ptolemy.actor.process
Class NotifyThread

java.lang.Object
  java.lang.Thread
      ptolemy.actor.process.NotifyThread

All Implemented Interfaces:

java.lang.Runnable

public class NotifyThread
extends java.lang.Thread

Helper thread for calling notifyAll() on a single lock or a LinkedList of locks. Since this is a new thread without any locks, calling notifyAll from this thread reduces the possibility of deadlocks.

To use this to wake up any threads waiting on a lock, create a new instance of this class with a LinkedList of lock objects (or single lock) to call notifyAll() on.

Since:

Ptolemy II 0.2

Version:

$Id: NotifyThread.java 57040 2010-01-27 20:52:32Z cxh $

Author:

Neil Smyth, Mudit Goel

Accepted Rating:

Yellow (mudit)

Proposed Rating:

Green (mudit)

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

private java.lang.Object	_lock
private java.util.LinkedList	_locks

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

NotifyThread(java.util.LinkedList locks)
Construct a thread to be used call notifyAll() on a set of locks.

NotifyThread(java.lang.Object lock)
Construct a thread to be used call notifyAll() on a set of locks.

Method Summary

void	run() Call NotifyAll() on the lock object (or objects) passed to this class in its constructor.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

_locks

private java.util.LinkedList _locks

_lock

private java.lang.Object _lock

Constructor Detail

NotifyThread

public NotifyThread(java.util.LinkedList locks)

Construct a thread to be used call notifyAll() on a set of locks.

Parameters:

locks - The set of locks to call notifyAll() on.

NotifyThread

public NotifyThread(java.lang.Object lock)

Construct a thread to be used call notifyAll() on a set of locks.

Parameters:

lock - The lock to call notifyAll() on.

Method Detail

run

public void run()

Call NotifyAll() on the lock object (or objects) passed to this class in its constructor.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread