstdDecompressor_unused_data_DOCSTR)
# undef _zstd_ZstdDecompressor_unused_data_DOCSTR
#endif
#define _zstd_ZstdDecompressor_unused_data_DOCSTR _zstd_ZstdDecompressor_unused_data__doc__
#if !defined(_zstd_ZstdDecompressor_unused_data_DOCSTR)
# define _zstd_ZstdDecompressor_unused_data_DOCSTR NULL
#endif
#if defined(_ZSTD_ZSTDDECOMPRESSOR_UNUSED_DATA_GETSETDEF)
# undef _ZSTD_ZSTDDECOMPRESSOR_UNUSED_DATA_GETSETDEF
# define _ZSTD_ZSTDDECOMPRESSOR_UNUSED_DATA_GETSETDEF {"unused_data", (getter)_zstd_ZstdDecompressor_unused_data_get, (setter)_zstd_ZstdDecompressor_unused_data_set, _zstd_ZstdDecompressor_unused_data_DOCSTR},
#else
# define _ZSTD_ZSTDDECOMPRESSOR_UNUSED_DATA_GETSETDEF {"unused_data", (getter)_zstd_ZstdDecompressor_unused_data_get, NULL, _zstd_ZstdDecompressor_unused_data_DOCSTR},
#endif
static PyObject *
_zstd_ZstdDecompressor_unused_data_get_impl(ZstdDecompressor *self);
static PyObject *
_zstd_ZstdDecompressor_unused_data_get(PyObject *self, void *Py_UNUSED(context))
{
return _zstd_ZstdDecompressor_unused_data_get_impl((ZstdDecompressor *)self);
}
PyDoc_STRVAR(_zstd_ZstdDecompressor_decompress__doc__,
"decompress($self, /, data, max_length=-1)\n"
"--\n"
"\n"
"Decompress *data*, returning uncompressed bytes if possible, or b\'\' otherwise.\n"
"\n"
" data\n"
" A bytes-like object, Zstandard data to be decompressed.\n"
" max_length\n"
" Maximum size of returned data. When it is negative, the size of\n"
" output buffer is unlimited. When it is nonnegative, returns at\n"
" most max_length bytes of decompressed data.\n"
"\n"
"If *max_length* is nonnegative, returns at most *max_length* bytes of\n"
"decompressed data. If this limit is reached and further output can be\n"
"produced, *self.needs_input* will be set to ``False``. In this case, the next\n"
"call to *decompress()* may provide *data* as b\'\' to obtain more of the output.\n"
"\n"
"If all of the input data was decompressed and returned (either because this\n"
"was less than *max_length* bytes, or because *max_length* was negative),\n"
"*self.needs_input* will be set to True.\n"
"\n"
"Attempting to decompress data after the end of a frame is reached raises an\n"
"EOFError. Any data found after the end of the frame is ignored and saved in\n"
"the self.unused_data attribute.");
#define _ZSTD_ZSTDDECOMPRESSOR_DECOMPRESS_METHODDEF \
{"decompress", _PyCFunction_CAST(_zstd_ZstdDecompressor_decompress), METH_FASTCALL|METH_KEYWORDS, _zstd_ZstdDecompressor_decompress__doc__},
static PyObject *
_zstd_ZstdDecompressor_decompress_impl(ZstdDecompressor *self,
Py_buffer *data,
Py_ssize_t max_length);
static PyObject *
_zstd_ZstdDecompressor_decompress(PyObject *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
PyObject *return_value = NULL;
#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
#define NUM_KEYWORDS 2
static struct {
PyGC_Head _this_is_not_used;
PyObject_VAR_HEAD
Py_hash_t ob_hash;
PyObject *ob_item[NUM_KEYWORDS];
} _kwtuple = {
.ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
.ob_hash = -1,
.ob_item = { &_Py_ID(data), &_Py_ID(max_length), },
};
#undef NUM_KEYWORDS
#define KWTUPLE (&_kwtuple.ob_base.ob_base)
#else // !Py_BUILD_CORE
# define KWTUPLE NULL
#endif // !Py_BUILD_CORE
static const char * const _keywords[] = {"data", "max_length", NULL};
static _PyArg_Parser _parser = {
.keywords = _keywords,
.fname = "decompress",
.kwtuple = KWTUPLE,
};
#undef KWTUPLE
PyObject *argsbuf[2];
Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
Py_buffer data = {NULL, NULL};
Py_ssize_t max_length = -1;
args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser,
/*minpos*/ 1, /*maxpos*/ 2, /*minkw*/ 0, /*varpos*/ 0, argsbuf);
if (!args) {
goto exit;
}
if (PyObject_GetBuffer(args[0], &data, PyBUF_SIMPLE) != 0) {
goto exit;
}
if (!noptargs) {
goto skip_optional_pos;
}
{
Py_ssize_t ival = -1;
PyObject *iobj = _PyNumber_Index(args[1]);
if (iobj != NULL) {
ival = PyLong_AsSsize_t(iobj);
Py_DECREF(iobj);
}
if (ival == -1 && PyErr_Occurred()) {
goto exit;
}
max_length = ival;
}
skip_optional_pos:
return_value = _zstd_ZstdDecompressor_decompress_impl((ZstdDecompressor *)self, &data, max_length);
exit:
/* Cleanup for data */
if (data.obj) {
PyBuffer_Release(&data);
}
return return_value;
}
/*[clinic end generated code: output=30c12ef047027ede input=a9049054013a1b77]*/
|
