Examples of DDEReceiver

ptolemy.domains.dde.kernel.DDEReceiver
A DDEReceiver stores time stamped tokens according to distributed discrete event semantics. A time stamped token is a token that has a time stamp associated with it. A DDEReceiver stores time stamped tokens by enforcing a blocking read and blocking write style. Time stamped tokens are appended to the queue with one of the two put() methods, both of which block on a write if the queue is full. Time stamped tokens are removed from the queue via the get() method. The get() method will throw a NoTokenException if it is invoked when the hasToken() method returns false.
Each DDEReceiver is managed by a TimeKeeper. A single time keeper is assigned to manage all of the receivers of a given actor by keeping track of the actor's local notion of time. As tokens are consumed (returned by the get() method) in a receiver, the local time of the actor will advance to the value of the consumed token's time stamp. The hasToken() method of a receiver will return true only if the receiver's get() method will result in the minimum advancement of local time with respect to all of the receivers controlled by the TimeKeeper. If the get() method of multiple receivers will result in a minimum but identical local time advancement, then the hasToken() method of the receiver with the highest priority will return true (the others will return false).
If a receiver with a nonnegative receiver time is empty, then the hasToken() method will perform a blocking read. Once, a token is available then hasToken() will return true or false according to the minimum time advancement rules cited in the preceding paragraph. Note that hasToken() blocks while get() does not block.
DDEReceivers process certain events that are hidden from view by ports and actors. In particular, NullTokens have time stamps with a value of PrioritizedTimedQueue.IGNORE. NullTokens allow actors to communicate information on their local time advancement to neighboring actors without the need for an actual data exchange. NullTokens are passed at the receiver level and circumvent the Ptolemy II data typing mechanism.
Time stamps of value PrioritizedTimedQueue.IGNORE are used to initiate execution in feedback cycles. If a receiver has a time stamp with value IGNORE, then it will not be considered when determining which receiver's get() method will result in the minimum local time advancement. Once a single token has been consumed by any other receiver, then the event with time stamp of value IGNORE will be removed. If all receivers have receiver times of IGNORE, then all such events will be removed.
IMPORTANT: This class assumes that valid time stamps have non-negative values. Reserved negative values exist for special purposes: INACTIVE and IGNORE. These values are attributes of PrioritizedTimedQueue. @author John S. Davis II @version $Id: DDEReceiver.java,v 1.114 2006/08/20 19:55:42 cxh Exp $ @since Ptolemy II 0.3 @Pt.ProposedRating Green (davisj) @Pt.AcceptedRating Green (kienhuis) @see ptolemy.domains.dde.kernel.PrioritizedTimedQueue @see ptolemy.domains.dde.kernel.DDEThread

Examples of ptolemy.domains.dde.kernel.DDEReceiver

            _continueIterations = false;
        }


        for (int i = 0; i < inputReceivers.length; i++) {
            for (int j = 0; j < inputReceivers[i].length; j++) {
                DDEReceiver inputReceiver = (DDEReceiver) inputReceivers[i][j];


                if (inputReceiver.hasToken()) {
                    token = inputReceiver.get();


                    Receiver[][] outReceivers = output.getRemoteReceivers();


                    for (int k = 0; k < outReceivers.length; k++) {
                        for (int l = 0; l < outReceivers[k].length; l++) {
                            DDEReceiver outReceiver = (DDEReceiver) outReceivers[k][l];
                            Thread thread = Thread.currentThread();


                            if (thread instanceof DDEThread) {
                                TimeKeeper timeKeeper = ((DDEThread) thread)
                                        .getTimeKeeper();
                                outReceiver.put(token, timeKeeper
                                        .getModelTime());
                            }
                        }
                    }
                }

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Examples of ptolemy.domains.dde.kernel.DDEReceiver

            _continueIterations = false;
        }


        for (int i = 0; i < inputReceivers.length; i++) {
            for (int j = 0; j < inputReceivers[i].length; j++) {
                DDEReceiver inputReceiver = (DDEReceiver) inputReceivers[i][j];


                if (inputReceiver.hasToken()) {
                    token = inputReceiver.get();
                    output1.broadcast(token);
                }
            }
        }
    }

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Examples of ptolemy.domains.dde.kernel.DDEReceiver


        Receiver[][] receivers = input.getReceivers();


        for (int i = 0; i < receivers.length; i++) {
            for (int j = 0; j < receivers[i].length; j++) {
                DDEReceiver receiver = (DDEReceiver) receivers[i][j];


                if (!_continue) {
                    return;
                } else if (receiver.hasToken()) {
                    receiver.get();
                }
            }
        }
    }

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Examples of ptolemy.domains.dde.kernel.DDEReceiver

            _continueIterations = false;
        }


        for (int i = 0; i < inRcvrs.length; i++) {
            for (int j = 0; j < inRcvrs[i].length; j++) {
                DDEReceiver inRcvr = (DDEReceiver) inRcvrs[i][j];


                if (inRcvr.hasToken()) {
                    token = inRcvr.get();
                    output1.broadcast(token);
                }
            }
        }
    }

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Examples of ptolemy.domains.dde.kernel.DDEReceiver

        while (cnt < _numTokens) {
            Receiver[][] receivers = input.getReceivers();


            for (int i = 0; i < receivers.length; i++) {
                for (int j = 0; j < receivers[i].length; j++) {
                    DDEReceiver receiver = (DDEReceiver) receivers[i][j];


                    if (receiver.hasToken()) {
                        _receiverTimes[cnt] = receiver.getReceiverTime()
                                .getDoubleValue();
                        _tokens[cnt] = receiver.get();


                        Thread thread = Thread.currentThread();


                        if (thread instanceof DDEThread) {
                            TimeKeeper timeKeeper = ((DDEThread) thread)

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Examples of ptolemy.domains.dde.kernel.DDEReceiver

        while (cnt < _numTokens) {
            Receiver[][] rcvrs = outputPort.getRemoteReceivers();


            for (int i = 0; i < rcvrs.length; i++) {
                for (int j = 0; j < rcvrs[i].length; j++) {
                    DDEReceiver rcvr = (DDEReceiver) rcvrs[i][j];


                    if (_oneArg) {
                        rcvr.put(_tokens[cnt]);
                    } else {
                        rcvr.put(_tokens[cnt], new Time(getDirector(),
                                _times[cnt]));
                    }
                }
            }

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Examples of ptolemy.domains.dde.kernel.DDEReceiver

            _continueIterations = false;
        }


        for (int i = 0; i < _inRcvrs.length; i++) {
            for (int j = 0; j < _inRcvrs[i].length; j++) {
                DDEReceiver inRcvr = (DDEReceiver) _inRcvrs[i][j];


                if (inRcvr.hasToken()) {
                    token = inRcvr.get();


                    Receiver[][] outRcvrs = output.getRemoteReceivers();


                    for (int k = 0; k < outRcvrs.length; k++) {
                        for (int l = 0; l < outRcvrs[k].length; l++) {
                            DDEReceiver outRcvr = (DDEReceiver) outRcvrs[k][l];
                            Thread thr = Thread.currentThread();


                            if (thr instanceof DDEThread) {
                                TimeKeeper kpr = ((DDEThread) thr)
                                        .getTimeKeeper();
                                outRcvr.put(token, kpr.getModelTime());
                            }
                        }
                    }
                }
            }

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Examples of ptolemy.domains.dde.kernel.DDEReceiver


                Receiver[][] rcvrs = input.getReceivers();


                for (int i = 0; i < rcvrs.length; i++) {
                    for (int j = 0; j < rcvrs[i].length; j++) {
                        DDEReceiver rcvr = (DDEReceiver) rcvrs[i][j];


                        if (rcvr.hasToken()) {
                            // System.out.println("#####");
                            System.out
                                    .println("#####Past DDEGetNToken.rcvr.hasToken()");


                            // System.out.println("#####");
                            _tokens[cnt] = rcvr.get();


                            _afterTimes[cnt] = timeKeeper.getModelTime()
                                    .getDoubleValue();
                            cnt++;
                            j = rcvrs[i].length + 1;

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