/* Copyright (C) 2009 Wildfire Games.
 * This file is part of 0 A.D.
 *
 * 0 A.D. is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * 0 A.D. is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef INCLUDED_SHARED_PTR
#define INCLUDED_SHARED_PTR

#include "lib/sysdep/arch/x86_x64/x86_x64.h"
#include "lib/sysdep/rtl.h" // rtl_AllocateAligned

struct DummyDeleter
{
	template<class T>
	void operator()(T*)
	{
	}
};

template<class T>
shared_ptr<T> DummySharedPtr(T* ptr)
{
	return shared_ptr<T>(ptr, DummyDeleter());
}

struct ArrayDeleter
{
	template<class T>
	void operator()(T* p)
	{
		delete[] p;
	}
};

struct FreeDeleter
{
	template<class T>
	void operator()(T* p)
	{
		free(p);
	}
};

// (note: uses CheckedArrayDeleter)
LIB_API shared_ptr<u8> Allocate(size_t size);

struct AlignedDeleter
{
	template<class T>
	void operator()(T* t)
	{
		_mm_free(t);
	}
};

template<class T>
shared_ptr<T> AllocateAligned(size_t size)
{
	return shared_ptr<T>((T*)rtl_AllocateAligned(size, x86_x64_L1CacheLineSize()), AlignedDeleter());
}

#endif	// #ifndef INCLUDED_SHARED_PTR