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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* Module: semaphore.h
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*
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* Purpose:
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* Semaphores aren't actually part of the PThreads standard.
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* They are defined by the POSIX Standard:
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*
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* POSIX 1003.1b-1993 (POSIX.1b)
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*
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright (C) 1998
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA
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*/
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/* This is hacked by Monty to be included in mysys library */
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#ifndef _my_semaphore_h_
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#define _my_semaphore_h_
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C_MODE_START
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#ifdef HAVE_SEMAPHORE_H
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#include <semaphore.h>
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#elif defined(__bsdi__)
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#ifdef __WIN__
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typedef HANDLE sem_t;
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#else
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typedef struct {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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uint count;
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} sem_t;
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#endif /* __WIN__ */
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int sem_init(sem_t * sem, int pshared, unsigned int value);
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int sem_destroy(sem_t * sem);
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int sem_trywait(sem_t * sem);
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int sem_wait(sem_t * sem);
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int sem_post(sem_t * sem);
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int sem_post_multiple(sem_t * sem, unsigned int count);
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int sem_getvalue(sem_t * sem, unsigned int * sval);
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#endif /* !__bsdi__ */
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C_MODE_END
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#endif /* !_my_semaphore_h_ */
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