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/*****************************************************************************
**
** Name: CondVar.h
**
** Description: Encapsulate a condition variable for thread synchronization.
**
** Copyright (c) 2012, Broadcom Corp., All Rights Reserved.
** Proprietary and confidential.
**
*****************************************************************************/
#pragma once
#include <pthread.h>
#include "Mutex.h"
class CondVar
{
public:
/*******************************************************************************
**
** Function: CondVar
**
** Description: Initialize member variables.
**
** Returns: None.
**
*******************************************************************************/
CondVar ();
/*******************************************************************************
**
** Function: ~CondVar
**
** Description: Cleanup all resources.
**
** Returns: None.
**
*******************************************************************************/
~CondVar ();
/*******************************************************************************
**
** Function: wait
**
** Description: Block the caller and wait for a condition.
**
** Returns: None.
**
*******************************************************************************/
void wait (Mutex& mutex);
/*******************************************************************************
**
** Function: wait
**
** Description: Block the caller and wait for a condition.
** millisec: Timeout in milliseconds.
**
** Returns: True if wait is successful; false if timeout occurs.
**
*******************************************************************************/
bool wait (Mutex& mutex, long millisec);
/*******************************************************************************
**
** Function: notifyOne
**
** Description: Unblock the waiting thread.
**
** Returns: None.
**
*******************************************************************************/
void notifyOne ();
private:
pthread_cond_t mCondition;
};
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