UtlChainPool.h

Go to the documentation of this file.

//
// Copyright (C) 2004-2007 SIPfoundry Inc.
// Licensed by SIPfoundry under the LGPL license.
//
// Copyright (C) 2004-2007 Pingtel Corp.  All rights reserved.
// Licensed to SIPfoundry under a Contributor Agreement.
//
// $$

#ifndef UtlChainPool_h__
#define UtlChainPool_h__

// SYSTEM INCLUDES
// APPLICATION INCLUDES
#include "utl/UtlLink.h"

// DEFINES
// MACROS
// EXTERNAL FUNCTIONS
// EXTERNAL VARIABLES
// CONSTANTS
// FORWARD DECLARATIONS
// STRUCTS
// TYPEDEFS


class UtlChainPool
{
/* //////////////////////////// PUBLIC //////////////////////////////////// */
public:

/* //////////////////////////// PROTECTED ///////////////////////////////// */
protected:
   friend class UtlLink;
   friend class UtlPair;
   friend class UtlInit;

   typedef void allocator(size_t    blocksize, 
      UtlChain* blockList, 
      UtlChain* pool       
      );
   UtlChainPool(allocator* blockAllocator, size_t blockSize);

   UtlChain* get();

   void release(UtlChain* freeChain);


   size_t totalAllocated()
   {
      return mAllocations * (mBlockSize-1); // one per block is overhead
   }

/* //////////////////////////// PRIVATE /////////////////////////////////// */
private:

   ~UtlChainPool();

   OsBSem        mLock; 
   size_t        mBlockSize;
   size_t        mAllocations;
   allocator*    mAllocator;
   UtlChain      mPool;     
   UtlChain      mBlocks;   
};


#endif // UtlChainPool_h__