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my_semaphore.h
Package: mysql-4.1.16-win-src.zip [view]
Upload User: romrleung
Upload Date: 2022-05-23
Package Size: 18897k
Code Size: 2k
Category:
MySQL
Development Platform:
Visual 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_
- #ifdef THREAD
- C_MODE_START
- #ifdef HAVE_SEMAPHORE_H
- #include <semaphore.h>
- #elif !defined(__bsdi__)
- #ifdef __WIN__
- typedef HANDLE sem_t;
- #else
- typedef struct {
- pthread_mutex_t mutex;
- pthread_cond_t cond;
- uint count;
- } sem_t;
- #endif /* __WIN__ */
- 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 /* !__bsdi__ */
- C_MODE_END
- #endif /* THREAD */
- #endif /* !_my_semaphore_h_ */