ptolemy.caltrop.ddi
Class DataflowWithRates

java.lang.Object
  ptolemy.caltrop.ddi.AbstractDDI
      ptolemy.caltrop.ddi.Dataflow
          ptolemy.caltrop.ddi.DataflowWithRates

All Implemented Interfaces:

Executable, Initializable, DDI

Direct Known Subclasses:

DDF, SDF

public class DataflowWithRates
extends Dataflow

A base class that provides support for dataflow models that publish external rate information. This includes SDF (where the rates are constant) and DDF (where the rates are published once an action is selected.

Since:

Ptolemy II 5.2

Version:

$Id: DataflowWithRates.java 57040 2010-01-27 20:52:32Z cxh $

Author:

Christopher Chang, Steve Neuendorffer

Accepted Rating:

Red (cxh)

Proposed Rating:

Red (cxh)

Nested Class Summary

protected static class

DataflowWithRates.ActionRateSignature

Field Summary

private caltrop.interpreter.ExprEvaluator

_eval

Fields inherited from class ptolemy.caltrop.ddi.Dataflow

_actions, _actor, _actorInterpreter, _context, _currentStateSet, _currentTransitions, _env, _inputPorts, _lastFiredAction, _outputPorts, _ptActor

Fields inherited from interface ptolemy.actor.Executable

COMPLETED, NOT_READY, STOP_ITERATING

Constructor Summary

DataflowWithRates(TypedAtomicActor ptActor, caltrop.interpreter.ast.Actor actor, caltrop.interpreter.Context context, caltrop.interpreter.environment.Environment env)
Create an new DataflowWithRates DDI.

Method Summary

protected static boolean	_allEqual(java.lang.Object[] objs)
protected void	_annotatePortsWithRates(java.util.List ports, java.util.Map rateMap, java.lang.String varName) Annotate the given list of TypedIOPorts with rate parameters according to the given map.
protected boolean	_atLeastOneUnguardedAction()
protected boolean	_checkInitializerGuards()
protected DataflowWithRates.ActionRateSignature	_computeActionRates(caltrop.interpreter.ast.Action action)
protected DataflowWithRates.ActionRateSignature[]	_computeActionRates(caltrop.interpreter.ast.Action[] actions)
private int	_computeRepeatExpression(caltrop.interpreter.ast.Expression repeatExpr, caltrop.interpreter.ast.Action action)
protected static boolean	_isBoundByPortVar(java.lang.String name, caltrop.interpreter.ast.Action action)
private static boolean	_isIn(java.lang.String name, caltrop.interpreter.ast.Decl[] decls)
private static boolean	_isIn(java.lang.String name, java.lang.String[] names)
private boolean	_isStaticallyComputable(caltrop.interpreter.ast.Expression expr, caltrop.interpreter.ast.Action action)

Methods inherited from class ptolemy.caltrop.ddi.Dataflow

_selectAction, _selectInitializer, fire, getName, initialize, isLegalActor, postfire, prefire, preinitialize, setupActor

Methods inherited from class ptolemy.caltrop.ddi.AbstractDDI

addInitializable, isFireFunctional, isStrict, iterate, removeInitializable, stop, stopFire, terminate, wrapup

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_eval

private caltrop.interpreter.ExprEvaluator _eval

Constructor Detail

DataflowWithRates

public DataflowWithRates(TypedAtomicActor ptActor,
                         caltrop.interpreter.ast.Actor actor,
                         caltrop.interpreter.Context context,
                         caltrop.interpreter.environment.Environment env)

Create an new DataflowWithRates DDI.

Parameters:

ptActor - The instance of ptolemy.actor.Actor that the plugin will be associated with.

actor - The abstract syntax tree of the CAL source.

context - The context that the plugin will use.

env - The environment that the plugin will use.

Method Detail

_annotatePortsWithRates

protected void _annotatePortsWithRates(java.util.List ports,
                                       java.util.Map rateMap,
                                       java.lang.String varName)

Annotate the given list of TypedIOPorts with rate parameters according to the given map.

_atLeastOneUnguardedAction

protected boolean _atLeastOneUnguardedAction()

_checkInitializerGuards

protected boolean _checkInitializerGuards()

_computeActionRates

protected DataflowWithRates.ActionRateSignature[] _computeActionRates(caltrop.interpreter.ast.Action[] actions)
                                                               throws java.lang.Exception

Throws:

java.lang.Exception

_computeActionRates

protected DataflowWithRates.ActionRateSignature _computeActionRates(caltrop.interpreter.ast.Action action)
                                                             throws java.lang.Exception

Throws:

java.lang.Exception

_computeRepeatExpression

private int _computeRepeatExpression(caltrop.interpreter.ast.Expression repeatExpr,
                                     caltrop.interpreter.ast.Action action)
                              throws java.lang.Exception

Throws:

java.lang.Exception

_isStaticallyComputable

private boolean _isStaticallyComputable(caltrop.interpreter.ast.Expression expr,
                                        caltrop.interpreter.ast.Action action)

_isBoundByPortVar

protected static boolean _isBoundByPortVar(java.lang.String name,
                                           caltrop.interpreter.ast.Action action)

_isIn

private static boolean _isIn(java.lang.String name,
                             java.lang.String[] names)

_isIn

private static boolean _isIn(java.lang.String name,
                             caltrop.interpreter.ast.Decl[] decls)

_allEqual

protected static boolean _allEqual(java.lang.Object[] objs)