[95ec05]: semaphore.h  Maximize  Restore  History

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/*
* Module: semaphore.h
*
* Purpose:
* Semaphores aren't actually part of the PThreads standard.
* They are defined by the POSIX Standard:
*
* POSIX 1003.1b-1993 (POSIX.1b)
*
* Pthreads-win32 - POSIX Threads Library for Win32
* Copyright (C) 1998
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA
*/
#if !defined( SEMAPHORE_H )
#define SEMAPHORE_H
#ifdef NEED_ERRNO
#include "need_errno.h"
#else
#include <errno.h>
#endif
#define _POSIX_SEMAPHORES
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
#if defined(_MSC_VER)
typedef unsigned int mode_t;
#endif
#ifdef NEED_SEM
typedef struct {
unsigned int value;
pthread_mutex_t mutex;
HANDLE event;
} sem_t;
#else /* NEED_SEM */
typedef HANDLE sem_t;
#endif /* NEED_SEM */
int sem_init (sem_t * sem,
int pshared,
unsigned int value
);
int sem_destroy (sem_t * sem
);
int sem_trywait (sem_t * sem
);
int sem_wait (sem_t * sem
);
int sem_post (sem_t * sem
);
int sem_open (const char * name,
int oflag,
mode_t mode,
unsigned int value
);
int sem_close (sem_t * sem
);
int sem_unlink (const char * name
);
int sem_getvalue (sem_t * sem,
int * sval
);
#ifdef __cplusplus
} /* End of extern "C" */
#endif /* __cplusplus */
#endif /* !SEMAPHORE_H */

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