diff options
Diffstat (limited to 'src/newt/classes/com/jogamp/newt/swt/SWTEDTUtil.java')
-rw-r--r-- | src/newt/classes/com/jogamp/newt/swt/SWTEDTUtil.java | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/src/newt/classes/com/jogamp/newt/swt/SWTEDTUtil.java b/src/newt/classes/com/jogamp/newt/swt/SWTEDTUtil.java deleted file mode 100644 index 1c20fe524..000000000 --- a/src/newt/classes/com/jogamp/newt/swt/SWTEDTUtil.java +++ /dev/null @@ -1,313 +0,0 @@ -/** - * Copyright 2012 JogAmp Community. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, are - * permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, this list of - * conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright notice, this list - * of conditions and the following disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * The views and conclusions contained in the software and documentation are those of the - * authors and should not be interpreted as representing official policies, either expressed - * or implied, of JogAmp Community. - */ -package com.jogamp.newt.swt; - -import javax.media.nativewindow.NativeWindowException; - -import jogamp.newt.Debug; - -import com.jogamp.common.util.RunnableTask; -import com.jogamp.newt.util.EDTUtil; - -/** - * Simple {@link EDTUtil} implementation utilizing the SWT UI thread - * of the given {@link Display}. - */ -public class SWTEDTUtil implements EDTUtil { - public static final boolean DEBUG = Debug.debug("EDT"); - - private final Object edtLock = new Object(); // locking the EDT start/stop state - private final ThreadGroup threadGroup; - private final String name; - private final Runnable dispatchMessages; - private final org.eclipse.swt.widgets.Display swtDisplay; - private NewtEventDispatchThread nedt = null; - private int start_iter=0; - private static long pollPeriod = EDTUtil.defaultEDTPollPeriod; - - public SWTEDTUtil(final com.jogamp.newt.Display newtDisplay, org.eclipse.swt.widgets.Display swtDisplay) { - this.threadGroup = Thread.currentThread().getThreadGroup(); - this.name=Thread.currentThread().getName()+"-SWTDisplay-"+newtDisplay.getFQName()+"-EDT-"; - this.dispatchMessages = new Runnable() { - public void run() { - ((jogamp.newt.DisplayImpl) newtDisplay).dispatchMessages(); - } }; - this.swtDisplay = swtDisplay; - this.nedt = new NewtEventDispatchThread(threadGroup, name); - this.nedt.setDaemon(true); // don't stop JVM from shutdown .. - } - - public final org.eclipse.swt.widgets.Display getDisplay() { - return swtDisplay; - } - - @Override - public long getPollPeriod() { - return pollPeriod; - } - - @Override - public void setPollPeriod(long ms) { - pollPeriod = ms; - } - - @Override - public void reset() { - synchronized(edtLock) { - waitUntilStopped(); - if(DEBUG) { - System.err.println(Thread.currentThread()+": SWT-EDT reset - edt: "+nedt); - } - this.nedt = new NewtEventDispatchThread(threadGroup, name); - this.nedt.setDaemon(true); // don't stop JVM from shutdown .. - } - } - - private final void startImpl() { - if(nedt.isAlive()) { - throw new RuntimeException("SWT-EDT Thread.isAlive(): true, isRunning: "+nedt.isRunning()+", edt: "+nedt); - } - start_iter++; - nedt.setName(name+start_iter); - nedt.shouldStop = false; - if(DEBUG) { - System.err.println(Thread.currentThread()+": SWT-EDT START - edt: "+nedt); - // Thread.dumpStack(); - } - nedt.start(); - } - - @Override - public boolean isCurrentThreadEDT() { - return swtDisplay.getThread() == Thread.currentThread(); - } - - @Override - public final boolean isCurrentThreadNEDT() { - return nedt == Thread.currentThread(); - } - - @Override - public final boolean isCurrentThreadEDTorNEDT() { - final Thread ct = Thread.currentThread(); - return ct == swtDisplay.getThread() || ct == nedt ; - } - - @Override - public boolean isRunning() { - return nedt.isRunning() ; // SWT is always running - } - - @Override - public final void invokeStop(Runnable task) { - invokeImpl(true, task, true); - } - - @Override - public final void invoke(boolean wait, Runnable task) { - invokeImpl(wait, task, false); - } - - private void invokeImpl(boolean wait, Runnable task, boolean stop) { - Throwable throwable = null; - RunnableTask rTask = null; - Object rTaskLock = new Object(); - synchronized(rTaskLock) { // lock the optional task execution - synchronized(edtLock) { // lock the EDT status - if( nedt.shouldStop ) { - // drop task .. - if(DEBUG) { - System.err.println(Thread.currentThread()+": Warning: SWT-EDT about (1) to stop, won't enqueue new task: "+nedt); - Thread.dumpStack(); - } - return; - } - // System.err.println(Thread.currentThread()+" XXX stop: "+stop+", tasks: "+edt.tasks.size()+", task: "+task); - // Thread.dumpStack(); - if(stop) { - synchronized(nedt.sync) { - nedt.shouldStop = true; - nedt.sync.notifyAll(); // stop immediate if waiting (poll freq) - } - if(DEBUG) { - System.err.println(Thread.currentThread()+": SWT-EDT signal STOP (on edt: "+isCurrentThreadEDT()+") - "+nedt); - // Thread.dumpStack(); - } - } else if( !nedt.isRunning() ) { - // start if should not stop && not started yet - startImpl(); - } - if( null == task ) { - wait = false; - } else if( isCurrentThreadEDT() ) { - task.run(); - wait = false; // running in same thread (EDT) -> no wait - } else if( swtDisplay.isDisposed() ) { - wait = false; // drop task, SWT disposed - } else { - rTask = new RunnableTask(task, - wait ? rTaskLock : null, - true /* always catch and report Exceptions, don't disturb EDT */); - swtDisplay.asyncExec(rTask); - } - } - if( wait ) { - try { - rTaskLock.wait(); // free lock, allow execution of rTask - } catch (InterruptedException ie) { - throwable = ie; - } - if(null==throwable) { - throwable = rTask.getThrowable(); - } - if(null!=throwable) { - if(throwable instanceof NativeWindowException) { - throw (NativeWindowException)throwable; - } - throw new RuntimeException(throwable); - } - } - } - } - - @Override - final public void waitUntilIdle() { - final NewtEventDispatchThread _nedt; - synchronized(edtLock) { - _nedt = nedt; - } - final Thread ct = Thread.currentThread(); - if(!_nedt.isRunning() || _nedt == ct || swtDisplay.getThread() == ct) { - return; - } - try { - swtDisplay.syncExec(new Runnable() { - public void run() { } - }); - } catch (Exception e) { } - } - - @Override - final public void waitUntilStopped() { - synchronized(edtLock) { - final Thread ct = Thread.currentThread(); - if(nedt.isRunning() && nedt != ct && swtDisplay.getThread() != ct) { - while(nedt.isRunning()) { - try { - edtLock.wait(); - } catch (InterruptedException e) { - e.printStackTrace(); - } - } - } - } - } - - class NewtEventDispatchThread extends Thread { - volatile boolean shouldStop = false; - volatile boolean isRunning = false; - Object sync = new Object(); - - public NewtEventDispatchThread(ThreadGroup tg, String name) { - super(tg, name); - } - - final public boolean isRunning() { - return isRunning; - } - - @Override - final public void start() throws IllegalThreadStateException { - isRunning = true; - super.start(); - } - - /** - * Utilizing locking only on tasks and its execution, - * not for event dispatching. - */ - @Override - final public void run() { - if(DEBUG) { - System.err.println(getName()+": SWT-EDT run() START "+ getName()); - } - RuntimeException error = null; - try { - do { - // event dispatch - if(!shouldStop) { - // EDT invoke thread is SWT-EDT, - // hence dispatching is required to run on SWT-EDT as well. - // Otherwise a deadlock may happen due to dispatched event's - // triggering a locking action. - if ( !swtDisplay.isDisposed() ) { - swtDisplay.syncExec(dispatchMessages); - } else { - dispatchMessages.run(); - } - } - // wait - synchronized(sync) { - if(!shouldStop) { - try { - sync.wait(pollPeriod); - } catch (InterruptedException e) { - e.printStackTrace(); - } - } - } - } while(!shouldStop) ; - } catch (Throwable t) { - // handle errors .. - shouldStop = true; - if(t instanceof RuntimeException) { - error = (RuntimeException) t; - } else { - error = new RuntimeException("Within SWT-EDT", t); - } - } finally { - if(DEBUG) { - System.err.println(getName()+": SWT-EDT run() END "+ getName()+", "+error); - } - synchronized(edtLock) { - isRunning = !shouldStop; - if(!isRunning) { - edtLock.notifyAll(); - } - } - if(DEBUG) { - System.err.println(getName()+": SWT-EDT run() EXIT "+ getName()+", exception: "+error); - } - if(null!=error) { - throw error; - } - } // finally - } // run() - } // EventDispatchThread - -} |