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

Class WaitQueue

public abstract class WaitQueue extends 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

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

Method Detail

extract

public abstract WaitQueue.WaitNode extract()

getLength

public abstract int getLength()

getWaitingThreads

public abstract Collection getWaitingThreads()

hasNodes

public abstract boolean hasNodes()

insert

public abstract void insert(WaitQueue.WaitNode w)

isWaiting

public abstract boolean isWaiting(Thread thread)

putBack

public abstract void putBack(WaitQueue.WaitNode w)