// Copyright (C) 2003 Intel Corporation

//////////////////////////////////////////////////////////////////////////
// Semaphore.h
//
// This file contains the definition of the Semaphore class
//////////////////////////////////////////////////////////////////////////
#ifndef _LAD_SEMAPHORE_H
#define _LAD_SEMAPHORE_H

class OSSemaphore;

class Semaphore {
public:
    Semaphore(int maxval = 1);
 	Semaphore (const Semaphore& rhs);
    ~Semaphore();
    void acquire(); // blocks until value !=0, and decrements the value
    void release(); // increments the value by 1
    bool acquireTry(); // try to acquire the semaphore: return 'true' if succeded
	Semaphore& operator= (const Semaphore& rhs);
private:
    OSSemaphore* _osSemaphore;
};

#endif //_LAD_SEMAPHORE_H