cpython/Modules/_uuidmodule.c

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/*
* Python UUID module that wraps libuuid -
* DCE compatible Universally Unique Identifier library.
*/
#define PY_SSIZE_T_CLEAN
#include "Python.h"
#ifdef HAVE_UUID_UUID_H
#include <uuid/uuid.h>
#elif defined(HAVE_UUID_H)
#include <uuid.h>
#endif
static PyObject *
py_uuid_generate_time_safe(PyObject *Py_UNUSED(context),
PyObject *Py_UNUSED(ignored))
{
uuid_t uuid;
#ifdef HAVE_UUID_GENERATE_TIME_SAFE
int res;
res = uuid_generate_time_safe(uuid);
return Py_BuildValue("y#i", (const char *) uuid, sizeof(uuid), res);
#elif defined(HAVE_UUID_CREATE)
uint32_t status;
uuid_create(&uuid, &status);
# if defined(HAVE_UUID_ENC_BE)
unsigned char buf[sizeof(uuid)];
uuid_enc_be(buf, &uuid);
return Py_BuildValue("y#i", buf, sizeof(uuid), (int) status);
# else
return Py_BuildValue("y#i", (const char *) &uuid, sizeof(uuid), (int) status);
# endif
#else
uuid_generate_time(uuid);
return Py_BuildValue("y#O", (const char *) uuid, sizeof(uuid), Py_None);
#endif
}
static int
uuid_exec(PyObject *module) {
assert(sizeof(uuid_t) == 16);
#ifdef HAVE_UUID_GENERATE_TIME_SAFE
int has_uuid_generate_time_safe = 1;
#else
int has_uuid_generate_time_safe = 0;
#endif
if (PyModule_AddIntConstant(module, "has_uuid_generate_time_safe",
has_uuid_generate_time_safe) < 0) {
return -1;
}
return 0;
}
static PyMethodDef uuid_methods[] = {
{"generate_time_safe", py_uuid_generate_time_safe, METH_NOARGS, NULL},
{NULL, NULL, 0, NULL} /* sentinel */
};
static PyModuleDef_Slot uuid_slots[] = {
{Py_mod_exec, uuid_exec},
{0, NULL}
};
static struct PyModuleDef uuidmodule = {
PyModuleDef_HEAD_INIT,
.m_name = "_uuid",
.m_size = 0,
.m_methods = uuid_methods,
.m_slots = uuid_slots,
};
PyMODINIT_FUNC
PyInit__uuid(void)
{
return PyModuleDef_Init(&uuidmodule);
}