godot/core/os/thread_safe.h

/*************************************************************************/
/*  thread_safe.h                                                        */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
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/* "Software"), to deal in the Software without restriction, including   */
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/* the following conditions:                                             */
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#ifndef THREAD_SAFE_H
#define THREAD_SAFE_H


#include "os/mutex.h"

class ThreadSafe {

	Mutex *mutex;
public:

	inline void lock() const { if (mutex) mutex->lock(); }
	inline void unlock() const { if (mutex) mutex->unlock(); }

	ThreadSafe();
	~ThreadSafe();
	
};


class ThreadSafeMethod {

	const ThreadSafe *_ts;
public:
	ThreadSafeMethod(const ThreadSafe *p_ts) {
	
		_ts=p_ts;
		_ts->lock();
	}
	
	~ThreadSafeMethod() { _ts->unlock(); }
};


#ifndef NO_THREADS

#define _THREAD_SAFE_CLASS_ ThreadSafe __thread__safe__;
#define _THREAD_SAFE_METHOD_  ThreadSafeMethod __thread_safe_method__(&__thread__safe__);
#define _THREAD_SAFE_LOCK_ __thread__safe__.lock();
#define _THREAD_SAFE_UNLOCK_ __thread__safe__.unlock();

#else

#define _THREAD_SAFE_CLASS_
#define _THREAD_SAFE_METHOD_
#define _THREAD_SAFE_LOCK_
#define _THREAD_SAFE_UNLOCK_

#endif




#endif