symbolStore.h

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/*********************************************************************
** Copyright (c) 2004 MaK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: symbolStore.h,v $ $Revision: 1.2 $ $State: Exp $
*********************************************************************/
#ifndef symbolStore_H_
#define symbolStore_H_

#include "tdbutil/tdbUtilDefines.h"
#include <vlutil/vlConfig.h> 
#include <string>
#include <vector>
#include <map>
#include <tbb/concurrent_hash_map.h>
#include <tbb/concurrent_vector.h>
#include <tbb/spin_mutex.h>

//
// The DtSymbolStore class is used to store string representations.
// Ideally we would use some memory allocation techniques to eliminate
// memory fragmentation.
class DT_DLL_tdbutil DtSymbolStore
{
public: 

   DtSymbolStore();
   ~DtSymbolStore();
   
   unsigned int getSymbol(const char* str);
   
   const char* getString(unsigned int sym);

private:
   
   typedef tbb::concurrent_hash_map<std::string, unsigned int> HashMap;
   HashMap myStrings;
   typedef tbb::concurrent_vector<std::string> StringList;
   //std::vector<std::string> myIndex;
   StringList myIndex;
   tbb::spin_mutex myAddSymbolMutex;
};

#endif