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timing.cc

/*
 * Copyright 2003 Michael A. Marsh, Cornell University. All rights reserved.
 * This software is released under the modified BSD license.
 * See the file LICENSE in the top-level directory for details.
 */
//
// $Id: timing.cc,v 1.3 2004/05/19 15:56:46 mmarsh Exp $
//
// $Log: timing.cc,v $
// Revision 1.3  2004/05/19 15:56:46  mmarsh
// *** empty log message ***
//
// Revision 1.2  2003/11/04 22:31:47  mmarsh
// *** empty log message ***
//
//

#ifdef TIMING

// Defining TIMING_IMPL will cause timing.h to define all of the structs
// as globals.  By default, timing.h prepends "extern" to each declaration.
#define TIMING_IMPL
#include "timing.h"

#include <iostream>
#include <iomanip>
#include <sys/resource.h>

void
Timer::print( std::ostream& s ) const
{
   Vector::const_iterator itr = m_timings.begin();
   Vector::const_iterator end = m_timings.end();
   for ( ; itr != end ; ++itr )
   {
      s << m_tag << " "
        << itr->first.tv_sec << " "
        << itr->first.tv_usec << " "
        << itr->second.tv_sec << " "
        << itr->second.tv_usec << std::endl;
   }
}

void
Timer::start()
{
   struct rusage ru;
//   struct timeval tv;
//   gettimeofday(&tv,0);
   struct timeval dummy;
   getrusage(RUSAGE_SELF,&ru);
//   m_timings.push_back( Vector::value_type( tv, dummy ) );
   m_timings.push_back( Vector::value_type( ru.ru_utime, dummy ) );
}

void
Timer::stop()
{
   struct rusage ru;
   getrusage(RUSAGE_SELF,&ru);
//   gettimeofday(&(m_timings.back().second), 0);
   m_timings.back().second.tv_sec = ru.ru_utime.tv_sec;
   m_timings.back().second.tv_usec = ru.ru_utime.tv_usec;
}

void
Timer::cancel()
{
   m_timings.pop_back();
}

template Timer::Pair;

#include "vector_macros.h"
INSTANTIATE_VECTOR( Timer::Vector );

#endif /* TIMING */

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