Teuchos_Time.hpp

Go to the documentation of this file.

// @HEADER
// ***********************************************************************
//
//                    Teuchos: Common Tools Package
//                 Copyright (2004) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
 
// Kris
// 07.08.03 -- Move into Teuchos package/namespace
 
#ifndef _TEUCHOS_TIME_HPP_
#define _TEUCHOS_TIME_HPP_
 
#include "Teuchos_ConfigDefs.hpp"
 
#include <ctime>
#ifdef HAVE_MPI
#include <mpi.h>
#else
#if ICL || defined(_WIN32)
#include <time.h>
#else
#include <sys/time.h>
#ifndef MINGW
#include <sys/resource.h>
#endif
#endif
#endif
 
 
namespace Teuchos {
 
 
class TEUCHOSCORE_LIB_DLL_EXPORT Time {
public:
  Time (const std::string& name, bool start = false);
 
  static double wallTime ();
 
  void start (bool reset = false);
 
  double stop ();
 
  void disable ();
 
  void enable ();
 
  bool isEnabled () const {
    return enabled_;
  }
 
  double totalElapsedTime (bool readCurrentTime = false) const;
 
  void reset ();
 
  bool isRunning() const {
    return isRunning_;
  }
 
  const std::string& name() const {
    return name_;
  }
 
  void incrementNumCalls();
 
  int numCalls() const {return numCalls_;}
 
private:
  double startTime_;
  double totalTime_;
  bool isRunning_;
  bool enabled_;
  std::string name_;
  int numCalls_;
#ifdef HAVE_TEUCHOS_TIME_MASSIF_SNAPSHOTS
  // We don't want to rely on incrementNumCalls being called,
  // because this does not seem to always happen in the same order.
  // Sometimes after start() is called, sometimes after stop().
  int numCallsMassifSnapshots_;
#endif
};
 
 
} // namespace Teuchos
 
 
#endif // TEUCHOS_TIME_HPP_