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c6858d1e7f
Add `MS_WINDOWS_DESKTOP`, `MS_WINDOWS_APPS`, `MS_WINDOWS_SYSTEM` and `MS_WINDOWS_GAMES` preprocessor definitions to allow switching off functionality missing from particular API partitions ("partitions" are used in Windows to identify overlapping subsets of APIs).
CPython only officially supports `MS_WINDOWS_DESKTOP` and `MS_WINDOWS_SYSTEM` (APPS is included by normal desktop builds, but APPS without DESKTOP is not covered). Other configurations are a convenience for people building their own runtimes.
`MS_WINDOWS_GAMES` is for the Xbox subset of the Windows API, which is also available on client OS, but is restricted compared to `MS_WINDOWS_DESKTOP`. These restrictions may change over time, as they relate to the build headers rather than the OS support, and so we assume that Xbox builds will use the latest available version of the GDK.
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
#ifndef MULTIPROCESSING_H
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#define MULTIPROCESSING_H
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#define PY_SSIZE_T_CLEAN
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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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