/*************************************************************************/
/*  thread_dummy.h                                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md)    */
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/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/*************************************************************************/

#ifndef THREAD_DUMMY_H
#define THREAD_DUMMY_H

#include "mutex.h"
#include "rw_lock.h"
#include "semaphore.h"
#include "thread.h"

class ThreadDummy : public Thread {

	static Thread *create(ThreadCreateCallback p_callback, void *p_user, const Settings &p_settings = Settings());

public:
	virtual ID get_id() const { return 0; };

	static void make_default();
};

class MutexDummy : public Mutex {

	static Mutex *create(bool p_recursive);

public:
	virtual void lock(){};
	virtual void unlock(){};
	virtual Error try_lock() { return OK; };

	static void make_default();
};

class SemaphoreDummy : public Semaphore {

	static Semaphore *create();

public:
	virtual Error wait() { return OK; };
	virtual Error post() { return OK; };
	virtual int get() const { return 0; }; ///< get semaphore value

	static void make_default();
};

class RWLockDummy : public RWLock {

	static RWLock *create();

public:
	virtual void read_lock() {}
	virtual void read_unlock() {}
	virtual Error read_try_lock() { return OK; }

	virtual void write_lock() {}
	virtual void write_unlock() {}
	virtual Error write_try_lock() { return OK; }

	static void make_default();
};

#endif
