From 78d9e7c84f03ac7b83ad2933cac884ce9ecac161 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Sun, 13 May 2012 22:01:00 +0200
Subject: GLContext/Surface Deadlock: Add unit test, provoking deadlock w/ 2
 threads, one holding the surfaceLock acquiring ctxLock where ctx acquires the
 surfaceLock

---
 .../jogl/acore/TestGLContextSurfaceLockNEWT.java   | 218 +++++++++++++++++++++
 1 file changed, 218 insertions(+)
 create mode 100644 src/test/com/jogamp/opengl/test/junit/jogl/acore/TestGLContextSurfaceLockNEWT.java

(limited to 'src')

diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestGLContextSurfaceLockNEWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestGLContextSurfaceLockNEWT.java
new file mode 100644
index 000000000..4b019d9be
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/acore/TestGLContextSurfaceLockNEWT.java
@@ -0,0 +1,218 @@
+/**
+ * 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.opengl.test.junit.jogl.acore;
+
+import java.io.IOException;
+
+import javax.media.nativewindow.NativeSurface;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLProfile;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import com.jogamp.newt.opengl.GLWindow;
+import com.jogamp.opengl.test.junit.jogl.demos.es2.GearsES2;
+import com.jogamp.opengl.test.junit.util.UITestCase;
+
+public class TestGLContextSurfaceLockNEWT extends UITestCase {
+    static final int demoSize = 64;
+    
+    public abstract class MyRunnable implements Runnable {
+        final Object postSync;
+        final int id;
+        boolean done = false;
+        
+        public MyRunnable(Object postSync, int id) {
+            this.postSync = postSync;
+            this.id = id;
+        }
+        
+        public boolean done() { return done; }
+    }
+    
+    public class RudeAnimator extends MyRunnable {
+        private final GLAutoDrawable glad;
+        private final int frameCount;
+        
+        public RudeAnimator(GLAutoDrawable glad, int frameCount, Object postSync, int id) {
+            super(postSync, id);
+            this.glad = glad;
+            this.frameCount = frameCount;
+        }
+        
+        public void run() {
+            System.err.println("Animatr "+id+": PRE: "+Thread.currentThread().getName());
+            
+            for(int c=0; c<frameCount; c++) {
+                glad.display();
+            }
+            
+            System.err.println("Animatr "+id+": DONE/SYNC: "+Thread.currentThread().getName());
+            synchronized (postSync) {
+                done = true;
+                System.err.println("Animatr "+id+": END: "+Thread.currentThread().getName());
+                postSync.notifyAll();
+            }
+        }
+    }
+
+    /**
+     * Emulates a resize behavior with immediate display() call
+     * while the surface is still locked.
+     */
+    public class RudeResizer extends MyRunnable {
+        private final GLWindow win;
+        private final int actionCount;
+        
+        public RudeResizer(GLWindow win, int actionCount, Object postSync, int id) {
+            super(postSync, id);
+            this.win = win;
+            this.actionCount = actionCount;
+        }
+        
+        public void run() {
+            System.err.println("Resizer "+id+": PRE: "+Thread.currentThread().getName());
+            
+            for(int c=0; c<actionCount; c++) {
+                win.runOnEDTIfAvail(false, new Runnable() {
+                    public void run() {
+                        // Normal resize, may trigger immediate display within lock
+                        win.setSize(win.getWidth()+1, win.getHeight()+1);
+
+                        // Force display within surface lock.
+                        // This procedure emulates the sensitive behavior 
+                        // for all platforms directly.
+                        int res = win.lockSurface();
+                        if(res > NativeSurface.LOCK_SURFACE_NOT_READY) {
+                            try {
+                                win.display();
+                            } finally {
+                                win.unlockSurface();
+                            }
+                        }
+                    }});
+            }
+            
+            System.err.println("Resizer "+id+": DONE/SYNC: "+Thread.currentThread().getName());
+            synchronized (postSync) {
+                done = true;
+                System.err.println("Resizer "+id+": END: "+Thread.currentThread().getName());
+                postSync.notifyAll();
+            }
+        }
+    }
+    
+    protected static boolean done(MyRunnable[] tasks) {
+        for(int i=tasks.length-1; i>=0; i--) {
+            if(!tasks[i].done()) {
+                return false;
+            }
+        }
+        return true;
+    }
+    
+    protected static boolean isDead(Thread[] threads) {
+        for(int i=threads.length-1; i>=0; i--) {
+            if(threads[i].isAlive()) {
+                return false;
+            }
+        }
+        return true;
+    }
+    
+    protected void runJOGLTasks(int animThreadCount, int frameCount, int reszThreadCount, int resizeCount) throws InterruptedException {
+        GLWindow glWindow = GLWindow.create(new GLCapabilities(GLProfile.getDefault()));
+        Assert.assertNotNull(glWindow);
+        
+        glWindow.addGLEventListener(new GearsES2(0));
+        glWindow.setSize(demoSize, demoSize);
+        glWindow.setVisible(true);
+        
+        final String currentThreadName = Thread.currentThread().getName();
+        final Object sync = new Object();
+        final MyRunnable[] tasks = new MyRunnable[animThreadCount+reszThreadCount];
+        final Thread[] threads = new Thread[animThreadCount+reszThreadCount];
+        int i=0;
+        
+        System.err.println("animThreadCount "+animThreadCount+", frameCount "+frameCount);
+        System.err.println("reszThreadCount "+reszThreadCount+", resizeCount "+resizeCount);
+        System.err.println("tasks "+tasks.length+", threads "+threads.length);
+
+        for(; i<animThreadCount; i++) {
+            System.err.println("create anim task/thread "+i);
+            tasks[i] = new RudeAnimator(glWindow, frameCount, sync, i);                
+            threads[i] = new Thread(tasks[i], currentThreadName+"-anim"+i);
+        }
+        for(; i<animThreadCount+reszThreadCount; i++) {
+            System.err.println("create resz task/thread "+i);
+            tasks[i] = new RudeResizer(glWindow, resizeCount, sync, i);
+            threads[i] = new Thread(tasks[i], currentThreadName+"-resz"+i);
+        }
+
+        for(i=0; i<animThreadCount+reszThreadCount; i++) {
+            System.err.println("start thread "+i);
+            threads[i].start();
+        }
+        synchronized (sync) {
+            while(!done(tasks)) {
+                try {
+                    sync.wait();
+                } catch (InterruptedException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        }
+        i=0;
+        while(i<30 && !isDead(threads)) {
+            Thread.sleep(100);
+            i++;
+        }
+    }
+    
+    @Test
+    public void test01_1AThreads_600Frames() throws InterruptedException {
+        runJOGLTasks(1, 600, 1, 600);
+    }
+    
+    public static void main(String args[]) throws IOException {
+        for(int i=0; i<args.length; i++) {
+            if(args[i].equals("-time")) {
+                i++;
+                try {
+                    // duration = Integer.parseInt(args[i]);
+                } catch (Exception ex) { ex.printStackTrace(); }
+            }
+        }
+        String tstname = TestGLContextSurfaceLockNEWT.class.getName();
+        org.junit.runner.JUnitCore.main(tstname);
+    }
+
+}
-- 
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