DtInMemoryProfiler.h

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/*********************************************************************************
** Copyright (c) 2015 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************************/


#pragma once

#include <vrvUtil/vrvUtil.h>

#include <string>
#include <fstream>
#include <deque>

class DtTimedSection;

namespace makVrv
{
   class DT_DLL_VRVUTIL DtInMemoryProfiler
   {
   public:
      static std::size_t calculateNumberOfSamples(float estimatedFrequency, float estimatedRunTimeSeconds);

      DtInMemoryProfiler(std::size_t numOfSamples, const std::string& fileName);

      ~DtInMemoryProfiler();

      std::size_t numSamples(void) const;

      void start();

      void stop();

      void reset();

      bool dumped(void) const;

      void dump();

      bool valid() const;
   private:
      std::string myFileName;

      const std::size_t   myNumSamples;
      std::size_t myCurrentSample;
      double* mySamples;

      bool isValid;

      DtTimedSection* myTimer;

      std::ofstream myDumpFile;
      bool myDumped;
   };

   class DT_DLL_VRVUTIL DtInMemoryProfilerHelper
   {
   public:
      DtInMemoryProfilerHelper(std::size_t numOfSamples, const std::string& fileName);

      void addProfile(double fStart, double fEndAt);
      void clearProfiles(void);

      void profilerPre(double elapsedTime);
      void profilerPost();
   private:
      DtInMemoryProfiler myProfiler;

      struct ProfileData
      {
         ProfileData()
            : myStartAt(0), myEndAt(0), myLoggedStart(false), myDumped(false), myID(0) {}
         double myStartAt;
         double myEndAt;
         bool   myLoggedStart;
         bool   myDumped;
         std::size_t   myID;
      };

      typedef std::deque<ProfileData> Profiles;
      Profiles myProfiles;

      bool myIsProfiling;
   };
}