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Teuchos_CTimeMonitor.cpp
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00001 // @HEADER
00002 // ***********************************************************************
00003 //
00004 //                    Teuchos: Common Tools Package
00005 //                 Copyright (2004) 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 Michael A. Heroux (maherou@sandia.gov)
00025 //
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #include "Teuchos_CTimeMonitor.h"
00030 #include "Teuchos_TimeMonitor.hpp"
00031 #include "Teuchos_implicit_cast.hpp"
00032 
00033 namespace {
00034 
00035 typedef Teuchos::Array< Teuchos::RCP<Teuchos::Time> >  TimerArray_t;
00036 TimerArray_t timerArray;
00037 
00038 } // namespace
00039 
00040 
00041 int Teuchos_startTimer( char timerName[], int timerID )
00042 {
00043   using Teuchos::implicit_cast;
00044   if( timerID < 0 ) {
00045     // The timer does not exist so create it!
00046     timerArray.push_back(Teuchos::TimeMonitor::getNewTimer(timerName));
00047     timerArray.back()->start();
00048     return timerArray.size()-1;
00049   }
00050   // Else, the timer already exists so return it
00051   TEST_FOR_EXCEPTION(
00052     timerID >=  implicit_cast<int>(timerArray.size()), std::logic_error,
00053     "Teuchos_startTimer(...): Error, timerID="<<timerID
00054     <<" is >= timerArray.size()="<<timerArray.size()
00055     <<" for timerName=\""<<timerName<<"\"!"
00056     );
00057   Teuchos::RCP<Teuchos::Time> timer = timerArray[timerID];
00058   TEST_FOR_EXCEPTION(
00059     timer->isRunning(), std::logic_error,
00060     "Teuchos_startTimer(...): Error, timerID="<<timerID
00061     <<", timerName=\""<<timerName<<"\" is already running!"
00062     );
00063   timer->start();
00064   return timerID;
00065 }
00066 
00067 
00068 void Teuchos_stopTimer( int timerID )
00069 {
00070   using Teuchos::implicit_cast;
00071   TEST_FOR_EXCEPTION(
00072     timerID < 0 || timerID >= implicit_cast<int>(timerArray.size()),
00073     std::logic_error,
00074     "Teuchos_stopTimer(...): Error, timerID="<<timerID<<" is invalid!"
00075     );
00076   Teuchos::RCP<Teuchos::Time> timer = timerArray[timerID];
00077   timer->stop();
00078   // Increment the number of times the timer has been used (start to stop).
00079   timer->incrementNumCalls();
00080 }
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