// -*-c++-*-
#ifndef ADAPTSTATEMANAGER_CC
#define ADAPTSTATEMANAGER_CC
// Copyright (c) 1994-1996 Ohio Board of Regents and the University of
// Cincinnati.  All Rights Reserved.

// BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 
// FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT 
// PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, 
// EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE 
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
// PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE 
// PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME 
// THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 

// IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 
// WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 
// REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR 
// DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL 
// DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM 
// (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED 
// INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF 
// THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER 
// OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 

//
// $Id: AdaptStateManager.cc,v 1.1.1.1 2007/03/15 15:45:05 rmadhoun Exp $
//
//
//---------------------------------------------------------------------------

#include "AdaptStateManager.hh"

AdaptStateManager::AdaptStateManager(BasicTimeWarp *myProcessPtr): InfreqStateManager(myProcessPtr) {
	steadyState = false; 
	nonoptCheckpointInterval = true;
	lastRollbackCount = -1;
	statePeriod = 0;
	userEventsCommitted = 0;
	sumEventTime = 0;
	rollbackTime = 0;
	pausedTime = 0;
}

inline void
AdaptStateManager::startEventTiming() {
	pausedTime = 0;		//Jacky: reset pausedTime to 0
	stopWatch.start();
}

inline bool
AdaptStateManager::stopEventTiming() {

	stopWatch.stop();
	eventTime = stopWatch.elapsed() - pausedTime;	//total elapsed time - pausedTime

#ifdef DEBUGTIMINGS
	*lpFile << nameOfObject << " Execution Time : " << stopWatch.elapsed()
		<< "\n" << nameOfObject << " paused Time: " << pausedTime
		<< "\n" << nameOfObject << " Event Time: " << eventTime << "\n";
#endif

	return ( executionTiming(eventTime) ); 
}


inline void AdaptStateManager::pauseEventTiming() {
	messageStopWatch.start();
}


inline void AdaptStateManager::resumeEventTiming() {
	messageStopWatch.stop();
	pausedTime = messageStopWatch.elapsed();
}


inline void AdaptStateManager::startRollbackTiming() {
	rollbackStopWatch.start();
}


inline void AdaptStateManager::finishRollbackTiming() {

	rollbackStopWatch.stop();
	rollbackTime += rollbackStopWatch.elapsed();

#ifdef DEBUGTIMINGS
	*lpFile << nameOfObject << " Rollback Time : " << rollbackTime << "\n";
#endif
}


inline double AdaptStateManager::getEventExecutionTime() {
	return(EventExecutionTimeWeighted.getAvg());
}


inline double AdaptStateManager::getStateSavingTime() {
	return(StateSaveTimeWeighted.getAvg());
}


inline double AdaptStateManager::getCoastForwardTime() {
	return(CoastForwardTimeWeighted.getAvg());
}



inline void AdaptStateManager::startStateTiming() {
	stopWatch.start();
}


inline void AdaptStateManager::stopStateTiming() { 

	stopWatch.stop();

	if (timeAtLastCall != current->lVT) {	 //Jacky: there is a time change!

#ifdef DEBUGTIMINGS
		*lpFile << nameOfObject << " State Saving Time : " << stopWatch.elapsed() << "\n";
#endif

		StateSaveTimeWeighted.update ( stopWatch.elapsed() );

	} //end time change
}


inline bool AdaptStateManager::executionTiming(double execTime) { 

	if (timeAtLastCall == current->lVT) {	//Jacky: No time change!

#ifdef DEBUGTIMINGS
		*lpFile << nameOfObject << " Execution Time : " << execTime << "\n";
#endif

		sumEventTime += execTime;

	} else {				//Jacky: there is a time change!

		// NOTE: This is the execution time for the PREVIOUS RUN. We sum the 
		// values until we move to the next LVT value and then save the sum.

#ifdef DEBUGTIMINGS
		*lpFile << nameOfObject << " Execution Time update: " << sumEventTime << "\n";
#endif

		EventExecutionTimeWeighted.update( sumEventTime);

		// add the time required for any rollbacks to the time to execute this event.
		sumEventTime = execTime + rollbackTime;
		rollbackTime = 0;
	}

	return((bool)!steadyState);
}

void AdaptStateManager::saveState() {
	// This procedure is duplicated to allow the timing code to be turned off
	// It should be similar to InfreqStateManager::saveState code otherwise.

	if (timeAtLastCall != current->lVT) { //Jacky: there is a time change!

		if (periodCounter == 0) {

			if (steadyState == false) {

				// We have not saved a state for this time and we have not
				// executed a message at this time, so we have just executed the
				// first message at this time.
				// (Only save the first state at this time)
				startStateTiming();

				// state will be clean;
				current->dirty = false;
				StateManager::saveState();
				periodCounter = statePeriod; //Jacky: recount down periodCounter from statePeriod
			
				stopStateTiming();

			} else {
				//Jacky: if steadyState = true, don't measure timing for saving state!

				// state will be clean;
				current->dirty = false;
				StateManager::saveState();
				periodCounter = statePeriod;

			} //end steadyState == false

		} else { //periodCounter != 0

			periodCounter--;
			// If this function is called then the last state will be dirty unless this state is saved.
			(stateQ.back() )->dirty = true;

		} // end periodCounter == 0

		timeAtLastCall = current->lVT;  //update timeAtLastCall to the current time

	} else {  //Jacky: No time change!

		// If this function is called then the last state will be dirty unless this state is saved.
		(stateQ.back() )->dirty = true;

	} //end time change

}
#endif