/*************************************************************************/
/*  memory_pool_dynamic.h                                                */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/*************************************************************************/
#ifndef MEMORY_POOL_DYNAMIC_H
#define MEMORY_POOL_DYNAMIC_H

#include "typedefs.h"


class MemoryPoolDynamic {

	static MemoryPoolDynamic* singleton;
protected:
friend class Memory;
friend class MID;

	enum {

		INVALID_ID=0xFFFFFFFF
	};

	static MemoryPoolDynamic* get_singleton();

	typedef uint64_t ID;


	virtual ID alloc(size_t p_amount,const char* p_description)=0;
	virtual void free(ID p_id)=0;
	virtual Error realloc(ID p_id, size_t p_amount)=0;
	virtual bool is_valid(ID p_id)=0;
	virtual size_t get_size(ID p_id) const=0;
	virtual const char* get_description(ID p_id) const=0;

	virtual Error lock(ID p_id)=0;
	virtual void * get(ID p_ID)=0;
	virtual Error unlock(ID p_id)=0;
	virtual bool is_locked(ID p_id) const=0;

	virtual size_t get_available_mem() const=0;
	virtual size_t get_total_usage() const=0;

	MemoryPoolDynamic();
public:
	virtual ~MemoryPoolDynamic();

};


#endif