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