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#  define HAVE_MP_SEMAPHORE
25#else
26#  include <fcntl.h>                 /* O_CREAT and O_EXCL */
27#  if defined(HAVE_SEM_OPEN) && !defined(POSIX_SEMAPHORES_NOT_ENABLED)
28#    define HAVE_MP_SEMAPHORE
29#    include <semaphore.h>
30     typedef sem_t *SEM_HANDLE;
31#  endif
32#endif
33
34/*
35 * Issue 3110 - Solaris does not define SEM_VALUE_MAX
36 */
37#ifndef SEM_VALUE_MAX
38    #if defined(HAVE_SYSCONF) && defined(_SC_SEM_VALUE_MAX)
39        # define SEM_VALUE_MAX sysconf(_SC_SEM_VALUE_MAX)
40    #elif defined(_SEM_VALUE_MAX)
41        # define SEM_VALUE_MAX _SEM_VALUE_MAX
42    #elif defined(_POSIX_SEM_VALUE_MAX)
43        # define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
44    #else
45        # define SEM_VALUE_MAX INT_MAX
46    #endif
47#endif
48
49
50/*
51 * Format codes
52 */
53
54#if SIZEOF_VOID_P == SIZEOF_LONG
55#  define F_POINTER "k"
56#  define T_POINTER T_ULONG
57#elif SIZEOF_VOID_P == SIZEOF_LONG_LONG
58#  define F_POINTER "K"
59#  define T_POINTER T_ULONGLONG
60#else
61#  error "can't find format code for unsigned integer of same size as void*"
62#endif
63
64#ifdef MS_WINDOWS
65#  define F_HANDLE F_POINTER
66#  define T_HANDLE T_POINTER
67#  define F_SEM_HANDLE F_HANDLE
68#  define T_SEM_HANDLE T_HANDLE
69#else
70#  define F_HANDLE "i"
71#  define T_HANDLE T_INT
72#  define F_SEM_HANDLE F_POINTER
73#  define T_SEM_HANDLE T_POINTER
74#endif
75
76/*
77 * Error codes which can be returned by functions called without GIL
78 */
79
80#define MP_SUCCESS (0)
81#define MP_STANDARD_ERROR (-1)
82#define MP_MEMORY_ERROR (-1001)
83#define MP_SOCKET_ERROR (-1002)
84#define MP_EXCEPTION_HAS_BEEN_SET (-1003)
85
86PyObject *_PyMp_SetError(PyObject *Type, int num);
87
88/*
89 * Externs - not all will really exist on all platforms
90 */
91
92extern PyTypeObject _PyMp_SemLockType;
93extern PyObject *_PyMp_sem_unlink(const char *name);
94
95#endif /* MULTIPROCESSING_H */
96