149 lines
5.3 KiB
C++
149 lines
5.3 KiB
C++
/********************************************************************************
|
|
* ReactPhysics3D physics library, http://www.reactphysics3d.com *
|
|
* Copyright (c) 2010-2018 Daniel Chappuis *
|
|
*********************************************************************************
|
|
* *
|
|
* This software is provided 'as-is', without any express or implied warranty. *
|
|
* In no event will the authors be held liable for any damages arising from the *
|
|
* use of this software. *
|
|
* *
|
|
* Permission is granted to anyone to use this software for any purpose, *
|
|
* including commercial applications, and to alter it and redistribute it *
|
|
* freely, subject to the following restrictions: *
|
|
* *
|
|
* 1. The origin of this software must not be misrepresented; you must not claim *
|
|
* that you wrote the original software. If you use this software in a *
|
|
* product, an acknowledgment in the product documentation would be *
|
|
* appreciated but is not required. *
|
|
* *
|
|
* 2. Altered source versions must be plainly marked as such, and must not be *
|
|
* misrepresented as being the original software. *
|
|
* *
|
|
* 3. This notice may not be removed or altered from any source distribution. *
|
|
* *
|
|
********************************************************************************/
|
|
|
|
#ifndef REACTPHYSICS3D_MEMORY_MANAGER_H
|
|
#define REACTPHYSICS3D_MEMORY_MANAGER_H
|
|
|
|
// Libraries
|
|
#include "memory/DefaultAllocator.h"
|
|
#include "memory/PoolAllocator.h"
|
|
#include "memory/SingleFrameAllocator.h"
|
|
|
|
/// Namespace ReactPhysics3D
|
|
namespace reactphysics3d {
|
|
|
|
// Declarations
|
|
class MemoryAllocator;
|
|
|
|
// Class MemoryManager
|
|
/**
|
|
* The memory manager is used to store the different memory allocators that are used
|
|
* by the library.
|
|
*/
|
|
class MemoryManager {
|
|
|
|
private:
|
|
|
|
/// Default malloc/free memory allocator
|
|
static DefaultAllocator mDefaultAllocator;
|
|
|
|
/// Pointer to the base memory allocator to use
|
|
static MemoryAllocator* mBaseAllocator;
|
|
|
|
/// Memory pool allocator
|
|
PoolAllocator mPoolAllocator;
|
|
|
|
/// Single frame stack allocator
|
|
SingleFrameAllocator mSingleFrameAllocator;
|
|
|
|
public:
|
|
|
|
/// Memory allocation types
|
|
enum class AllocationType {
|
|
Base, // Base memory allocator
|
|
Pool, // Memory pool allocator
|
|
Frame, // Single frame memory allocator
|
|
};
|
|
|
|
/// Constructor
|
|
MemoryManager() = default;
|
|
|
|
/// Destructor
|
|
~MemoryManager() = default;
|
|
|
|
/// Allocate memory of a given type
|
|
void* allocate(AllocationType allocationType, size_t size);
|
|
|
|
/// Release previously allocated memory.
|
|
void release(AllocationType allocationType, void* pointer, size_t size);
|
|
|
|
/// Return the pool allocator
|
|
PoolAllocator& getPoolAllocator();
|
|
|
|
/// Return the single frame stack allocator
|
|
SingleFrameAllocator& getSingleFrameAllocator();
|
|
|
|
/// Return the base memory allocator
|
|
static MemoryAllocator& getBaseAllocator();
|
|
|
|
/// Set the base memory allocator
|
|
static void setBaseAllocator(MemoryAllocator* memoryAllocator);
|
|
|
|
/// Reset the single frame allocator
|
|
void resetFrameAllocator();
|
|
};
|
|
|
|
// Allocate memory of a given type
|
|
inline void* MemoryManager::allocate(AllocationType allocationType, size_t size) {
|
|
|
|
switch (allocationType) {
|
|
case AllocationType::Base: return mBaseAllocator->allocate(size);
|
|
case AllocationType::Pool: return mPoolAllocator.allocate(size);
|
|
case AllocationType::Frame: return mSingleFrameAllocator.allocate(size);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// Release previously allocated memory.
|
|
inline void MemoryManager::release(AllocationType allocationType, void* pointer, size_t size) {
|
|
|
|
switch (allocationType) {
|
|
case AllocationType::Base: mBaseAllocator->release(pointer, size); break;
|
|
case AllocationType::Pool: mPoolAllocator.release(pointer, size); break;
|
|
case AllocationType::Frame: mSingleFrameAllocator.release(pointer, size); break;
|
|
}
|
|
}
|
|
|
|
// Return the pool allocator
|
|
inline PoolAllocator& MemoryManager::getPoolAllocator() {
|
|
return mPoolAllocator;
|
|
}
|
|
|
|
// Return the single frame stack allocator
|
|
inline SingleFrameAllocator& MemoryManager::getSingleFrameAllocator() {
|
|
return mSingleFrameAllocator;
|
|
}
|
|
|
|
// Return the base memory allocator
|
|
inline MemoryAllocator& MemoryManager::getBaseAllocator() {
|
|
return *mBaseAllocator;
|
|
}
|
|
|
|
// Set the base memory allocator
|
|
inline void MemoryManager::setBaseAllocator(MemoryAllocator* baseAllocator) {
|
|
mBaseAllocator = baseAllocator;
|
|
}
|
|
|
|
// Reset the single frame allocator
|
|
inline void MemoryManager::resetFrameAllocator() {
|
|
mSingleFrameAllocator.reset();
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|