/******************************************************************************
*
* Copyright (c) 2014 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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*
*
* Mutex.h
*
*****************************************************************************/
// 2016/03/29 Updated.
#pragma once
#include <oz++/CommonObject.h>
#include <oz++/Exception.h>
#include <oz++/CharString.h>
#include <pthread.h>
namespace OZ {
class Mutex :public CommonObject {
private:
pthread_mutex_t mutex;
public:
/**
*/
Mutex(const pthread_mutexattr_t *mutexAttr=NULL)
:mutex((pthread_mutex_t)PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
{
if (mutexAttr) {
int rc = pthread_mutex_init(&mutex,
mutexAttr);
if (rc != 0) {
throw Exception("Mutex#Mutex,1,Failed to pthread_mutex_init");
}
}
}
public:
/**
*/
~Mutex()
{
pthread_mutex_destroy(&mutex); //2016/03/29
}
public:
int lock()
{
return pthread_mutex_lock(&mutex);
}
public:
/**
*/
int unlock()
{
return pthread_mutex_unlock(&mutex);
}
public:
int tryLock()
{
return pthread_mutex_trylock(&mutex);
}
};
}