javax.realtime.DSS
Class FIFOWaiterSet

java.lang.Object
  javax.realtime.DSS.WaiterSet
      javax.realtime.DSS.FIFOWaiterSet

public class FIFOWaiterSet

extends WaiterSet

Collection type for queues of RealTimeThread's waiting for a Resource. FIFO order is used.

Author:

gary

Field Summary

Fields inherited from class javax.realtime.DSS.WaiterSet

waiters

Constructor Summary

FIFOWaiterSet()
Void constructor.

Method Summary

RealtimeThread	dequeue() Dequeue the next RealTimeThread from this WaiterSet.
void	enqueue(RealtimeThread thread) Enqueue the given RealTimeThread.
RealtimeThread	first() Get the first item in this FIFOWaiterSet, which is assumed to be non-empty.
boolean	remove(RealtimeThread thread) Remove a given thread from this FIFOWaiterSet.
java.lang.String	toString() Construct a printable representation of this FIFOWaiterSet

Methods inherited from class javax.realtime.DSS.WaiterSet

isEmpty, iterator, size

Methods inherited from class java.lang.Object

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

Constructor Detail

FIFOWaiterSet

public FIFOWaiterSet()

Void constructor.

Method Detail

remove

public boolean remove(RealtimeThread thread)

Remove a given thread from this FIFOWaiterSet.

Overrides:

remove in class WaiterSet

Parameters:

thread - the RealTimeThread to be removed.

Returns:

true if it was removed.

dequeue

public RealtimeThread dequeue()

Dequeue the next RealTimeThread from this WaiterSet.

Specified by:

dequeue in class WaiterSet

Returns:

the RealTimeThread dequeued.

enqueue

public void enqueue(RealtimeThread thread)

Enqueue the given RealTimeThread. Order is by FIFO.

Specified by:

enqueue in class WaiterSet

Parameters:

thread - the RealTimeThread to be enqueued.

first

public RealtimeThread first()

Get the first item in this FIFOWaiterSet, which is assumed to be non-empty. Do not dequeue that item.

Specified by:

first in class WaiterSet

Returns:

the first item

toString

public java.lang.String toString()

Construct a printable representation of this FIFOWaiterSet

Returns:

the printable representation