ptolemy.domains.sdf.optimize

Class OptimalScheduleFinder._Port

java.lang.Object

ptolemy.domains.sdf.optimize.OptimalScheduleFinder._Port

Enclosing class:

OptimalScheduleFinder

protected static class OptimalScheduleFinder._Port
extends java.lang.Object

A port of an actor, connected to a channel. A port as a rate determining the number of tokens produced/consumed in a firing of its actor. Negative rates represent input ports, positive rates output ports.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) OptimalScheduleFinder._Channel	_channel The channel associated with the port.
(package private) int	_portIndex The index for this port into the channel's state vector.
(package private) int	_rate the port rate, negative if input port

Constructor Summary

Constructors

Constructor and Description
_Port(int rate, OptimalScheduleFinder._Channel channel) Construct an instance of _Port with rate rate and for channel channel.

Method Summary

Modifier and Type	Method and Description
(package private) void	assignIndex() Assign index to the port into the channel state vector only if it is an input port.
(package private) void	fire(OptimalScheduleFinder._State state) Fire the port by accounting the numbers of tokens.
(package private) boolean	isEnabled(OptimalScheduleFinder._State state) test if the port is enabled, i.e. if the associated channel has enough tokens on this port to fire in state s
(package private) boolean	isExclusiveEnabled(OptimalScheduleFinder._State state) test if the port is enabled for exclusive firing, i.e. if the associated channel has enough tokens on this port to fire exclusively in state s

Methods inherited from class java.lang.Object

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

Field Detail

_portIndex

int _portIndex

The index for this port into the channel's state vector.

_rate

int _rate

the port rate, negative if input port

_channel

OptimalScheduleFinder._Channel _channel

The channel associated with the port.

Constructor Detail

_Port

_Port(int rate,
      OptimalScheduleFinder._Channel channel)

Construct an instance of _Port with rate rate and for channel channel.

Parameters:

rate - port rate (negative for input port)

channel - channel to which it is bound

Method Detail

assignIndex

void assignIndex()

Assign index to the port into the channel state vector only if it is an input port.

isEnabled

boolean isEnabled(OptimalScheduleFinder._State state)

test if the port is enabled, i.e. if the associated channel has enough tokens on this port to fire in state s

Parameters:

state - state

Returns:

true if it is enabled

isExclusiveEnabled

boolean isExclusiveEnabled(OptimalScheduleFinder._State state)

test if the port is enabled for exclusive firing, i.e. if the associated channel has enough tokens on this port to fire exclusively in state s

Parameters:

state - state

Returns:

true if it is enabled

fire

void fire(OptimalScheduleFinder._State state)

Fire the port by accounting the numbers of tokens.

Parameters:

state - state to use for firing