Examples of ptolemy.domains.sdf.lib.SampleDelay

ptolemy.domains.sdf.lib.SampleDelay

This actor outputs a set of initial tokens during the initialize() method, and subsequently passes the input tokens to the output. It is used to break dependency cycles in directed loops of SDF models. This actor declares an initial production parameter in its output port that is used by the SDF scheduler to properly schedule the model, and the initial outputs permit the computation to get started. The default value for the initialOutputs parameter causes a single integer token with value zero to be produced in initialize(). @author Steve Neuendorffer, Edward A. Lee @version $Id: SampleDelay.java,v 1.26 2006/10/26 21:44:45 cxh Exp $ @since Ptolemy II 1.0 @Pt.ProposedRating Yellow (eal) @Pt.AcceptedRating Yellow (neuendor)

            protected void _execute() throws Exception {
                _const.output.unlinkAll();
                _rec.input.unlinkAll();


                AddSubtract add = new AddSubtract(_top, "add");
                SampleDelay sampleDelay = new SampleDelay(_top, "sampleDelay");
                sampleDelay.initialOutputs.setExpression("{4, 5}");
                _top.connect(_const.output, add.plus);


                ComponentRelation relation = _top.connect(add.output,
                        sampleDelay.input);

            _debug("Actor " + actorName + " repeats:" + currentActor._repeats);
            _debug(" initial_tokens? "
                    + currentActor._shouldGenerateInitialTokens);


            if (currentActor._actor instanceof SampleDelay) {
                SampleDelay delay = (SampleDelay) currentActor._actor;
                ArrayToken initialTokens = (ArrayToken) delay.initialOutputs
                        .getToken();
                int delayCount = initialTokens.length();


                _debug(" **DELAY** with " + delayCount + " initial tokens");

Examples of ptolemy.domains.sdf.lib.SampleDelay

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