/**
* Return a list of source ports connected to this port on the same layer that can send data to
* this port. This includes output ports that are connected on the outside to this port, and input
* ports that are connected on the inside to this port.
*
* @param input TypedIOPort
* @return A list of IOPort objects.
*/
private LinkedList _shallowSourcePortList(TypedIOPort input) {
try {
_workspace.getReadAccess();
Actor container = (Actor) input.getContainer();
Director excDirector = ((Actor) container).getExecutiveDirector();
int depthOfContainer = ((NamedObj) container).depthInHierarchy();
LinkedList result = new LinkedList();
Iterator ports = input.connectedPortList().iterator();
while (ports.hasNext()) {
IOPort port = (IOPort) ports.next();
int depth = port.depthInHierarchy();
if (port.isInput() && (depth <= depthOfContainer)) {
result.addLast(port);
} else if (port.isOutput() && (depth == (depthOfContainer + 1))) {
result.addLast(port);
}
}
return result;
} finally {
_workspace.doneReading();
}
}
/** Refreshes the visual properties of the TreeItem for this part. */
protected void refreshVisuals() {
if (getWidget() instanceof Tree) return;
NamedObj model = getNamedObjectModel();
// Set Image
if (model instanceof Director)
setWidgetImage(DirectorEditPart.IMAGE_DESCRIPTOR_DIRECTOR, model);
else if (model instanceof Parameter)
setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_PARAMETER, model);
else if (model instanceof IOPort) {
IOPort port = (IOPort) model;
if (port.isInput()) setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_INPUTPORT, model);
else setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_OUTPUTPORT, model);
} else if (model instanceof TypedAtomicActor) {
setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_ACTOR, model);
} else if (model instanceof CompositeActor) {
setWidgetImage(PaletteBuilder.getInstance().getIcon(model.getClass()), model);
}
// Set Text
if (model instanceof Parameter) {
Parameter param = (Parameter) model;
String name = param.getName();
String value = param.getExpression();
setWidgetText(name + "=" + (value == null ? "" : value));
} else setWidgetText(model.getName());
}
/**
* Set the container. This overrides the base class to record the director.
*
* @param port The container.
* @exception IllegalActionException If the container is not of an appropriate subclass of IOPort,
* or if the container's director is not an instance of PNDirector.
*/
public void setContainer(IOPort port) throws IllegalActionException {
super.setContainer(port);
if (port == null) {
_director = null;
} else {
Actor actor = (Actor) port.getContainer();
Director director;
// For a composite actor,
// the receiver type of an input port is decided by
// the executive director.
// While the receiver type of an output is decided by the director.
// NOTE: getExecutiveDirector() and getDirector() yield the same
// result for actors that do not contain directors.
if (port.isInput()) {
director = actor.getExecutiveDirector();
} else {
director = actor.getDirector();
}
if (!(director instanceof PNDirector)) {
throw new IllegalActionException(
port,
"Cannot use an instance of PNQueueReceiver "
+ "since the director is not a PNDirector.");
}
_director = (PNDirector) director;
}
}
/**
* Check for the given channel of the given port to see if variables are needed for recording read
* offset and write offset. If the buffer size of a channel divides the readTokens and writeTokens
* given in the argument, then there is no need for the variables. Otherwise the integer offsets
* are replaced with variables and the code to initialize these variables are generated.
*
* @param port The port to be checked.
* @param channelNumber The channel number.
* @param readTokens The number of tokens read.
* @param writeTokens The number of tokens written.
* @return Code that declares the read and write offset variables.
* @exception IllegalActionException If getting the rate or reading parameters throws it.
*/
protected String _createOffsetVariablesIfNeeded(
IOPort port, int channelNumber, int readTokens, int writeTokens)
throws IllegalActionException {
StringBuffer code = new StringBuffer();
CodeGeneratorHelper helper = (CodeGeneratorHelper) _getHelper(port.getContainer());
int bufferSize = helper.getBufferSize(port, channelNumber);
if (bufferSize != 0 && (readTokens % bufferSize != 0 || writeTokens % bufferSize != 0)) {
// Increase the buffer size of that channel to the power of two.
int newBufferSize = _ceilToPowerOfTwo(bufferSize);
helper.setBufferSize(port, channelNumber, newBufferSize);
int width;
if (port.isInput()) {
width = port.getWidth();
} else {
width = port.getWidthInside();
}
// We check again if the new bufferSize divides readTokens or
// writeTokens. If yes, we could avoid using variable to represent
// offset.
if (readTokens % newBufferSize != 0) {
// Declare the read offset variable.
StringBuffer channelReadOffset = new StringBuffer();
channelReadOffset.append(CodeGeneratorHelper.generateName(port));
if (width > 1) {
channelReadOffset.append("_" + channelNumber);
}
channelReadOffset.append("_readoffset");
String channelReadOffsetVariable = channelReadOffset.toString();
// code.append("static int " + channelReadOffsetVariable + " = "
// + helper.getReadOffset(port, channelNumber) + ";\n");
code.append("static int " + channelReadOffsetVariable + ";\n");
// Now replace the concrete offset with the variable.
helper.setReadOffset(port, channelNumber, channelReadOffsetVariable);
}
if (writeTokens % newBufferSize != 0) {
// Declare the write offset variable.
StringBuffer channelWriteOffset = new StringBuffer();
channelWriteOffset.append(CodeGeneratorHelper.generateName(port));
if (width > 1) {
channelWriteOffset.append("_" + channelNumber);
}
channelWriteOffset.append("_writeoffset");
String channelWriteOffsetVariable = channelWriteOffset.toString();
code.append("static int " + channelWriteOffsetVariable + ";\n");
// Now replace the concrete offset with the variable.
helper.setWriteOffset(port, channelNumber, channelWriteOffsetVariable);
}
}
return code.toString();
}
/**
* Return true if the receiver containing this boundary detector is contained on the outside of a
* boundary port. A boundary port is an opaque port that is contained by a composite actor. If the
* containing receiver is contained on the outside of a boundary port then return true; otherwise
* return false. This method is not synchronized so the caller should be.
*
* @return True if the containing receiver is contained on the outside of a boundary port; return
* false otherwise.
*/
public boolean isOutsideBoundary() {
if (_outsideBoundaryCacheIsOn) {
return _isInsideBoundaryValue;
} else {
IOPort innerPort = _receiver.getContainer();
if (innerPort == null) {
_outsideBoundaryCacheIsOn = false;
_isOutsideBoundaryValue = false;
return _isOutsideBoundaryValue;
}
ComponentEntity innerEntity = (ComponentEntity) innerPort.getContainer();
if ((innerEntity != null) && !innerEntity.isAtomic() && innerPort.isOpaque()) {
// The containing receiver is contained by the port
// of a composite actor.
if (innerPort.isOutput() && !innerPort.isInput()) {
_isOutsideBoundaryValue = false;
} else if (!innerPort.isOutput() && innerPort.isInput()) {
_isOutsideBoundaryValue = true;
} else if (!innerPort.isOutput() && !innerPort.isInput()) {
_isOutsideBoundaryValue = false;
} else {
// CONCERN: The following only works if the port
// is not both an input and output.
throw new IllegalArgumentException(
"A port that "
+ "is both an input and output can not be "
+ "properly dealt with by "
+ "PNQueueReceiver.isInsideBoundary");
}
_outsideBoundaryCacheIsOn = true;
return _isOutsideBoundaryValue;
}
_outsideBoundaryCacheIsOn = true;
_isOutsideBoundaryValue = false;
return _isOutsideBoundaryValue;
}
}
/**
* Return true if the receiver containing this boundary detector is connected to the inside of an
* input boundary port; return false otherwise. A boundary port is an opaque port that is
* contained by a composite actor. This method is not synchronized so the caller should be.
*
* @return True if the containing receiver is connected to the inside of a boundary port; return
* false otherwise.
* @exception IllegalActionException
* @exception InvalidStateException
*/
public boolean isConnectedToBoundaryInside()
throws InvalidStateException, IllegalActionException {
if (_connectedInsideOfBoundaryCacheIsOn) {
return _isConnectedInsideOfBoundaryValue;
} else {
IOPort contPort = _receiver.getContainer();
if (contPort == null) {
_connectedInsideOfBoundaryCacheIsOn = false;
_isConnectedInsideOfBoundaryValue = false;
return _isConnectedInsideOfBoundaryValue;
}
ComponentEntity contEntity = (ComponentEntity) contPort.getContainer();
IOPort connectedPort = null;
ComponentEntity connectedEntity = null;
Iterator ports = contPort.connectedPortList().iterator();
while (ports.hasNext()) {
connectedPort = (IOPort) ports.next();
connectedEntity = (ComponentEntity) connectedPort.getContainer();
if ((connectedEntity == contEntity.getContainer())
&& connectedPort.isInput()
&& connectedPort.isOpaque()) {
// The port container of this receiver is
// connected to the inside of a boundary port.
// Now determine if this receiver's channel is
// connected to the boundary port.
Receiver[][] receivers = connectedPort.deepGetReceivers();
for (int i = 0; i < receivers.length; i++) {
for (int j = 0; j < receivers[i].length; j++) {
if (_receiver == receivers[i][j]) {
_connectedInsideOfBoundaryCacheIsOn = true;
_isConnectedInsideOfBoundaryValue = true;
return true;
}
}
}
}
}
_connectedInsideOfBoundaryCacheIsOn = true;
_isConnectedInsideOfBoundaryValue = false;
return _isConnectedInsideOfBoundaryValue;
}
}
/**
* Return the list of sending (up-stream) ports that are connected to the specified port. This
* treats every port as an opaque port.
*
* @param port The specified port.
* @return The list of sending ports.
*/
protected static List<IOPort> _getSourcePortList(IOPort port) {
List<IOPort> result = new ArrayList<IOPort>();
for (IOPort connectedPort : (List<IOPort>) port.connectedPortList()) {
boolean isInput = connectedPort.isInput();
boolean isCompositeInput =
connectedPort.getContainer() instanceof CompositeEntity
&& isInput
&& port.depthInHierarchy() > connectedPort.depthInHierarchy();
if (!isInput || isCompositeInput) {
result.add(connectedPort);
}
}
return result;
}
/**
* Return the director that created this receiver. If this receiver is an inside receiver of an
* output port of an opaque composite actor, then the director will be the local director of the
* container of its port. Otherwise, it's the executive director of the container of its port.Note
* that the director returned is guaranteed to be non-null. This method is read synchronized on
* the workspace.
*
* @return An instance of DEDirector.
* @exception IllegalActionException If there is no container port, or if the port has no
* container actor, or if the actor has no director, or if the director is not an instance of
* DEDirector.
*/
private DEDirector _getDirector() throws IllegalActionException {
IOPort port = getContainer();
if (port != null) {
if (_directorVersion == port.workspace().getVersion()) {
return _director;
}
// Cache is invalid. Reconstruct it.
try {
port.workspace().getReadAccess();
Actor actor = (Actor) port.getContainer();
if (actor != null) {
Director dir;
if (!port.isInput()
&& (actor instanceof CompositeActor)
&& ((CompositeActor) actor).isOpaque()) {
dir = actor.getDirector();
} else {
dir = actor.getExecutiveDirector();
}
if (dir != null) {
if (dir instanceof DEDirector) {
_director = (DEDirector) dir;
_directorVersion = port.workspace().getVersion();
return _director;
} else {
throw new IllegalActionException(getContainer(), "Does not have a DEDirector.");
}
}
}
} finally {
port.workspace().doneReading();
}
}
throw new IllegalActionException(
getContainer(), "Does not have a IOPort as the container of the receiver.");
}
/**
* Return the buffer size of a given channel (i.e, a given port and a given channel number). The
* default value is 1. If the port is an output port, then the buffer size is obtained from the
* inside receiver. If it is an input port, then it is obtained from the specified port.
*
* @param port The given port.
* @param channelNumber The given channel number.
* @return The buffer size of the given channel.
* @exception IllegalActionException If the channel number is out of range or if the port is
* neither an input nor an output.
*/
public int getBufferSize(IOPort port, int channelNumber) throws IllegalActionException {
Receiver[][] receivers = null;
if (port.isInput()) {
receivers = port.getReceivers();
} else if (port.isOutput()) {
receivers = port.getInsideReceivers();
}
// else {
// throw new IllegalActionException(port,
// "Port is neither an input nor an output.");
// }
// try {
int size = 0;
for (int copy = 0; copy < receivers[channelNumber].length; copy++) {
int copySize = ((SDFReceiver) receivers[channelNumber][copy]).getCapacity();
if (copySize > size) {
size = copySize;
}
// When an output port of a composite actor is directly
// connected to an input port of the same composite actor,
// calling getCapacity() will return 0. Therefore we use
// the rate to determine the buffer size.
if (port.isOutput()) {
copySize = DFUtilities.getRate(port);
if (copySize > size) {
size = copySize;
}
}
}
return size;
// }
// catch (ArrayIndexOutOfBoundsException ex) {
// throw new IllegalActionException(port, "Channel out of bounds: "
// + channelNumber);
// }
}
/**
* Generate code for the firing of refinements.
*
* @param code The string buffer that the generated code is appended to.
* @exception IllegalActionException If the helper associated with an actor throws it while
* generating fire code for the actor.
*/
protected void _generateRefinementCode(StringBuffer code) throws IllegalActionException {
ptolemy.domains.fsm.kernel.FSMDirector director =
(ptolemy.domains.fsm.kernel.FSMDirector) getComponent();
ptolemy.domains.fsm.kernel.FSMActor controller = director.getController();
FSMActor controllerHelper = (FSMActor) _getHelper(controller);
int depth = 1;
code.append(_getIndentPrefix(depth));
code.append(
"switch (" + controllerHelper.processCode("$actorSymbol(currentState)") + ") {" + _eol);
Iterator states = controller.entityList().iterator();
int stateCount = 0;
depth++;
while (states.hasNext()) {
code.append(_getIndentPrefix(depth));
code.append("case " + stateCount + ":" + _eol);
stateCount++;
depth++;
State state = (State) states.next();
Actor[] actors = state.getRefinement();
if (actors != null) {
for (int i = 0; i < actors.length; i++) {
CodeGeneratorHelper actorHelper = (CodeGeneratorHelper) _getHelper((NamedObj) actors[i]);
// fire the actor
// code.append(actorHelper.generateFireCode());
code.append(_getActorName(actors[i]) + "();" + _eol);
// update buffer offset after firing each actor once
int[][] rates = actorHelper.getRates();
Iterator ports = ((Entity) actors[i]).portList().iterator();
int portNumber = 0;
while (ports.hasNext()) {
IOPort port = (IOPort) ports.next();
if (rates != null) {
code.append(
"switch ("
+ actorHelper.processCode("$actorSymbol(" + "currentConfiguration)")
+ ") {"
+ _eol);
for (int k = 0; k < rates.length; k++) {
code.append("case " + k + ":" + _eol);
if (rates[k] != null) {
int rate = rates[k][portNumber];
if (port.isInput()) {
_updatePortOffset(port, code, rate);
} else {
_updateConnectedPortsOffset(port, code, rate);
}
code.append("break;" + _eol);
}
}
code.append("}" + _eol);
} else {
int rate = DFUtilities.getRate(port);
if (port.isInput()) {
_updatePortOffset(port, code, rate);
} else {
_updateConnectedPortsOffset(port, code, rate);
}
}
portNumber++;
}
}
}
code.append(_getIndentPrefix(depth));
code.append("break;" + _eol); // end of case statement
depth--;
}
depth--;
code.append(_getIndentPrefix(depth));
code.append("}" + _eol); // end of switch statement
}
/**
* Return the parameterized scheduling sequence. An exception will be thrown if the graph is not
* schedulable.
*
* @return A schedule of the deeply contained opaque entities in the firing order.
* @exception NotSchedulableException If a parameterized schedule cannot be derived for the model.
* @exception IllegalActionException If the rate parameters of the model are not correct, or the
* computed rates for external ports are not correct.
*/
@SuppressWarnings("unused")
protected Schedule _getSchedule() throws NotSchedulableException, IllegalActionException {
PSDFDirector director = (PSDFDirector) getContainer();
CompositeActor model = (CompositeActor) director.getContainer();
// Get the vectorization factor.
String vectorizationFactorExpression = "1";
String vectorizationName = director.vectorizationFactor.getName(model);
vectorizationFactorExpression = vectorizationName.replaceAll("\\.", "::");
if (vectorizationFactorExpression.indexOf(" ") != -1) {
throw new InternalErrorException(
"The vectorizationFactor "
+ "PSDFDirector parameter must "
+ "not have spaces in its value. The original value "
+ "was \""
+ vectorizationName
+ "\". Try changing the name of "
+ "director.");
}
PSDFGraphReader graphReader = new PSDFGraphReader();
PSDFGraph graph = (PSDFGraph) graphReader.convert(model);
_debug("PSDF graph = \n" + graph.toString());
if (_debugFlag) {
graph.printEdgeRateExpressions();
}
PSDFAPGANStrategy strategy = new PSDFAPGANStrategy(graph);
ptolemy.graph.sched.Schedule graphSchedule = strategy.schedule();
_debug("P-APGAN schedule = \n" + graphSchedule.toString());
SymbolicScheduleElement resultSchedule =
_expandAPGAN(graph, strategy.getClusterManager().getRootNode(), strategy);
resultSchedule.setIterationCount(vectorizationFactorExpression);
_debug("Final schedule = \n" + resultSchedule.toString());
if (_debugging) {
_debug("The buffer size map:\n");
Iterator relations = _bufferSizeMap.keySet().iterator();
while (relations.hasNext()) {
Relation relation = (Relation) relations.next();
_debug(relation.getName() + ": " + _bufferSizeMap.get(relation) + "\n");
}
}
_saveBufferSizes(_bufferSizeMap);
// Crazy hack to infer firing counts for each actor.
try {
_inferFiringCounts(resultSchedule, null);
} catch (NameDuplicationException ex) {
throw new NotSchedulableException(new LinkedList(), ex, "Error recording firing counts");
}
// Crazy hack to Infer port production: FIXME: This should be
// done as part of the APGAN expansion where the rates of
// external ports are unknown The reason is that it will make
// rate information propagate from an actor input port to
// another actors input port that are connected on the inside
// to the same external input port. See
// BaseSDFScheduler.setContainerRates.
Iterator ports = model.portList().iterator();
while (ports.hasNext()) {
IOPort port = (IOPort) ports.next();
if (_debugging && VERBOSE) {
_debug("External Port " + port.getName());
}
if (port.isInput() && port.isOutput()) {
throw new NotSchedulableException(
port,
"External port is both an input and an output, " + "which is not allowed in SDF.");
} else if (port.isInput()) {
List sinks = port.insideSinkPortList();
if (sinks.size() > 0) {
IOPort connectedPort = (IOPort) sinks.get(0);
Entity entity = (Entity) connectedPort.getContainer();
String name = connectedPort.getName(model);
String identifier = name.replaceAll("\\.", "::");
String sinkExpression;
Variable sinkRateVariable =
DFUtilities.getRateVariable(connectedPort, "tokenConsumptionRate");
if (sinkRateVariable == null) {
sinkExpression = "1";
} else {
sinkExpression = identifier + "::" + sinkRateVariable.getName();
}
String expression = sinkExpression + " * " + entity.getName() + "::firingsPerIteration";
DFUtilities.setExpressionIfNotDefined(port, "tokenConsumptionRate", expression);
if (_debugging && VERBOSE) {
_debug("Setting tokenConsumptionRate to " + expression);
}
}
} else if (port.isOutput()) {
List sources = port.insideSourcePortList();
if (sources.size() > 0) {
IOPort connectedPort = (IOPort) sources.get(0);
Entity entity = (Entity) connectedPort.getContainer();
String name = connectedPort.getName(model);
String identifier = name.replaceAll("\\.", "::");
Variable sourceRateVariable =
DFUtilities.getRateVariable(connectedPort, "tokenProductionRate");
String sourceExpression;
if (sourceRateVariable == null) {
sourceExpression = "1";
} else {
sourceExpression = identifier + "::" + sourceRateVariable.getName();
}
String expression = sourceExpression + " * " + entity.getName() + "::firingsPerIteration";
DFUtilities.setExpressionIfNotDefined(port, "tokenProductionRate", expression);
if (_debugging && VERBOSE) {
_debug("Setting tokenProductionRate to " + expression);
}
}
// Infer init production.
// Note that this is a very simple type of inference...
// However, in general, we don't want to try to
// flatten this model...
// Iterator connectedPorts =
// port.insideSourcePortList().iterator();
// IOPort foundOutputPort = null;
// int inferredRate = 0;
// while (connectedPorts.hasNext()) {
// IOPort connectedPort = (IOPort) connectedPorts.next();
// int newRate;
// if (connectedPort.isOutput()) {
// newRate =
// DFUtilities.getTokenInitProduction(connectedPort);
// } else {
// newRate = 0;
// }
// // If we've already set the rate, then check that the
// // rate for any other internal port is correct.
// if (foundOutputPort != null &&
// newRate != inferredRate) {
// throw new NotSchedulableException(
// "External output port " + port
// + " is connected on the inside to ports "
// + "with different initial production: "
// + foundOutputPort + " and "
// + connectedPort);
// }
// foundOutputPort = connectedPort;
// inferredRate = newRate;
// }
// DFUtilities._setIfNotDefined(
// port, "tokenInitProduction", inferredRate);
// if (_debugging && VERBOSE) {
// _debug("Setting tokenInitProduction to "
// + inferredRate);
// }
} else {
throw new NotSchedulableException(
port,
"External port is neither an input and an output, " + "which is not allowed in SDF.");
}
}
// Set the schedule to be valid.
setValid(true);
if (resultSchedule instanceof Schedule) {
return (Schedule) resultSchedule;
} else {
// Must be ScheduleElement.
Schedule schedule = new Schedule();
schedule.add((ScheduleElement) resultSchedule);
return schedule;
}
}
/**
* Check to see if variables are needed to represent read and write offsets for the given port.
*
* @return Code that declares the read and write offset variables.
* @exception IllegalActionException If getting the rate or reading parameters throws it.
*/
protected String _createOffsetVariablesIfNeeded() throws IllegalActionException {
StringBuffer code = new StringBuffer();
CompositeActor container = (CompositeActor) getComponent().getContainer();
boolean inline = ((BooleanToken) _codeGenerator.inline.getToken()).booleanValue();
StringBuffer tempCode = new StringBuffer();
Iterator outputPorts = container.outputPortList().iterator();
while (outputPorts.hasNext()) {
IOPort outputPort = (IOPort) outputPorts.next();
for (int i = 0; i < outputPort.getWidthInside(); i++) {
int readTokens = 0;
int writeTokens = 0;
// If each actor firing is inlined in the code, then read
// and write positions in the buffer must return to the
// previous values after one iteration of the container actor
// in order to avoid using read and write offset variables.
if (inline) {
readTokens = DFUtilities.getRate(outputPort);
writeTokens = readTokens;
// If each actor firing is wrapped in a function, then read
// and write positions in the buffer must return to the
// previous values after one firing of this actor or one
// firing of the actor that produces tokens consumed by the
// inside receiver of this actor in order to avoid using
// read and write offset variables.
} else {
readTokens = DFUtilities.getRate(outputPort);
Iterator sourcePorts = outputPort.insideSourcePortList().iterator();
label1:
while (sourcePorts.hasNext()) {
IOPort sourcePort = (IOPort) sourcePorts.next();
CodeGeneratorHelper helper =
(CodeGeneratorHelper) _getHelper(sourcePort.getContainer());
int width;
if (sourcePort.isInput()) {
width = sourcePort.getWidthInside();
} else {
width = sourcePort.getWidth();
}
for (int j = 0; j < width; j++) {
Iterator channels = helper.getSinkChannels(sourcePort, j).iterator();
while (channels.hasNext()) {
Channel channel = (Channel) channels.next();
if (channel.port == outputPort && channel.channelNumber == i) {
writeTokens = DFUtilities.getRate(sourcePort);
break label1;
}
}
}
}
}
tempCode.append(_createOffsetVariablesIfNeeded(outputPort, i, readTokens, writeTokens));
}
}
if (tempCode.length() > 0) {
code.append("\n" + _codeGenerator.comment(container.getName() + "'s offset variables"));
code.append(tempCode);
}
Iterator actors = container.deepEntityList().iterator();
while (actors.hasNext()) {
StringBuffer tempCode2 = new StringBuffer();
Actor actor = (Actor) actors.next();
Iterator inputPorts = actor.inputPortList().iterator();
while (inputPorts.hasNext()) {
IOPort inputPort = (IOPort) inputPorts.next();
for (int i = 0; i < inputPort.getWidth(); i++) {
int readTokens = 0;
int writeTokens = 0;
// If each actor firing is inlined in the code,
// then read and write positions in the buffer
// must return to the previous values after one
// iteration of the container actor in order to
// avoid using read and write offset variables.
if (inline) {
Variable firings = (Variable) ((NamedObj) actor).getAttribute("firingsPerIteration");
int firingsPerIteration = ((IntToken) firings.getToken()).intValue();
readTokens = DFUtilities.getRate(inputPort) * firingsPerIteration;
writeTokens = readTokens;
// If each actor firing is wrapped in a
// function, then read and write positions in
// the buffer must return to the previous
// values after one firing of this actor or
// one firing of the actor that produces
// tokens consumed by this actor in order to
// avoid using read and write offset
// variables.
} else {
readTokens = DFUtilities.getRate(inputPort);
Iterator sourcePorts = inputPort.sourcePortList().iterator();
label2:
while (sourcePorts.hasNext()) {
IOPort sourcePort = (IOPort) sourcePorts.next();
CodeGeneratorHelper helper =
(CodeGeneratorHelper) _getHelper(sourcePort.getContainer());
int width;
if (sourcePort.isInput()) {
width = sourcePort.getWidthInside();
} else {
width = sourcePort.getWidth();
}
for (int j = 0; j < width; j++) {
Iterator channels = helper.getSinkChannels(sourcePort, j).iterator();
while (channels.hasNext()) {
Channel channel = (Channel) channels.next();
if (channel.port == inputPort && channel.channelNumber == i) {
writeTokens = DFUtilities.getRate(sourcePort);
break label2;
}
}
}
}
}
tempCode2.append(_createOffsetVariablesIfNeeded(inputPort, i, readTokens, writeTokens));
}
}
if (tempCode2.length() > 0) {
code.append("\n" + _codeGenerator.comment(actor.getName() + "'s offset variables"));
code.append(tempCode2);
}
}
return code.toString();
}
/**
* Interconnect all the remote actors in the same manner as the model's topology. In other words,
* the connections defined by the model's topology are created virtually over the distributed
* platform. For each actor, a portReceiverMap is created. A portReceiverMap is a data structure
* representing for a given port the receivers it contains. In case the port is and input port it
* consists of a set of receivers ID's i.e. (inputport, (ID1, ..., IDn). In case of an outputport,
* it contains a map of services to receiver's IDs, i.e. (outputport, ((service1, (ID1, ..., IDi),
* ..., (servicen, (IDj, ..., IDr))). This structure is sent over the network to the corresponding
* service. The types of the port are also set on the remote actor.
*
* @exception IllegalActionException If the remote receivers can't be created.
*/
private void connectActors() throws IllegalActionException {
if (VERBOSE) {
System.out.println("Connecting Actors");
System.out.println(">> Creating Ports Receivers Map: ");
}
for (Iterator keysIterator = actorsThreadsMap.keySet().iterator(); keysIterator.hasNext(); ) {
ComponentEntity actor = (ComponentEntity) keysIterator.next();
HashMap portsReceiversMap = new HashMap();
HashMap portTypes = new HashMap();
Iterator allPorts = actor.portList().iterator();
while (allPorts.hasNext()) {
IOPort currentPort = (IOPort) allPorts.next();
Receiver[][] receivers = new Receiver[0][0];
if (currentPort.isOutput()) {
receivers = currentPort.getRemoteReceivers();
}
if (currentPort.isInput()) {
receivers = currentPort.getReceivers();
}
if (!currentPort.connectedPortList().isEmpty()) {
portTypes.put(currentPort.getName(), ((TypedIOPort) currentPort).getType());
}
if (receivers.length > 0) {
if (VERBOSE) {
System.out.print(
"Port: "
+ currentPort.getFullName()
+ "\n"
+ DistributedUtilities.receiversArrayToString(receivers));
}
if (currentPort.isOutput()) {
portsReceiversMap.put(currentPort.getName(), createServicesReceiversMap(receivers));
}
if (currentPort.isInput()) {
portsReceiversMap.put(
currentPort.getName(), DistributedUtilities.convertReceiversToIntegers(receivers));
}
}
}
ServiceItem server = ((ClientThread) actorsThreadsMap.get(actor)).getService();
DistributedActor distributedActor = (DistributedActor) server.service;
try {
if (VERBOSE) {
System.out.println(
"Setting connections to: "
+ actor.getFullName()
+ " in: "
+ server.serviceID.toString());
System.out.println(
"Setting port Types: " + actor.getFullName() + " in: " + server.serviceID.toString());
}
distributedActor.setConnections(portsReceiversMap);
distributedActor.setPortTypes(portTypes);
} catch (RemoteException e) {
KernelException.stackTraceToString(e);
}
}
}