/*
 * Copyright 2008-2009, Stephan Aßmus <superstippi@gmx.de>
 *  All rights reserved. Distributed under the terms of the MIT License.
 */
#ifndef _SEMAPHORE_LOCKER_H
#define _SEMAPHORE_LOCKER_H


#include "AutoLocker.h"


class SemaphoreLocking {
public:
        inline bool Lock(sem_id* lockable)
        {
                return acquire_sem(*lockable) == B_OK;
        }

        inline void Unlock(sem_id* lockable)
        {
                release_sem(*lockable);
        }
};


class SemaphoreLocker : public AutoLocker<sem_id, SemaphoreLocking> {
public:
        inline SemaphoreLocker(sem_id semaphore, bool alreadyLocked = false,
                        bool lockIfNotLocked = true)
                :
                AutoLocker<sem_id, SemaphoreLocking>(),
                fSem(semaphore)
        {
                SetTo(&fSem, alreadyLocked, lockIfNotLocked);
        }

private:
        sem_id  fSem;
};

#endif // _SEMAPHORE_LOCKER_H