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diff --git a/gcsdk/steamextra/tier1/tsmultimempool.h b/gcsdk/steamextra/tier1/tsmultimempool.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// The copyright to the contents herein is the property of Valve, L.L.C.
+// The contents may be used and/or copied only with the written permission of
+// Valve, L.L.C., or in accordance with the terms and conditions stipulated in
+// the agreement/contract under which the contents have been supplied.
+//
+// Purpose: 
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================
+
+#ifndef TSMULTIMEMPOOL_H
+#define TSMULTIMEMPOOL_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "tier1/utlmap.h"
+#include "tier1/mempool.h"
+#include "tier1/tsmempool.h"
+
+//-----------------------------------------------------------------------------
+// Purpose: A container of a range of mem pool sizes (for network buffers for example) 
+//			and a raw alloc capability (for sizes greater than any contained mem pool).
+//-----------------------------------------------------------------------------
+class CThreadSafeMultiMemoryPool
+{
+public:
+	struct MemPoolConfig_t
+	{
+		uint32 m_cubBlockSize;
+		uint32 m_cubDefaultPoolSize;
+	};
+
+	CThreadSafeMultiMemoryPool( const MemPoolConfig_t *pnBlock, int cnMemPoolConfig, int nGrowMode = UTLMEMORYPOOL_GROW_FAST );
+	~CThreadSafeMultiMemoryPool();
+
+	// Allocate a block of at least nAllocSize bytes
+	void*		Alloc( uint32 cubAlloc );
+	// Free a previously alloc'd block
+	void		Free(void *pvMem);
+	// ReAllocate a previously allocated block to a new size
+	void*		ReAlloc( void *pvMem, uint32 cubAlloc );
+	
+	// Frees everything
+	void		Clear();
+
+	// alloc size for this bit of alloc'd memory
+	int CubAllocSize( void *pvMem );
+	// prints details about our contained memory
+	void PrintStats();
+
+	// total number of alloc'd elements
+	int Count();
+	
+	// Return the total size in MB allocated for this pool
+	int CMBPoolSize() const;
+	// Return the amount of memory in use
+	int CMBPoolSizeInUse() const;
+
+#ifdef DBGFLAG_VALIDATE
+	void Validate( CValidator &validator, const char *pchName );		// Validate our internal structures
+#endif // DBGFLAG_VALIDATE
+
+private:
+	struct MemPoolRecord_t
+	{
+		CThreadSafeMemoryPool *m_pMemPool;
+		uint32 m_nBlockSize;
+	};
+
+	CUtlVector<MemPoolRecord_t> m_VecMemPool; // stores our list of mem pools
+
+	uint32 m_nBlockSizeMax;
+	CUtlVector<MemPoolRecord_t *> m_VecMemPoolLookup; // quick lookup table of mempools
+
+	struct RawAllocation_t
+	{
+		void *m_pvMem;
+		uint32 m_nBlockSize;
+	};
+	CUtlMap<void *,RawAllocation_t,int> m_MapRawAllocation;  // stores our list of raw alloc'd mem
+	CThreadFastMutex m_mutexRawAllocations;
+
+	uint32 m_cubReallocedTotal;
+};
+
+
+#endif // TSMULTIMEMPOOL_H