genesis-3d_engine/Engine/foundation/memory/osx/osxmemorypool.h

/****************************************************************************
Copyright (c) 2010, Radon Labs GmbH
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once

#include "core/types.h"

//------------------------------------------------------------------------------
namespace OSX
{
class OSXMemoryPool
{
public:
    /// constructor
    OSXMemoryPool();
    /// destructor
    ~OSXMemoryPool();
    /// compute the actual block size including alignment and management data
    static uint ComputeAlignedBlockSize(uint blockSize);
    /// setup the memory pool
    void Setup(Memory::HeapType heapType, uint blockSize, uint numBlocks);
    /// allocate a block from the pool (NOTE: returns 0 if pool exhausted!)
    void* Alloc();
    /// deallocate a block from the pool
    void Free(void* ptr);
    /// return true if block is owned by this pool
    bool IsPoolBlock(void* ptr) const;
    /// get number of allocated blocks in pool
    uint GetNumBlocks() const;
    /// get block size
    uint GetBlockSize() const;
    /// get aligned block size
    uint GetAlignedBlockSize() const;
    /// get pool size
    uint GetPoolSize() const;
    /// get current allocation count
#if NEBULA3_MEMORY_STATS
    uint GetAllocCount() const;
#endif
};
    
//------------------------------------------------------------------------------
/**
*/
#if NEBULA3_MEMORY_STATS
inline uint
OSXMemoryPool::GetAllocCount() const
{
    n_error("NOT IMPLEMENTED!\n");
    return 0;
}
#endif
    
//------------------------------------------------------------------------------
/**
*/
inline uint
OSXMemoryPool::ComputeAlignedBlockSize(uint blockSize)
{
    n_error("NOT IMPLEMENTED!\n");
    return 0;
}
    
//------------------------------------------------------------------------------
/**
*/
inline uint
OSXMemoryPool::GetNumBlocks() const
{
    n_error("NOT IMPLEMENTED!\n");
    return 0;
}
    
//------------------------------------------------------------------------------
/**
*/
inline uint
OSXMemoryPool::GetBlockSize() const
{
    n_error("NOT IMPLEMENTED!\n");
    return 0;
}
    
//------------------------------------------------------------------------------
/**
*/
inline uint
OSXMemoryPool::GetAlignedBlockSize() const
{
    n_error("NOT IMPLEMENTED!\n");
    return 0;
}
    
//------------------------------------------------------------------------------
/**
*/
inline uint
OSXMemoryPool::GetPoolSize() const
{
    n_error("NOT IMPLEMENTED!\n");
    return 0;
}
    
//------------------------------------------------------------------------------
/**
*/
inline bool
OSXMemoryPool::IsPoolBlock(void* ptr) const
{
    n_error("NOT IMPLEMENTED!\n");
    return false;
}
    
} // namespace OSX
//------------------------------------------------------------------------------