org.apache.cassandra.utils.concurrent

Class WaitQueue.AbstractSignal

java.lang.Object

org.apache.cassandra.utils.concurrent.WaitQueue.AbstractSignal

All Implemented Interfaces:

WaitQueue.Signal

Enclosing class:

WaitQueue

public abstract static class WaitQueue.AbstractSignal
extends java.lang.Object
implements WaitQueue.Signal

An abstract signal implementation

Constructor Summary

Constructors

Constructor and Description
AbstractSignal()

Method Summary

Modifier and Type	Method and Description
void	await() Wait until signalled, or throw an InterruptedException if interrupted before this happens.
void	awaitUninterruptibly() Wait, without throwing InterruptedException, until signalled.
boolean	awaitUntil(long until) Wait until signalled, or the provided time is reached, or the thread is interrupted.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.utils.concurrent.WaitQueue.Signal

cancel, checkAndClear, isCancelled, isSet, isSignalled

Constructor Detail

AbstractSignal

public AbstractSignal()

Method Detail

awaitUninterruptibly

public void awaitUninterruptibly()

Description copied from interface: WaitQueue.Signal

Wait, without throwing InterruptedException, until signalled. On exit isSignalled() must be true. If the thread is interrupted in the meantime, the interrupted flag will be set.

Specified by:

awaitUninterruptibly in interface WaitQueue.Signal

await

public void await()
           throws java.lang.InterruptedException

Description copied from interface: WaitQueue.Signal

Wait until signalled, or throw an InterruptedException if interrupted before this happens. On normal exit isSignalled() must be true; however if InterruptedException is thrown isCancelled() will be true.

Specified by:

await in interface WaitQueue.Signal

Throws:

java.lang.InterruptedException

awaitUntil

public boolean awaitUntil(long until)
                   throws java.lang.InterruptedException

Description copied from interface: WaitQueue.Signal

Wait until signalled, or the provided time is reached, or the thread is interrupted. If signalled, isSignalled() will be true on exit, and the method will return true; if timedout, the method will return false and isCancelled() will be true; if interrupted an InterruptedException will be thrown and isCancelled() will be true.

Specified by:

awaitUntil in interface WaitQueue.Signal

Parameters:

until - System.nanoTime() to wait until

Returns:

true if signalled, false if timed out

Throws:

java.lang.InterruptedException