scopeTimer.h

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/*******************************************************************************
** Copyright (c) 2013 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#include <tbb/tick_count.h>
#include <boost/noncopyable.hpp>
#include <vlutil/vlPrint.h>
#include <string>

class DtScopeTimer : boost::noncopyable
{
public:
   DtScopeTimer(const std::string& text, std::ostream& str = DtWarn)
      : myStream(str)
      , myText(text)
      , myStart(tbb::tick_count::now())
   {
   }

   std::string& text()
   {
      return myText;
   }

   ~DtScopeTimer()
   {
      double d = (tbb::tick_count::now() - myStart).seconds();
      myStream << myText << " took " << d << " seconds" << std::endl;
   }

private:
   std::ostream& myStream;
   std::string myText;
   tbb::tick_count myStart;
};