1/*[clinic input]
2preserve
3[clinic start generated code]*/
4
5PyDoc_STRVAR(_bz2_BZ2Compressor_compress__doc__,
6"compress($self, data, /)\n"
7"--\n"
8"\n"
9"Provide data to the compressor object.\n"
10"\n"
11"Returns a chunk of compressed data if possible, or b\'\' otherwise.\n"
12"\n"
13"When you have finished providing data to the compressor, call the\n"
14"flush() method to finish the compression process.");
15
16#define _BZ2_BZ2COMPRESSOR_COMPRESS_METHODDEF    \
17    {"compress", (PyCFunction)_bz2_BZ2Compressor_compress, METH_O, _bz2_BZ2Compressor_compress__doc__},
18
19static PyObject *
20_bz2_BZ2Compressor_compress_impl(BZ2Compressor *self, Py_buffer *data);
21
22static PyObject *
23_bz2_BZ2Compressor_compress(BZ2Compressor *self, PyObject *arg)
24{
25    PyObject *return_value = NULL;
26    Py_buffer data = {NULL, NULL};
27
28    if (PyObject_GetBuffer(arg, &data, PyBUF_SIMPLE) != 0) {
29        goto exit;
30    }
31    if (!PyBuffer_IsContiguous(&data, 'C')) {
32        _PyArg_BadArgument("compress", "argument", "contiguous buffer", arg);
33        goto exit;
34    }
35    return_value = _bz2_BZ2Compressor_compress_impl(self, &data);
36
37exit:
38    /* Cleanup for data */
39    if (data.obj) {
40       PyBuffer_Release(&data);
41    }
42
43    return return_value;
44}
45
46PyDoc_STRVAR(_bz2_BZ2Compressor_flush__doc__,
47"flush($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
59static PyObject *
60_bz2_BZ2Compressor_flush_impl(BZ2Compressor *self);
61
62static PyObject *
63_bz2_BZ2Compressor_flush(BZ2Compressor *self, PyObject *Py_UNUSED(ignored))
64{
65    return _bz2_BZ2Compressor_flush_impl(self);
66}
67
68PyDoc_STRVAR(_bz2_BZ2Decompressor_decompress__doc__,
69"decompress($self, /, data, max_length=-1)\n"
70"--\n"
71"\n"
72"Decompress *data*, returning uncompressed data as bytes.\n"
73"\n"
74"If *max_length* is nonnegative, returns at most *max_length* bytes of\n"
75"decompressed data. If this limit is reached and further output can be\n"
76"produced, *self.needs_input* will be set to ``False``. In this case, the next\n"
77"call to *decompress()* may provide *data* as b\'\' to obtain more of the output.\n"
78"\n"
79"If all of the input data was decompressed and returned (either because this\n"
80"was less than *max_length* bytes, or because *max_length* was negative),\n"
81"*self.needs_input* will be set to True.\n"
82"\n"
83"Attempting to decompress data after the end of stream is reached raises an\n"
84"EOFError.  Any data found after the end of the stream is ignored and saved in\n"
85"the unused_data attribute.");
86
87#define _BZ2_BZ2DECOMPRESSOR_DECOMPRESS_METHODDEF    \
88    {"decompress", _PyCFunction_CAST(_bz2_BZ2Decompressor_decompress), METH_FASTCALL|METH_KEYWORDS, _bz2_BZ2Decompressor_decompress__doc__},
89
90static PyObject *
91_bz2_BZ2Decompressor_decompress_impl(BZ2Decompressor *self, Py_buffer *data,
92                                     Py_ssize_t max_length);
93
94static PyObject *
95_bz2_BZ2Decompressor_decompress(BZ2Decompressor *self, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
96{
97    PyObject *return_value = NULL;
98    static const char * const _keywords[] = {"data", "max_length", NULL};
99    static _PyArg_Parser _parser = {NULL, _keywords, "decompress", 0};
100    PyObject *argsbuf[2];
101    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
102    Py_buffer data = {NULL, NULL};
103    Py_ssize_t max_length = -1;
104
105    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
106    if (!args) {
107        goto exit;
108    }
109    if (PyObject_GetBuffer(args[0], &data, PyBUF_SIMPLE) != 0) {
110        goto exit;
111    }
112    if (!PyBuffer_IsContiguous(&data, 'C')) {
113        _PyArg_BadArgument("decompress", "argument 'data'", "contiguous buffer", args[0]);
114        goto exit;
115    }
116    if (!noptargs) {
117        goto skip_optional_pos;
118    }
119    {
120        Py_ssize_t ival = -1;
121        PyObject *iobj = _PyNumber_Index(args[1]);
122        if (iobj != NULL) {
123            ival = PyLong_AsSsize_t(iobj);
124            Py_DECREF(iobj);
125        }
126        if (ival == -1 && PyErr_Occurred()) {
127            goto exit;
128        }
129        max_length = ival;
130    }
131skip_optional_pos:
132    return_value = _bz2_BZ2Decompressor_decompress_impl(self, &data, max_length);
133
134exit:
135    /* Cleanup for data */
136    if (data.obj) {
137       PyBuffer_Release(&data);
138    }
139
140    return return_value;
141}
142/*[clinic end generated code: output=a1175204a414fe2a input=a9049054013a1b77]*/
143