edu.emory.mathcs.backport.java.util.concurrent.helpers
Class WaitQueue

java.lang.Object
  edu.emory.mathcs.backport.java.util.concurrent.helpers.WaitQueue

Direct Known Subclasses:

FIFOWaitQueue

public abstract class WaitQueue

extends java.lang.Object

Base class for internal queue classes for semaphores, etc. Relies on subclasses to actually implement queue mechanics. NOTE: this class is NOT present in java.util.concurrent.

Nested Class Summary

static interface	WaitQueue.QueuedSync
static class	WaitQueue.WaitNode

Constructor Summary

WaitQueue()

Method Summary

abstract WaitQueue.WaitNode	extract()
abstract int	getLength()
abstract java.util.Collection	getWaitingThreads()
abstract boolean	hasNodes()
abstract void	insert(WaitQueue.WaitNode w)
abstract boolean	isWaiting(java.lang.Thread thread)
abstract void	putBack(WaitQueue.WaitNode w)

Methods inherited from class java.lang.Object

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

Constructor Detail

WaitQueue

public WaitQueue()

Method Detail

insert

public abstract void insert(WaitQueue.WaitNode w)

extract

public abstract WaitQueue.WaitNode extract()

putBack

public abstract void putBack(WaitQueue.WaitNode w)

hasNodes

public abstract boolean hasNodes()

getLength

public abstract int getLength()

getWaitingThreads

public abstract java.util.Collection getWaitingThreads()

isWaiting

public abstract boolean isWaiting(java.lang.Thread thread)