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/*
* MemoryManager.h
*
* Copyright (c) 2017 Lukas W <lukaswhl/at/gmail.com>
* Copyright (c) 2014 Vesa Kivimäki
* Copyright (c) 2007-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
*
* This file is part of LMMS - https://lmms.io
*
* This program 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.
*
* This program 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 this program (see COPYING); if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*
*/
#ifndef MEMORY_MANAGER_H
#define MEMORY_MANAGER_H
#include <cstddef>
#include <vector>
#include "export.h"
class EXPORT MemoryManager
{
public:
struct ThreadGuard
{
ThreadGuard();
~ThreadGuard();
};
static void * alloc( size_t size );
static void free( void * ptr );
};
template<typename T>
struct MmAllocator
{
typedef T value_type;
template<class U> struct rebind { typedef MmAllocator<U> other; };
T* allocate( std::size_t n )
{
return reinterpret_cast<T*>( MemoryManager::alloc( sizeof(T) * n ) );
}
void deallocate( T* p, std::size_t )
{
MemoryManager::free( p );
}
typedef std::vector<T, MmAllocator<T> > vector;
};
#define MM_OPERATORS \
public: \
static void * operator new ( size_t size ) \
{ \
return MemoryManager::alloc( size ); \
} \
static void * operator new[] ( size_t size ) \
{ \
return MemoryManager::alloc( size ); \
} \
static void operator delete ( void * ptr ) \
{ \
MemoryManager::free( ptr ); \
} \
static void operator delete[] ( void * ptr ) \
{ \
MemoryManager::free( ptr ); \
}
// for use in cases where overriding new/delete isn't a possibility
#define MM_ALLOC( type, count ) reinterpret_cast<type*>( MemoryManager::alloc( sizeof( type ) * count ) )
// and just for symmetry...
#define MM_FREE( ptr ) MemoryManager::free( ptr )
#endif
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