1 /*[clinic input]
2 preserve
3 [clinic start generated code]*/
4 
5 PyDoc_STRVAR(_bz2_BZ2Compressor_compress__doc__,
6 "compress($self, data, /)\n"
7 "--\n"
8 "\n"
9 "Provide data to the compressor object.\n"
10 "\n"
11 "Returns a chunk of compressed data if possible, or b\'\' otherwise.\n"
12 "\n"
13 "When you have finished providing data to the compressor, call the\n"
14 "flush() method to finish the compression process.");
15 
16 #define _BZ2_BZ2COMPRESSOR_COMPRESS_METHODDEF    \
17     {"compress", (PyCFunction)_bz2_BZ2Compressor_compress, METH_O, _bz2_BZ2Compressor_compress__doc__},
18 
19 static PyObject *
20 _bz2_BZ2Compressor_compress_impl(BZ2Compressor *self, Py_buffer *data);
21 
22 static PyObject *
_bz2_BZ2Compressor_compress(BZ2Compressor * self,PyObject * arg)23 _bz2_BZ2Compressor_compress(BZ2Compressor *self, PyObject *arg)
24 {
25     PyObject *return_value = NULL;
26     Py_buffer data = {NULL, NULL};
27 
28     if (PyObject_GetBuffer(arg, &data, PyBUF_SIMPLE) != 0) {
29         goto exit;
30     }
31     if (!PyBuffer_IsContiguous(&data, 'C')) {
32         _PyArg_BadArgument("compress", "argument", "contiguous buffer", arg);
33         goto exit;
34     }
35     return_value = _bz2_BZ2Compressor_compress_impl(self, &data);
36 
37 exit:
38     /* Cleanup for data */
39     if (data.obj) {
40        PyBuffer_Release(&data);
41     }
42 
43     return return_value;
44 }
45 
46 PyDoc_STRVAR(_bz2_BZ2Compressor_flush__doc__,
47 "flush($self, /)\n"
48 "--\n"
49 "\n"
50 "Finish the compression process.\n"
51 "\n"
52 "Returns the compressed data left in internal buffers.\n"
53 "\n"
54 "The compressor object may not be used after this method is called.");
55 
56 #define _BZ2_BZ2COMPRESSOR_FLUSH_METHODDEF    \
57     {"flush", (PyCFunction)_bz2_BZ2Compressor_flush, METH_NOARGS, _bz2_BZ2Compressor_flush__doc__},
58 
59 static PyObject *
60 _bz2_BZ2Compressor_flush_impl(BZ2Compressor *self);
61 
62 static PyObject *
_bz2_BZ2Compressor_flush(BZ2Compressor * self,PyObject * Py_UNUSED (ignored))63 _bz2_BZ2Compressor_flush(BZ2Compressor *self, PyObject *Py_UNUSED(ignored))
64 {
65     return _bz2_BZ2Compressor_flush_impl(self);
66 }
67 
68 PyDoc_STRVAR(_bz2_BZ2Compressor___init____doc__,
69 "BZ2Compressor(compresslevel=9, /)\n"
70 "--\n"
71 "\n"
72 "Create a compressor object for compressing data incrementally.\n"
73 "\n"
74 "  compresslevel\n"
75 "    Compression level, as a number between 1 and 9.\n"
76 "\n"
77 "For one-shot compression, use the compress() function instead.");
78 
79 static int
80 _bz2_BZ2Compressor___init___impl(BZ2Compressor *self, int compresslevel);
81 
82 static int
_bz2_BZ2Compressor___init__(PyObject * self,PyObject * args,PyObject * kwargs)83 _bz2_BZ2Compressor___init__(PyObject *self, PyObject *args, PyObject *kwargs)
84 {
85     int return_value = -1;
86     int compresslevel = 9;
87 
88     if (Py_IS_TYPE(self, &BZ2Compressor_Type) &&
89         !_PyArg_NoKeywords("BZ2Compressor", kwargs)) {
90         goto exit;
91     }
92     if (!_PyArg_CheckPositional("BZ2Compressor", PyTuple_GET_SIZE(args), 0, 1)) {
93         goto exit;
94     }
95     if (PyTuple_GET_SIZE(args) < 1) {
96         goto skip_optional;
97     }
98     if (PyFloat_Check(PyTuple_GET_ITEM(args, 0))) {
99         PyErr_SetString(PyExc_TypeError,
100                         "integer argument expected, got float" );
101         goto exit;
102     }
103     compresslevel = _PyLong_AsInt(PyTuple_GET_ITEM(args, 0));
104     if (compresslevel == -1 && PyErr_Occurred()) {
105         goto exit;
106     }
107 skip_optional:
108     return_value = _bz2_BZ2Compressor___init___impl((BZ2Compressor *)self, compresslevel);
109 
110 exit:
111     return return_value;
112 }
113 
114 PyDoc_STRVAR(_bz2_BZ2Decompressor_decompress__doc__,
115 "decompress($self, /, data, max_length=-1)\n"
116 "--\n"
117 "\n"
118 "Decompress *data*, returning uncompressed data as bytes.\n"
119 "\n"
120 "If *max_length* is nonnegative, returns at most *max_length* bytes of\n"
121 "decompressed data. If this limit is reached and further output can be\n"
122 "produced, *self.needs_input* will be set to ``False``. In this case, the next\n"
123 "call to *decompress()* may provide *data* as b\'\' to obtain more of the output.\n"
124 "\n"
125 "If all of the input data was decompressed and returned (either because this\n"
126 "was less than *max_length* bytes, or because *max_length* was negative),\n"
127 "*self.needs_input* will be set to True.\n"
128 "\n"
129 "Attempting to decompress data after the end of stream is reached raises an\n"
130 "EOFError.  Any data found after the end of the stream is ignored and saved in\n"
131 "the unused_data attribute.");
132 
133 #define _BZ2_BZ2DECOMPRESSOR_DECOMPRESS_METHODDEF    \
134     {"decompress", (PyCFunction)(void(*)(void))_bz2_BZ2Decompressor_decompress, METH_FASTCALL|METH_KEYWORDS, _bz2_BZ2Decompressor_decompress__doc__},
135 
136 static PyObject *
137 _bz2_BZ2Decompressor_decompress_impl(BZ2Decompressor *self, Py_buffer *data,
138                                      Py_ssize_t max_length);
139 
140 static PyObject *
_bz2_BZ2Decompressor_decompress(BZ2Decompressor * self,PyObject * const * args,Py_ssize_t nargs,PyObject * kwnames)141 _bz2_BZ2Decompressor_decompress(BZ2Decompressor *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
142 {
143     PyObject *return_value = NULL;
144     static const char * const _keywords[] = {"data", "max_length", NULL};
145     static _PyArg_Parser _parser = {NULL, _keywords, "decompress", 0};
146     PyObject *argsbuf[2];
147     Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
148     Py_buffer data = {NULL, NULL};
149     Py_ssize_t max_length = -1;
150 
151     args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
152     if (!args) {
153         goto exit;
154     }
155     if (PyObject_GetBuffer(args[0], &data, PyBUF_SIMPLE) != 0) {
156         goto exit;
157     }
158     if (!PyBuffer_IsContiguous(&data, 'C')) {
159         _PyArg_BadArgument("decompress", "argument 'data'", "contiguous buffer", args[0]);
160         goto exit;
161     }
162     if (!noptargs) {
163         goto skip_optional_pos;
164     }
165     if (PyFloat_Check(args[1])) {
166         PyErr_SetString(PyExc_TypeError,
167                         "integer argument expected, got float" );
168         goto exit;
169     }
170     {
171         Py_ssize_t ival = -1;
172         PyObject *iobj = PyNumber_Index(args[1]);
173         if (iobj != NULL) {
174             ival = PyLong_AsSsize_t(iobj);
175             Py_DECREF(iobj);
176         }
177         if (ival == -1 && PyErr_Occurred()) {
178             goto exit;
179         }
180         max_length = ival;
181     }
182 skip_optional_pos:
183     return_value = _bz2_BZ2Decompressor_decompress_impl(self, &data, max_length);
184 
185 exit:
186     /* Cleanup for data */
187     if (data.obj) {
188        PyBuffer_Release(&data);
189     }
190 
191     return return_value;
192 }
193 
194 PyDoc_STRVAR(_bz2_BZ2Decompressor___init____doc__,
195 "BZ2Decompressor()\n"
196 "--\n"
197 "\n"
198 "Create a decompressor object for decompressing data incrementally.\n"
199 "\n"
200 "For one-shot decompression, use the decompress() function instead.");
201 
202 static int
203 _bz2_BZ2Decompressor___init___impl(BZ2Decompressor *self);
204 
205 static int
_bz2_BZ2Decompressor___init__(PyObject * self,PyObject * args,PyObject * kwargs)206 _bz2_BZ2Decompressor___init__(PyObject *self, PyObject *args, PyObject *kwargs)
207 {
208     int return_value = -1;
209 
210     if (Py_IS_TYPE(self, &BZ2Decompressor_Type) &&
211         !_PyArg_NoPositional("BZ2Decompressor", args)) {
212         goto exit;
213     }
214     if (Py_IS_TYPE(self, &BZ2Decompressor_Type) &&
215         !_PyArg_NoKeywords("BZ2Decompressor", kwargs)) {
216         goto exit;
217     }
218     return_value = _bz2_BZ2Decompressor___init___impl((BZ2Decompressor *)self);
219 
220 exit:
221     return return_value;
222 }
223 /*[clinic end generated code: output=3f3f1e788fe28ee1 input=a9049054013a1b77]*/
224