1#ifndef MULTIPROCESSING_H
2#define MULTIPROCESSING_H
3
4#define PY_SSIZE_T_CLEAN
5
6#include "Python.h"
7#include "structmember.h"
8#include "pythread.h"
9
10/*
11 * Platform includes and definitions
12 */
13
14#ifdef MS_WINDOWS
15# define WIN32_LEAN_AND_MEAN
16# include <windows.h>
17# include <winsock2.h>
18# include <process.h> /* getpid() */
19# ifdef Py_DEBUG
20# include <crtdbg.h>
21# endif
22# define SEM_HANDLE HANDLE
23# define SEM_VALUE_MAX LONG_MAX
24#else
25# include <fcntl.h> /* O_CREAT and O_EXCL */
26# if defined(HAVE_SEM_OPEN) && !defined(POSIX_SEMAPHORES_NOT_ENABLED)
27# include <semaphore.h>
28 typedef sem_t *SEM_HANDLE;
29# endif
30#endif
31
32/*
33 * Issue 3110 - Solaris does not define SEM_VALUE_MAX
34 */
35#ifndef SEM_VALUE_MAX
36 #if defined(HAVE_SYSCONF) && defined(_SC_SEM_VALUE_MAX)
37 # define SEM_VALUE_MAX sysconf(_SC_SEM_VALUE_MAX)
38 #elif defined(_SEM_VALUE_MAX)
39 # define SEM_VALUE_MAX _SEM_VALUE_MAX
40 #elif defined(_POSIX_SEM_VALUE_MAX)
41 # define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
42 #else
43 # define SEM_VALUE_MAX INT_MAX
44 #endif
45#endif
46
47
48/*
49 * Format codes
50 */
51
52#if SIZEOF_VOID_P == SIZEOF_LONG
53# define F_POINTER "k"
54# define T_POINTER T_ULONG
55#elif SIZEOF_VOID_P == SIZEOF_LONG_LONG
56# define F_POINTER "K"
57# define T_POINTER T_ULONGLONG
58#else
59# error "can't find format code for unsigned integer of same size as void*"
60#endif
61
62#ifdef MS_WINDOWS
63# define F_HANDLE F_POINTER
64# define T_HANDLE T_POINTER
65# define F_SEM_HANDLE F_HANDLE
66# define T_SEM_HANDLE T_HANDLE
67#else
68# define F_HANDLE "i"
69# define T_HANDLE T_INT
70# define F_SEM_HANDLE F_POINTER
71# define T_SEM_HANDLE T_POINTER
72#endif
73
74/*
75 * Error codes which can be returned by functions called without GIL
76 */
77
78#define MP_SUCCESS (0)
79#define MP_STANDARD_ERROR (-1)
80#define MP_MEMORY_ERROR (-1001)
81#define MP_SOCKET_ERROR (-1002)
82#define MP_EXCEPTION_HAS_BEEN_SET (-1003)
83
84PyObject *_PyMp_SetError(PyObject *Type, int num);
85
86/*
87 * Externs - not all will really exist on all platforms
88 */
89
90extern PyTypeObject _PyMp_SemLockType;
91extern PyObject *_PyMp_sem_unlink(const char *name);
92
93#endif /* MULTIPROCESSING_H */
94