/**
* Set the container and register this as an initializable in the container.
*
* @param container The container
* @exception IllegalActionException If this attribute is not of the expected class for the
* container, or it has no name, or the attribute and container are not in the same workspace,
* or the proposed container would result in recursive containment.
* @exception NameDuplicationException If the container already has an attribute with the name of
* this attribute that is of class SingletonConfigurableAttribute.
*/
@Override
public void setContainer(NamedObj container)
throws IllegalActionException, NameDuplicationException {
NamedObj oldContainer = getContainer();
if (oldContainer instanceof Initializable) {
((Initializable) oldContainer).removeInitializable(this);
}
super.setContainer(container);
if (container instanceof Initializable) {
((Initializable) container).addInitializable(this);
}
}
/**
* React to a change in an attribute. If the attribute is <i>name</i>, then change the name of the
* container to match.
*
* @param attribute The attribute that changed.
* @exception IllegalActionException If the change is not acceptable to this container (not thrown
* in this base class).
*/
public void attributeChanged(Attribute attribute) throws IllegalActionException {
if (attribute == name) {
Nameable container = getContainer();
try {
container.setName(name.getExpression());
} catch (NameDuplicationException e) {
throw new IllegalActionException(
this, e, "Cannot change the name of the container to match.");
}
} else {
super.attributeChanged(attribute);
}
}
/**
* If the attribute is <i>seed</i> then create the base random number generator.
*
* @param attribute The attribute that changed.
* @exception IllegalActionException If the change is not acceptable to this container (not thrown
* in this base class).
*/
public void attributeChanged(Attribute attribute) throws IllegalActionException {
if (attribute == seed) {
long seedValue = ((LongToken) (seed.getToken())).longValue();
if (seedValue != _generatorSeed) {
_needNewGenerator = true;
}
}
if (attribute == probabilityDistribution) {
} else {
super.attributeChanged(attribute);
}
}
/** Update the modification date of this attribute. */
public void updateContent() throws InternalErrorException {
super.updateContent();
_updateDate();
}
/**
* Specify the container. If the container is not the same as the previous container, then start
* monitoring the new container.
*
* @param container The container to attach this attribute to..
* @exception IllegalActionException If this attribute is not of the expected class for the
* container, or it has no name, or the attribute and container are not in the same workspace,
* or the proposed container would result in recursive containment.
* @exception NameDuplicationException If the container already has an attribute with the name of
* this attribute.
* @see #getContainer()
*/
public void setContainer(final NamedObj container)
throws IllegalActionException, NameDuplicationException {
if (_debugging) {
_debug("set container method called");
}
NamedObj previousContainer = getContainer();
if (previousContainer == container) {
return;
}
if ((previousContainer != null) && (previousContainer instanceof CompositeActor)) {
// _piggybackContainer should be non-null, but we check anyway.
if (_piggybackContainer != null) {
_piggybackContainer.removePiggyback(_executable);
}
_executable = null;
String name;
try {
workspace().getWriteAccess();
List<Actor> entities = ((CompositeActor) previousContainer).deepEntityList();
for (Actor entity : entities) {
List<Attribute> paramList = ((Entity) entity).attributeList();
for (Attribute param : paramList) {
name = param.getDisplayName();
if (name.equals("WCET") || name.equals("executionTime")) {
// param.setPersistent(false);
}
}
}
} catch (Exception ex) { // this should later be replaced with a more specific exception
throw new InternalErrorException(ex);
} finally {
workspace().doneTemporaryWriting();
}
if (_debugging) {
_debug("I should remove all the attributes that were added here.");
}
}
super.setContainer(container);
if (container != null && container instanceof CompositeActor) {
if (_executable == null) {
_executable =
new Executable() {
public void initialize() throws IllegalActionException {
if (_random == null || ((BooleanToken) resetOnEachRun.getToken()).booleanValue()) {
_createGenerator();
}
_needNew = true;
}
public boolean postfire() throws IllegalActionException {
if (_debugging) {
_debug("I should now check to see if there are cumulative overruns");
}
_needNew = true;
// here check to see if there were cumulative timing overruns
if (_debugging) {
_debug(
"execution times are: "
+ _totalObservedExecutionTime
+ " period is: "
+ _totalExpectedExecutionTime);
}
if (_totalObservedExecutionTime > _totalExpectedExecutionTime) {
if (_debugging) {
_debug("There was a timing overrun");
}
if (_debugging) {
_debug("There was a timing overrun");
}
handleModelError(
container,
new IllegalActionException(
container,
"total ExecutionTime of ("
+ _totalObservedExecutionTime
+ ") is larger than Period of ("
+ _totalExpectedExecutionTime
+ ") for actor "
+ container.getDisplayName()));
}
_totalObservedExecutionTime = 0; // reset the observed time
ChangeRequest request =
new ChangeRequest(
this,
"SetVariable change request",
true /*Although this not a structural change in my point of view
, we however for some reason need to specify it is, otherwise the GUI won't update.*/) {
protected void _execute() throws IllegalActionException {}
};
// To prevent prompting for saving the model, mark this
// change as non-persistent.
request.setPersistent(false);
requestChange(request);
if (_debugging) {
_debug("Finished checking for overruns");
}
return true;
}
public void wrapup() {
ChangeRequest request =
new ChangeRequest(this, "SetVariable change request", true) {
protected void _execute() throws IllegalActionException {}
};
// To prevent prompting for saving the model, mark this
// change as non-persistent.
request.setPersistent(false);
requestChange(request);
}
public void fire() throws IllegalActionException {
if (!_readyToFire) {
return;
}
if (_debugging) {
_debug("Inside the fire method and the container is " + container);
}
if (_debugging) {
_debug("Fire method called in the quantity manager");
}
if (_needNewGenerator) {
_createGenerator();
}
if (_needNew) {
_generateRandomNumber();
_needNew = false;
}
if (!_readyToFire) {
return;
}
while ((_unitIndex < _schedule.size())) {
// Grab the next minor cycle (unit) schedule to execute.
Schedule unitSchedule = (Schedule) _schedule.get(_unitIndex);
Iterator scheduleIterator = unitSchedule.iterator();
while (scheduleIterator.hasNext()) {
Actor actor = ((Firing) scheduleIterator.next()).getActor();
if (_debugging) {
_debug("actor to be fired in this iteration has name " + actor.getFullName());
}
_myPhysicalTime =
actor.getDirector().getModelTime().getDoubleValue() + _overRunThusFar;
double actorWCET;
Attribute executionTime = ((Entity) actor).getAttribute("executionTime");
Attribute WCET = ((Entity) actor).getAttribute("WCET");
actorWCET = ((DoubleToken) ((Variable) WCET).getToken()).doubleValue();
double t =
_random.nextDouble()
* 2
* actorWCET; // I multiply by actorWCET in an attempt to scale
if (_debugging) {
_debug("simulated execution time is " + t);
}
_totalObservedExecutionTime += t;
if (t > actorWCET) {
_overRunThusFar += (t - actorWCET);
_myPhysicalTime += t; // (_overRunThusFar;
if (_debugging) {
_debug(
"the actor WCET estimate was "
+ actorWCET
+ " and the actual execution time was "
+ t);
_debug(
"there was an error at model time "
+ (actor.getDirector().getModelTime().getDoubleValue() + actorWCET)
+ "physical time is actually "
+ _myPhysicalTime);
}
}
Parameter dummyP = (Parameter) executionTime;
dummyP.setExpression(Double.toString(t));
if (_debugging) {
_debug(
"Done firing actor "
+ actor
+ " now going to check to see if it went over time.");
}
}
scheduleIterator = unitSchedule.iterator();
while (scheduleIterator.hasNext()) {
Actor actor1 = ((Firing) scheduleIterator.next()).getActor();
if (_debugging) {
_debug("Iterating " + ((NamedObj) actor1).getFullName());
}
if (actor1.iterate(1) == STOP_ITERATING) {
// FIXME: How to handle this?
// put the actor on a no-fire hashtable?
System.err.println(
"Warning: Giotto iterate returned "
+ "STOP_ITERATING for actor \""
+ actor1.getFullName()
+ "\"");
}
}
_unitIndex++;
}
if (_unitIndex >= _schedule.size()) {
_unitIndex = 0;
}
}
public boolean isFireFunctional() {
return true;
}
public boolean isStrict() {
return true;
}
public int iterate(int count) {
return Executable.COMPLETED;
}
public boolean prefire() throws IllegalActionException {
return true;
}
public void stop() {}
public void stopFire() {}
public void terminate() {}
public void addInitializable(Initializable initializable) {}
public void preinitialize() throws IllegalActionException {
double wcet = 0;
double _periodValue = 0;
wcet = _getDirectorWCET(container);
_periodValue = _getDirectorPeriod(container);
// Next, construct the schedule.
// FIXME: Note that mutations will not be supported since the
// schedule is constructed only once.
GiottoScheduler scheduler =
(GiottoScheduler)
((GiottoDirector) ((CompositeActor) container).getDirector())
.getScheduler();
_schedule = scheduler.getSchedule();
// _unitTimeIncrement = scheduler._getMinTimeStep(_periodValue);
if (_debugging) {
_debug(
"the WCET time seen by the director is "
+ wcet
+ " and the period is "
+ _periodValue);
}
if (wcet > _periodValue) {
if (_debugging) {
_debug("throw an exception");
}
// this is the static check before execution
throw new IllegalActionException(
container,
"total WCET of ("
+ wcet
+ ") is larger than period ("
+ _periodValue
+ ") for actor "
+ ((CompositeActor) (getContainer())).getDisplayName());
} // end of if
if (_debugging) {
_debug("at the end of preinitialize in the timing quantity manager.");
}
}
public void removeInitializable(Initializable initializable) {}
};
}
_piggybackContainer = (CompositeActor) container;
_piggybackContainer.addPiggyback(_executable);
}
}
