StopWatchPack_stopwatch.hpp

00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
00005 //                  Copyright (2003) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef STPWATCH_H
00030 #define STPWATCH_H
00031 
00032 #include "Moocho_ConfigDefs.hpp"
00033 
00034 namespace StopWatchPack {
00035 
00041 
00042 double seconds(void);
00043 
00046 class stopwatch {
00047 public:
00048 
00050   stopwatch() : running_(false), last_time_(0.0), total_(0.0)
00051   {}
00052 
00054   bool is_running() const {
00055     return running_;
00056   }
00057 
00059   void start() {
00060     if (!running_) {
00061       last_time_ = seconds();
00062       running_ = true;
00063     }
00064   }
00065 
00067   double stop()  {
00068     if (running_) {
00069       total_ += seconds() - last_time_; 
00070       running_ = false;
00071     }
00072     //std::cout << "total = " << total_ << std::endl;
00073     return total_; 
00074   }
00075 
00077   void reset() {
00078     running_ = false;
00079     last_time_ = 0.0;
00080     total_ = 0.0;
00081   }
00082 
00084   double read() {
00085     if (running_) {
00086       double curr_time = seconds();
00087       total_ += curr_time - last_time_;
00088       last_time_ = curr_time;
00089     }
00090     return total_;
00091   }
00092   
00093 private:
00094   bool running_;
00095   double last_time_;
00096   double total_;
00097 };
00098 
00099 //  end namespace StopWatchPack 
00101 
00102 }  // end namespace StopWatchPack 
00103 
00104 #endif // STPWATCH_H

Generated on Tue Oct 20 12:50:39 2009 for MoochoPack: Miscellaneous Utilities for MOOCHO by doxygen 1.4.7