https://github.com/python/cpython
Tip revision: fa7a6f23036537567592647d15f043722c7144ad authored by Pablo Galindo on 04 December 2023, 17:54:29 UTC
Python 3.11.7
Python 3.11.7
Tip revision: fa7a6f2
multiprocessing.h
#ifndef MULTIPROCESSING_H
#define MULTIPROCESSING_H
#define PY_SSIZE_T_CLEAN
#include "Python.h"
#include "structmember.h"
#include "pythread.h"
/*
* Platform includes and definitions
*/
#ifdef MS_WINDOWS
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <winsock2.h>
# include <process.h> /* getpid() */
# ifdef Py_DEBUG
# include <crtdbg.h>
# endif
# define SEM_HANDLE HANDLE
# define SEM_VALUE_MAX LONG_MAX
# define HAVE_MP_SEMAPHORE
#else
# include <fcntl.h> /* O_CREAT and O_EXCL */
# if defined(HAVE_SEM_OPEN) && !defined(POSIX_SEMAPHORES_NOT_ENABLED)
# define HAVE_MP_SEMAPHORE
# include <semaphore.h>
typedef sem_t *SEM_HANDLE;
# endif
#endif
/*
* Issue 3110 - Solaris does not define SEM_VALUE_MAX
*/
#ifndef SEM_VALUE_MAX
#if defined(HAVE_SYSCONF) && defined(_SC_SEM_VALUE_MAX)
# define SEM_VALUE_MAX sysconf(_SC_SEM_VALUE_MAX)
#elif defined(_SEM_VALUE_MAX)
# define SEM_VALUE_MAX _SEM_VALUE_MAX
#elif defined(_POSIX_SEM_VALUE_MAX)
# define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
#else
# define SEM_VALUE_MAX INT_MAX
#endif
#endif
/*
* Format codes
*/
#if SIZEOF_VOID_P == SIZEOF_LONG
# define F_POINTER "k"
# define T_POINTER T_ULONG
#elif SIZEOF_VOID_P == SIZEOF_LONG_LONG
# define F_POINTER "K"
# define T_POINTER T_ULONGLONG
#else
# error "can't find format code for unsigned integer of same size as void*"
#endif
#ifdef MS_WINDOWS
# define F_HANDLE F_POINTER
# define T_HANDLE T_POINTER
# define F_SEM_HANDLE F_HANDLE
# define T_SEM_HANDLE T_HANDLE
#else
# define F_HANDLE "i"
# define T_HANDLE T_INT
# define F_SEM_HANDLE F_POINTER
# define T_SEM_HANDLE T_POINTER
#endif
/*
* Error codes which can be returned by functions called without GIL
*/
#define MP_SUCCESS (0)
#define MP_STANDARD_ERROR (-1)
#define MP_MEMORY_ERROR (-1001)
#define MP_SOCKET_ERROR (-1002)
#define MP_EXCEPTION_HAS_BEEN_SET (-1003)
PyObject *_PyMp_SetError(PyObject *Type, int num);
/*
* Externs - not all will really exist on all platforms
*/
extern PyTypeObject _PyMp_SemLockType;
extern PyObject *_PyMp_sem_unlink(const char *name);
#endif /* MULTIPROCESSING_H */