/* 
 * 
 * Confidential Information of Telekinesys Research Limited (t/a Havok).  Not for disclosure or distribution without Havok's
 * prior written consent.This software contains code, techniques and know-how which is confidential and proprietary to Havok.
 * Level 2 and Level 3 source code contains trade secrets of Havok. Havok Software (C) Copyright 1999-2008 Telekinesys Research Limited t/a Havok. All Rights Reserved. Use of this software is subject to the terms of an end user license agreement.
 * 
 */
#ifndef HK_FIXED_MEMORY_BLOCK_SERVER_H
#define HK_FIXED_MEMORY_BLOCK_SERVER_H

#include <Common/Base/Memory/Memory/FreeList/hkLargeBlockAllocator.h>

class hkFixedMemoryBlockServer:public hkMemoryBlockServer
{
public:
	HK_DECLARE_SYSTEM_ALLOCATOR();

    hkFixedMemoryBlockServer();
    /// implementing hkMemoryBlockServer
    virtual hkBool isSingleBlockServer() { return true; }
    virtual hk_size_t recommendSize(hk_size_t size);
    virtual void* allocate(hk_size_t size,hk_size_t& sizeOut);
    virtual void free(void* data,hk_size_t size);
    virtual hkBool resize(void* data,hk_size_t oldSize,hk_size_t newSize,hk_size_t& sizeOut);
        /// Returns the total amount of memory available from this allocator. In this case that will just be the memory remaining
        /// from the break to the end
    virtual hk_size_t getTotalAvailableMemory();
        /// Get the memory limit
    virtual hk_size_t getMemoryLimit();
        /// Set the memory limit
    virtual hkBool setMemoryLimit(hk_size_t size);

    virtual void* criticalAlloc(hk_size_t size);
    virtual void criticalFree(void* data,hk_size_t size);

		/// Ctor. Give it a block of memory you want it to use. Will automatically align  in ctor - but that means
		/// m_start may not be the start you passed in if it wasn't aligned.
    hkFixedMemoryBlockServer(void* start,hk_size_t size);
        /// Is 16 byte aligned
    char* m_start;

        /// The end address in bytes
    char* m_end;

        /// Where the limit is currently set to
    char* m_limit;
		/// The current break point (the boundary between allocated and unallocated)
    char* m_break;
};

#endif // HK_FIXED_MEMORY_BLOCK_SERVER_H

/*
* Havok SDK - NO SOURCE PC DOWNLOAD, BUILD(#20080529)
*
* Confidential Information of Havok.  (C) Copyright 1999-2008 
* Telekinesys Research Limited t/a Havok. All Rights Reserved. The Havok
* Logo, and the Havok buzzsaw logo are trademarks of Havok.  Title, ownership
* rights, and intellectual property rights in the Havok software remain in
* Havok and/or its suppliers.
*
* Use of this software for evaluation purposes is subject to and indicates 
* acceptance of the End User licence Agreement for this product. A copy of 
* the license is included with this software and is also available at
* www.havok.com/tryhavok
*
*/
