105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/*
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* C Extension module to test Python internal C APIs (Include/internal).
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*/
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#if !defined(Py_BUILD_CORE_BUILTIN) && !defined(Py_BUILD_CORE_MODULE)
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# error "Py_BUILD_CORE_BUILTIN or Py_BUILD_CORE_MODULE must be defined"
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#endif
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/* Always enable assertions */
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#undef NDEBUG
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#define PY_SSIZE_T_CLEAN
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#include "Python.h"
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#include "pycore_byteswap.h" // _Py_bswap32()
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#include "pycore_initconfig.h" // _Py_GetConfigsAsDict()
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#include "pycore_gc.h" // PyGC_Head
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static PyObject *
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get_configs(PyObject *self, PyObject *Py_UNUSED(args))
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{
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return _Py_GetConfigsAsDict();
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}
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static PyObject*
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get_recursion_depth(PyObject *self, PyObject *Py_UNUSED(args))
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{
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PyThreadState *tstate = PyThreadState_Get();
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/* subtract one to ignore the frame of the get_recursion_depth() call */
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return PyLong_FromLong(tstate->recursion_depth - 1);
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}
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static PyObject*
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test_bswap(PyObject *self, PyObject *Py_UNUSED(args))
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{
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uint16_t u16 = _Py_bswap16(UINT16_C(0x3412));
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if (u16 != UINT16_C(0x1234)) {
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PyErr_Format(PyExc_AssertionError,
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"_Py_bswap16(0x3412) returns %u", u16);
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return NULL;
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}
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uint32_t u32 = _Py_bswap32(UINT32_C(0x78563412));
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if (u32 != UINT32_C(0x12345678)) {
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PyErr_Format(PyExc_AssertionError,
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"_Py_bswap32(0x78563412) returns %lu", u32);
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return NULL;
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}
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uint64_t u64 = _Py_bswap64(UINT64_C(0xEFCDAB9078563412));
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if (u64 != UINT64_C(0x1234567890ABCDEF)) {
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PyErr_Format(PyExc_AssertionError,
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"_Py_bswap64(0xEFCDAB9078563412) returns %llu", u64);
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return NULL;
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}
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Py_RETURN_NONE;
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}
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static PyMethodDef TestMethods[] = {
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{"get_configs", get_configs, METH_NOARGS},
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{"get_recursion_depth", get_recursion_depth, METH_NOARGS},
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{"test_bswap", test_bswap, METH_NOARGS},
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{NULL, NULL} /* sentinel */
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};
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static struct PyModuleDef _testcapimodule = {
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PyModuleDef_HEAD_INIT,
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"_testinternalcapi",
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NULL,
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-1,
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TestMethods,
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NULL,
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NULL,
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NULL,
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NULL
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};
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PyMODINIT_FUNC
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PyInit__testinternalcapi(void)
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{
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PyObject *module = PyModule_Create(&_testcapimodule);
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if (module == NULL) {
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return NULL;
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}
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if (PyModule_AddObject(module, "SIZEOF_PYGC_HEAD",
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PyLong_FromSsize_t(sizeof(PyGC_Head))) < 0) {
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goto error;
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}
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return module;
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error:
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Py_DECREF(module);
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return NULL;
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}
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