1 /*[clinic input]
2 preserve
3 [clinic start generated code]*/
4
5 PyDoc_STRVAR(_lzma_LZMACompressor_compress__doc__,
6 "compress($self, data, /)\n"
7 "--\n"
8 "\n"
9 "Provide data to the compressor object.\n"
10 "\n"
11 "Returns a chunk of compressed data if possible, or b\'\' otherwise.\n"
12 "\n"
13 "When you have finished providing data to the compressor, call the\n"
14 "flush() method to finish the compression process.");
15
16 #define _LZMA_LZMACOMPRESSOR_COMPRESS_METHODDEF \
17 {"compress", (PyCFunction)_lzma_LZMACompressor_compress, METH_O, _lzma_LZMACompressor_compress__doc__},
18
19 static PyObject *
20 _lzma_LZMACompressor_compress_impl(Compressor *self, Py_buffer *data);
21
22 static PyObject *
_lzma_LZMACompressor_compress(Compressor * self,PyObject * arg)23 _lzma_LZMACompressor_compress(Compressor *self, PyObject *arg)
24 {
25 PyObject *return_value = NULL;
26 Py_buffer data = {NULL, NULL};
27
28 if (!PyArg_Parse(arg, "y*:compress", &data)) {
29 goto exit;
30 }
31 return_value = _lzma_LZMACompressor_compress_impl(self, &data);
32
33 exit:
34 /* Cleanup for data */
35 if (data.obj) {
36 PyBuffer_Release(&data);
37 }
38
39 return return_value;
40 }
41
42 PyDoc_STRVAR(_lzma_LZMACompressor_flush__doc__,
43 "flush($self, /)\n"
44 "--\n"
45 "\n"
46 "Finish the compression process.\n"
47 "\n"
48 "Returns the compressed data left in internal buffers.\n"
49 "\n"
50 "The compressor object may not be used after this method is called.");
51
52 #define _LZMA_LZMACOMPRESSOR_FLUSH_METHODDEF \
53 {"flush", (PyCFunction)_lzma_LZMACompressor_flush, METH_NOARGS, _lzma_LZMACompressor_flush__doc__},
54
55 static PyObject *
56 _lzma_LZMACompressor_flush_impl(Compressor *self);
57
58 static PyObject *
_lzma_LZMACompressor_flush(Compressor * self,PyObject * Py_UNUSED (ignored))59 _lzma_LZMACompressor_flush(Compressor *self, PyObject *Py_UNUSED(ignored))
60 {
61 return _lzma_LZMACompressor_flush_impl(self);
62 }
63
64 PyDoc_STRVAR(_lzma_LZMADecompressor_decompress__doc__,
65 "decompress($self, /, data, max_length=-1)\n"
66 "--\n"
67 "\n"
68 "Decompress *data*, returning uncompressed data as bytes.\n"
69 "\n"
70 "If *max_length* is nonnegative, returns at most *max_length* bytes of\n"
71 "decompressed data. If this limit is reached and further output can be\n"
72 "produced, *self.needs_input* will be set to ``False``. In this case, the next\n"
73 "call to *decompress()* may provide *data* as b\'\' to obtain more of the output.\n"
74 "\n"
75 "If all of the input data was decompressed and returned (either because this\n"
76 "was less than *max_length* bytes, or because *max_length* was negative),\n"
77 "*self.needs_input* will be set to True.\n"
78 "\n"
79 "Attempting to decompress data after the end of stream is reached raises an\n"
80 "EOFError. Any data found after the end of the stream is ignored and saved in\n"
81 "the unused_data attribute.");
82
83 #define _LZMA_LZMADECOMPRESSOR_DECOMPRESS_METHODDEF \
84 {"decompress", (PyCFunction)_lzma_LZMADecompressor_decompress, METH_FASTCALL|METH_KEYWORDS, _lzma_LZMADecompressor_decompress__doc__},
85
86 static PyObject *
87 _lzma_LZMADecompressor_decompress_impl(Decompressor *self, Py_buffer *data,
88 Py_ssize_t max_length);
89
90 static PyObject *
_lzma_LZMADecompressor_decompress(Decompressor * self,PyObject * const * args,Py_ssize_t nargs,PyObject * kwnames)91 _lzma_LZMADecompressor_decompress(Decompressor *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
92 {
93 PyObject *return_value = NULL;
94 static const char * const _keywords[] = {"data", "max_length", NULL};
95 static _PyArg_Parser _parser = {"y*|n:decompress", _keywords, 0};
96 Py_buffer data = {NULL, NULL};
97 Py_ssize_t max_length = -1;
98
99 if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser,
100 &data, &max_length)) {
101 goto exit;
102 }
103 return_value = _lzma_LZMADecompressor_decompress_impl(self, &data, max_length);
104
105 exit:
106 /* Cleanup for data */
107 if (data.obj) {
108 PyBuffer_Release(&data);
109 }
110
111 return return_value;
112 }
113
114 PyDoc_STRVAR(_lzma_LZMADecompressor___init____doc__,
115 "LZMADecompressor(format=FORMAT_AUTO, memlimit=None, filters=None)\n"
116 "--\n"
117 "\n"
118 "Create a decompressor object for decompressing data incrementally.\n"
119 "\n"
120 " format\n"
121 " Specifies the container format of the input stream. If this is\n"
122 " FORMAT_AUTO (the default), the decompressor will automatically detect\n"
123 " whether the input is FORMAT_XZ or FORMAT_ALONE. Streams created with\n"
124 " FORMAT_RAW cannot be autodetected.\n"
125 " memlimit\n"
126 " Limit the amount of memory used by the decompressor. This will cause\n"
127 " decompression to fail if the input cannot be decompressed within the\n"
128 " given limit.\n"
129 " filters\n"
130 " A custom filter chain. This argument is required for FORMAT_RAW, and\n"
131 " not accepted with any other format. When provided, this should be a\n"
132 " sequence of dicts, each indicating the ID and options for a single\n"
133 " filter.\n"
134 "\n"
135 "For one-shot decompression, use the decompress() function instead.");
136
137 static int
138 _lzma_LZMADecompressor___init___impl(Decompressor *self, int format,
139 PyObject *memlimit, PyObject *filters);
140
141 static int
_lzma_LZMADecompressor___init__(PyObject * self,PyObject * args,PyObject * kwargs)142 _lzma_LZMADecompressor___init__(PyObject *self, PyObject *args, PyObject *kwargs)
143 {
144 int return_value = -1;
145 static const char * const _keywords[] = {"format", "memlimit", "filters", NULL};
146 static _PyArg_Parser _parser = {"|iOO:LZMADecompressor", _keywords, 0};
147 int format = FORMAT_AUTO;
148 PyObject *memlimit = Py_None;
149 PyObject *filters = Py_None;
150
151 if (!_PyArg_ParseTupleAndKeywordsFast(args, kwargs, &_parser,
152 &format, &memlimit, &filters)) {
153 goto exit;
154 }
155 return_value = _lzma_LZMADecompressor___init___impl((Decompressor *)self, format, memlimit, filters);
156
157 exit:
158 return return_value;
159 }
160
161 PyDoc_STRVAR(_lzma_is_check_supported__doc__,
162 "is_check_supported($module, check_id, /)\n"
163 "--\n"
164 "\n"
165 "Test whether the given integrity check is supported.\n"
166 "\n"
167 "Always returns True for CHECK_NONE and CHECK_CRC32.");
168
169 #define _LZMA_IS_CHECK_SUPPORTED_METHODDEF \
170 {"is_check_supported", (PyCFunction)_lzma_is_check_supported, METH_O, _lzma_is_check_supported__doc__},
171
172 static PyObject *
173 _lzma_is_check_supported_impl(PyObject *module, int check_id);
174
175 static PyObject *
_lzma_is_check_supported(PyObject * module,PyObject * arg)176 _lzma_is_check_supported(PyObject *module, PyObject *arg)
177 {
178 PyObject *return_value = NULL;
179 int check_id;
180
181 if (!PyArg_Parse(arg, "i:is_check_supported", &check_id)) {
182 goto exit;
183 }
184 return_value = _lzma_is_check_supported_impl(module, check_id);
185
186 exit:
187 return return_value;
188 }
189
190 PyDoc_STRVAR(_lzma__encode_filter_properties__doc__,
191 "_encode_filter_properties($module, filter, /)\n"
192 "--\n"
193 "\n"
194 "Return a bytes object encoding the options (properties) of the filter specified by *filter* (a dict).\n"
195 "\n"
196 "The result does not include the filter ID itself, only the options.");
197
198 #define _LZMA__ENCODE_FILTER_PROPERTIES_METHODDEF \
199 {"_encode_filter_properties", (PyCFunction)_lzma__encode_filter_properties, METH_O, _lzma__encode_filter_properties__doc__},
200
201 static PyObject *
202 _lzma__encode_filter_properties_impl(PyObject *module, lzma_filter filter);
203
204 static PyObject *
_lzma__encode_filter_properties(PyObject * module,PyObject * arg)205 _lzma__encode_filter_properties(PyObject *module, PyObject *arg)
206 {
207 PyObject *return_value = NULL;
208 lzma_filter filter = {LZMA_VLI_UNKNOWN, NULL};
209
210 if (!PyArg_Parse(arg, "O&:_encode_filter_properties", lzma_filter_converter, &filter)) {
211 goto exit;
212 }
213 return_value = _lzma__encode_filter_properties_impl(module, filter);
214
215 exit:
216 /* Cleanup for filter */
217 if (filter.id != LZMA_VLI_UNKNOWN)
218 PyMem_Free(filter.options);
219
220 return return_value;
221 }
222
223 PyDoc_STRVAR(_lzma__decode_filter_properties__doc__,
224 "_decode_filter_properties($module, filter_id, encoded_props, /)\n"
225 "--\n"
226 "\n"
227 "Return a bytes object encoding the options (properties) of the filter specified by *filter* (a dict).\n"
228 "\n"
229 "The result does not include the filter ID itself, only the options.");
230
231 #define _LZMA__DECODE_FILTER_PROPERTIES_METHODDEF \
232 {"_decode_filter_properties", (PyCFunction)_lzma__decode_filter_properties, METH_FASTCALL, _lzma__decode_filter_properties__doc__},
233
234 static PyObject *
235 _lzma__decode_filter_properties_impl(PyObject *module, lzma_vli filter_id,
236 Py_buffer *encoded_props);
237
238 static PyObject *
_lzma__decode_filter_properties(PyObject * module,PyObject * const * args,Py_ssize_t nargs)239 _lzma__decode_filter_properties(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
240 {
241 PyObject *return_value = NULL;
242 lzma_vli filter_id;
243 Py_buffer encoded_props = {NULL, NULL};
244
245 if (!_PyArg_ParseStack(args, nargs, "O&y*:_decode_filter_properties",
246 lzma_vli_converter, &filter_id, &encoded_props)) {
247 goto exit;
248 }
249 return_value = _lzma__decode_filter_properties_impl(module, filter_id, &encoded_props);
250
251 exit:
252 /* Cleanup for encoded_props */
253 if (encoded_props.obj) {
254 PyBuffer_Release(&encoded_props);
255 }
256
257 return return_value;
258 }
259 /*[clinic end generated code: output=38c2d52362bf3712 input=a9049054013a1b77]*/
260