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Diffstat (limited to 'libjava/classpath/gnu/java/util/prefs/EventDispatcher.java')
-rw-r--r-- | libjava/classpath/gnu/java/util/prefs/EventDispatcher.java | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/libjava/classpath/gnu/java/util/prefs/EventDispatcher.java b/libjava/classpath/gnu/java/util/prefs/EventDispatcher.java deleted file mode 100644 index f73c3e70311..00000000000 --- a/libjava/classpath/gnu/java/util/prefs/EventDispatcher.java +++ /dev/null @@ -1,113 +0,0 @@ -/* EventDispatcher.java -- Dispatch events for prefs - Copyright (C) 2006 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package gnu.java.util.prefs; - -import java.util.ArrayList; - -/** - * This is a helper class used for dispatching events for - * the prefs package. - */ -public class EventDispatcher extends Thread -{ - // This is a singleton class. We dispatch all events via a - // new Thread which is created on demand. - private static final Thread dispatchThread = new EventDispatcher(); - - // This is a queue of events to dispatch. This thread waits on - // the queue and when notified will remove events until the queue - // is empty. - private static final ArrayList<Runnable> queue = new ArrayList<Runnable>(); - - // FIXME: this thread probably ought to go in some classpath-internal - // ThreadGroup. But we don't have that yet. - private EventDispatcher() - { - setDaemon(true); - start(); - } - - public void run() - { - while (true) - { - Runnable r; - synchronized (queue) - { - while (queue.size() == 0) - { - try - { - queue.wait(); - } - catch (InterruptedException _) - { - // Ignore. - } - } - r = queue.remove(0); - } - // Invoke outside the synchronization, so that - // we aren't blocking other threads from posting events. - try - { - r.run(); - } - catch (Throwable _) - { - // Ignore. - } - } - } - - /** - * Add a new runnable to the event dispatch queue. The - * runnable will be invoked in the event dispatch queue - * without any locks held. - * @param runner the Runnable to dispatch - */ - public static void dispatch(Runnable runner) - { - synchronized (queue) - { - queue.add(runner); - queue.notify(); - } - } -} |