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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
*/
/* This is hacked by Monty to be included in mysys library */
#ifndef _my_semaphore_h_
#define _my_semaphore_h_
C_MODE_START
#ifdef HAVE_SEMAPHORE_H
#include <semaphore.h>
#else
#ifdef __WIN__
typedef HANDLE sem_t;
#else
typedef struct {
pthread_mutex_t mutex;
pthread_cond_t cond;
uint count;
} sem_t;
#endif
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_post_multiple(sem_t * sem, unsigned int count);
int sem_getvalue(sem_t * sem, unsigned int * sval);
#endif
C_MODE_END
#endif /* !_my_semaphore_h_ */
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