source: win32/libpthreads-w32-2.8.0/include/semaphore.h

Last change on this file was 191, checked in by tim, 14 years ago

updated scons build scripts to handle MinGW
added binaries for MinGW build dependencies

File size: 4.2 KB
Line 
1/*
2 * Module: semaphore.h
3 *
4 * Purpose:
5 *      Semaphores aren't actually part of the PThreads standard.
6 *      They are defined by the POSIX Standard:
7 *
8 *              POSIX 1003.1b-1993      (POSIX.1b)
9 *
10 * --------------------------------------------------------------------------
11 *
12 *      Pthreads-win32 - POSIX Threads Library for Win32
13 *      Copyright(C) 1998 John E. Bossom
14 *      Copyright(C) 1999,2005 Pthreads-win32 contributors
15 *
16 *      Contact Email: rpj@callisto.canberra.edu.au
17 *
18 *      The current list of contributors is contained
19 *      in the file CONTRIBUTORS included with the source
20 *      code distribution. The list can also be seen at the
21 *      following World Wide Web location:
22 *      http://sources.redhat.com/pthreads-win32/contributors.html
23 *
24 *      This library is free software; you can redistribute it and/or
25 *      modify it under the terms of the GNU Lesser General Public
26 *      License as published by the Free Software Foundation; either
27 *      version 2 of the License, or (at your option) any later version.
28 *
29 *      This library is distributed in the hope that it will be useful,
30 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
31 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
32 *      Lesser General Public License for more details.
33 *
34 *      You should have received a copy of the GNU Lesser General Public
35 *      License along with this library in the file COPYING.LIB;
36 *      if not, write to the Free Software Foundation, Inc.,
37 *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
38 */
39#if !defined( SEMAPHORE_H )
40#define SEMAPHORE_H
41
42#undef PTW32_LEVEL
43
44#if defined(_POSIX_SOURCE)
45#define PTW32_LEVEL 0
46/* Early POSIX */
47#endif
48
49#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309
50#undef PTW32_LEVEL
51#define PTW32_LEVEL 1
52/* Include 1b, 1c and 1d */
53#endif
54
55#if defined(INCLUDE_NP)
56#undef PTW32_LEVEL
57#define PTW32_LEVEL 2
58/* Include Non-Portable extensions */
59#endif
60
61#define PTW32_LEVEL_MAX 3
62
63#if !defined(PTW32_LEVEL)
64#define PTW32_LEVEL PTW32_LEVEL_MAX
65/* Include everything */
66#endif
67
68#if __GNUC__ && ! defined (__declspec)
69# error Please upgrade your GNU compiler to one that supports __declspec.
70#endif
71
72/*
73 * When building the DLL code, you should define PTW32_BUILD so that
74 * the variables/functions are exported correctly. When using the DLL,
75 * do NOT define PTW32_BUILD, and then the variables/functions will
76 * be imported correctly.
77 */
78#ifndef PTW32_STATIC_LIB
79#  ifdef PTW32_BUILD
80#    define PTW32_DLLPORT __declspec (dllexport)
81#  else
82#    define PTW32_DLLPORT __declspec (dllimport)
83#  endif
84#else
85#  define PTW32_DLLPORT
86#endif
87
88/*
89 * This is a duplicate of what is in the autoconf config.h,
90 * which is only used when building the pthread-win32 libraries.
91 */
92
93#ifndef PTW32_CONFIG_H
94#  if defined(WINCE)
95#    define NEED_ERRNO
96#    define NEED_SEM
97#  endif
98#  if defined(_UWIN) || defined(__MINGW32__)
99#    define HAVE_MODE_T
100#  endif
101#endif
102
103/*
104 *
105 */
106
107#if PTW32_LEVEL >= PTW32_LEVEL_MAX
108#ifdef NEED_ERRNO
109#include "need_errno.h"
110#else
111#include <errno.h>
112#endif
113#endif /* PTW32_LEVEL >= PTW32_LEVEL_MAX */
114
115#define _POSIX_SEMAPHORES
116
117#ifdef __cplusplus
118extern "C"
119{
120#endif                          /* __cplusplus */
121
122#ifndef HAVE_MODE_T
123typedef unsigned int mode_t;
124#endif
125
126
127typedef struct sem_t_ * sem_t;
128
129PTW32_DLLPORT int __cdecl sem_init (sem_t * sem,
130                            int pshared,
131                            unsigned int value);
132
133PTW32_DLLPORT int __cdecl sem_destroy (sem_t * sem);
134
135PTW32_DLLPORT int __cdecl sem_trywait (sem_t * sem);
136
137PTW32_DLLPORT int __cdecl sem_wait (sem_t * sem);
138
139PTW32_DLLPORT int __cdecl sem_timedwait (sem_t * sem,
140                                 const struct timespec * abstime);
141
142PTW32_DLLPORT int __cdecl sem_post (sem_t * sem);
143
144PTW32_DLLPORT int __cdecl sem_post_multiple (sem_t * sem,
145                                     int count);
146
147PTW32_DLLPORT int __cdecl sem_open (const char * name,
148                            int oflag,
149                            mode_t mode,
150                            unsigned int value);
151
152PTW32_DLLPORT int __cdecl sem_close (sem_t * sem);
153
154PTW32_DLLPORT int __cdecl sem_unlink (const char * name);
155
156PTW32_DLLPORT int __cdecl sem_getvalue (sem_t * sem,
157                                int * sval);
158
159#ifdef __cplusplus
160}                               /* End of extern "C" */
161#endif                          /* __cplusplus */
162
163#undef PTW32_LEVEL
164#undef PTW32_LEVEL_MAX
165
166#endif                          /* !SEMAPHORE_H */
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