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Port lzma_binding plugin to build on python2/python3

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Eli Schwartz 2019-03-13 00:46:49 -04:00
parent 9139fccbf4
commit 1a687a3d57
1 changed files with 39 additions and 7 deletions
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46
src/lzma/lzma_binding.c
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@ -393,6 +393,8 @@ exit:
// }}} // }}}
static char lzma_binding_doc[] = "Bindings to the LZMA (de)compression C code";
static PyMethodDef lzma_binding_methods[] = { static PyMethodDef lzma_binding_methods[] = {
{"decompress2", decompress2, METH_VARARGS, {"decompress2", decompress2, METH_VARARGS,
"Decompress an LZMA2 encoded block, of unknown compressed size (reads till LZMA2 EOS marker)" "Decompress an LZMA2 encoded block, of unknown compressed size (reads till LZMA2 EOS marker)"
@ -417,24 +419,54 @@ static PyMethodDef lzma_binding_methods[] = {
{NULL, NULL, 0, NULL} {NULL, NULL, 0, NULL}
}; };
#if PY_MAJOR_VERSION >= 3
#define INITERROR return NULL
#define INITMODULE PyModule_Create(&lzma_binding_module)
static struct PyModuleDef lzma_binding_module = {
/* m_base */ PyModuleDef_HEAD_INIT,
/* m_name */ "lzma_binding",
/* m_doc */ lzma_binding_doc,
/* m_size */ -1,
/* m_methods */ lzma_binding_methods,
/* m_slots */ 0,
/* m_traverse */ 0,
/* m_clear */ 0,
/* m_free */ 0,
};
CALIBRE_MODINIT_FUNC PyInit_lzma_binding(void) {
#else
#define INITERROR return
#define INITMODULE Py_InitModule3("lzma_binding", lzma_binding_methods, lzma_binding_doc)
CALIBRE_MODINIT_FUNC initlzma_binding(void) {
#endif
CALIBRE_MODINIT_FUNC
initlzma_binding(void) {
PyObject *m = NULL, *preset_map = NULL, *temp = NULL; PyObject *m = NULL, *preset_map = NULL, *temp = NULL;
int i = 0; int i = 0;
init_crc_table(); init_crc_table();
LZMAError = PyErr_NewException("lzma_binding.error", NULL, NULL); LZMAError = PyErr_NewException("lzma_binding.error", NULL, NULL);
if (!LZMAError) return; if (!LZMAError) {
m = Py_InitModule3("lzma_binding", lzma_binding_methods, "Bindings to the LZMA (de)compression C code"); INITERROR;
if (m == NULL) return; }
m = INITMODULE;
if (m == NULL) {
INITERROR;
}
preset_map = PyTuple_New(10); preset_map = PyTuple_New(10);
if (preset_map == NULL) return; if (preset_map == NULL) {
INITERROR;
}
for (i = 0; i < 10; i++) { for (i = 0; i < 10; i++) {
temp = get_lzma2_properties(i); temp = get_lzma2_properties(i);
if (temp == NULL) return; if (temp == NULL) {
INITERROR;
}
PyTuple_SET_ITEM(preset_map, i, temp); PyTuple_SET_ITEM(preset_map, i, temp);
} }
PyModule_AddObject(m, "preset_map", preset_map); PyModule_AddObject(m, "preset_map", preset_map);
Py_INCREF(LZMAError); Py_INCREF(LZMAError);
PyModule_AddObject(m, "error", LZMAError); PyModule_AddObject(m, "error", LZMAError);
#if PY_MAJOR_VERSION >= 3
return m;
#endif
} }