mariadb/include/my_semaphore.h
monty@hundin.mysql.fi 6b02f13cf3 Removed compiler warnings.
Added new operators to be used with gcc 3.0.x
Update of query cache code.
Added semaphores for Windows (not yet in use)
Added pthread_mutex_trylock for windows.
2001-12-10 00:08:24 +02:00

51 lines
1.5 KiB
C

/*
* 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_
#ifndef __WIN__
#include <semaphore.h>
#else
C_MODE_START
typedef HANDLE sem_t;
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,int count);
int sem_getvalue (sem_t * sem, int * sval);
C_MODE_END
#endif /* __WIN__ */
#endif /* !_my_semaphore_h_ */