sem.c

MANTIS是由科罗拉多大学开发的传感器网络嵌入式操作系统。 这是mantis的0.9.5版本的源码。

//  This file is part of MANTIS OS, Operating System
//  See http://mantis.cs.colorado.edu/
//
//  Copyright (C) 2003,2004,2005 University of Colorado, Boulder
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the mos license (see file LICENSE)

/**************************************************************************/
/* File:      sem.c                                                       */
/* Author     Brian Shucker & Jeff Rose                                   */
/*   Date: 05/12/04                                                       */
/*                                                                        */
/**************************************************************************/

#include "mos.h"

#include "sem.h"

inline void mos_sem_init(mos_sem_t *s, int8_t value)
{
   sem_init(s,0,value);
}

inline uint8_t mos_sem_try_wait(mos_sem_t *s)
{
   if (sem_trywait(s)) {
   	return SEM_FAIL;
   } else {
   	return SEM_SUCCESS;
   }
}

inline void mos_sem_wait(mos_sem_t *s)
{
   sem_wait(s);
}

inline void mos_sem_post(mos_sem_t *s)
{
   sem_post(s);
}