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