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src/junit/com/jogamp/common/util/TestRecursiveToolkitLock.java
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| /** | ||
| * Copyright 2010 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. | ||
| */ | ||
|
|
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| package com.jogamp.common.util; | ||
|
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| import java.lang.reflect.*; | ||
| import java.io.IOException; | ||
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| import org.junit.Assert; | ||
| import org.junit.Before; | ||
| import org.junit.BeforeClass; | ||
| import org.junit.After; | ||
| import org.junit.AfterClass; | ||
| import org.junit.Test; | ||
|
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| public class TestRecursiveToolkitLock { | ||
|
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| static final int YIELD_NONE = 0; | ||
| static final int YIELD_YIELD = 1; | ||
| static final int YIELD_SLEEP = 2; | ||
|
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| static void yield(int mode) { | ||
| switch(mode) { | ||
| case YIELD_YIELD: | ||
| Thread.yield(); | ||
| break; | ||
| case YIELD_SLEEP: | ||
| try { | ||
| Thread.sleep(20); | ||
| } catch (InterruptedException ie) { | ||
| ie.printStackTrace(); | ||
| } | ||
| break; | ||
| default: | ||
| break; | ||
| } | ||
|
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| } | ||
|
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| static class LockedObject { | ||
| static final boolean DEBUG = false; | ||
|
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| public LockedObject() { | ||
| locker = new RecursiveToolkitLock(); | ||
| actionCounter = 0; | ||
| } | ||
|
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| public final void action1Direct(int l, int yieldMode) { | ||
| if(DEBUG) { | ||
| System.err.print("<a1"); | ||
| } | ||
| lock(); | ||
| try { | ||
| if(DEBUG) { | ||
| System.err.print("+"); | ||
| } | ||
| while(l>0) l--; | ||
| actionCounter++; | ||
| yield(yieldMode); | ||
| } finally { | ||
| if(DEBUG) { | ||
| System.err.print("-"); | ||
| } | ||
| unlock(); | ||
| if(DEBUG) { | ||
| System.err.println(">"); | ||
| } | ||
| } | ||
| } | ||
|
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| class Action2 implements Runnable { | ||
| int l, yieldMode; | ||
| Action2(int l, int yieldMode) { | ||
| this.l=l; | ||
| this.yieldMode=yieldMode; | ||
| } | ||
| public void run() { | ||
| if(DEBUG) { | ||
| System.err.print("[a2"); | ||
| } | ||
| lock(); | ||
| try { | ||
| if(DEBUG) { | ||
| System.err.print("+"); | ||
| } | ||
| while(l>0) l--; | ||
| actionCounter++; | ||
| yield(yieldMode); | ||
| } finally { | ||
| if(DEBUG) { | ||
| System.err.print("-"); | ||
| } | ||
| unlock(); | ||
| if(DEBUG) { | ||
| System.err.println("]"); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| public final void action2Deferred(int l, int yieldMode) { | ||
| Thread thread = new Thread(new Action2(l, yieldMode), Thread.currentThread()+"-action2Deferred"); | ||
| thread.start(); | ||
| } | ||
|
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| public final void lock() { | ||
| locker.lock(); | ||
| } | ||
|
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| public final void unlock() { | ||
| locker.unlock(); | ||
| } | ||
|
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| public final boolean isLocked() { | ||
| return locker.isLocked(); | ||
| } | ||
|
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| RecursiveToolkitLock locker; | ||
| int actionCounter; | ||
| } | ||
|
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| interface LockedObjectIf extends Runnable { | ||
| void stop(); | ||
| boolean isStopped(); | ||
| int remaining(); | ||
| } | ||
|
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| class LockedObjectAction1 implements LockedObjectIf { | ||
| boolean shouldStop; | ||
| boolean stopped; | ||
| LockedObject lo; | ||
| volatile int loops; | ||
| int iloops; | ||
| int yieldMode; | ||
|
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| public LockedObjectAction1(LockedObject lo, int loops, int iloops, int yieldMode) { | ||
| this.lo = lo; | ||
| this.loops = loops; | ||
| this.iloops = iloops; | ||
| this.shouldStop = false; | ||
| this.stopped = false; | ||
| this.yieldMode = yieldMode; | ||
| } | ||
|
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| public final synchronized void stop() { | ||
| shouldStop = true; | ||
| } | ||
|
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| public final synchronized boolean isStopped() { | ||
| return stopped; | ||
| } | ||
|
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| public final int remaining() { | ||
| return loops; | ||
| } | ||
|
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| public void run() { | ||
| while(!shouldStop && loops>0) { | ||
| lo.action1Direct(iloops, yieldMode); | ||
| lo.action2Deferred(iloops, yieldMode); | ||
| loops--; | ||
| } | ||
| synchronized(this) { | ||
| stopped = true; | ||
| notifyAll(); | ||
| } | ||
| } | ||
| } | ||
|
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| protected void testLockedObjectImpl(int threadNum, int loops, int iloops, int yieldMode) throws InterruptedException { | ||
| LockedObject lo = new LockedObject(); | ||
| LockedObjectIf[] runners = new LockedObjectIf[threadNum]; | ||
| Thread[] threads = new Thread[threadNum]; | ||
| int i; | ||
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| for(i=0; i<threadNum; i++) { | ||
| runners[i] = new LockedObjectAction1(lo, loops, iloops, yieldMode); | ||
| threads[i] = new Thread( runners[i], Thread.currentThread()+"-ActionThread-"+i+"/"+threadNum); | ||
| threads[i].start(); | ||
| } | ||
|
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| int active; | ||
| do { | ||
| active = threadNum; | ||
| for(i=0; i<threadNum; i++) { | ||
| if(runners[i].isStopped()) { | ||
| active--; | ||
| } | ||
| } | ||
| yield(yieldMode); | ||
| } while(0<active); | ||
| } | ||
|
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| // @Test | ||
| public void testLockedObjectThreading2x10000() throws InterruptedException { | ||
| System.err.println("++++ TestRecursiveToolkitLock.testLockedObjectThreading2x10000"); | ||
| testLockedObjectImpl(2, 10000, 10000, YIELD_NONE); | ||
| System.err.println("---- TestRecursiveToolkitLock.testLockedObjectThreading2x10000"); | ||
| } | ||
|
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| @Test | ||
| public void testLockedObjectThreading200x200Yield() throws InterruptedException { | ||
| System.err.println("++++ TestRecursiveToolkitLock.testLockedObjectThreading200x200-Yield"); | ||
| testLockedObjectImpl(200, 200, 100, YIELD_YIELD); | ||
| System.err.println("---- TestRecursiveToolkitLock.testLockedObjectThreading200x200-Yield"); | ||
| } | ||
|
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| // @Test | ||
| public void testLockedObjectThreading200x200Sleep() throws InterruptedException { | ||
| System.err.println("++++ TestRecursiveToolkitLock.testLockedObjectThreading200x200-Sleep"); | ||
| testLockedObjectImpl(200, 200, 100, YIELD_SLEEP); | ||
| System.err.println("---- TestRecursiveToolkitLock.testLockedObjectThreading200x200-Sleep"); | ||
| } | ||
|
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| @Test | ||
| public void testLockedObjectThreading200x200None() throws InterruptedException { | ||
| System.err.println("++++ TestRecursiveToolkitLock.testLockedObjectThreading200x200-None"); | ||
| testLockedObjectImpl(200, 200, 100, YIELD_NONE); | ||
| System.err.println("---- TestRecursiveToolkitLock.testLockedObjectThreading200x200-None"); | ||
| } | ||
|
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| static int atoi(String a) { | ||
| int i=0; | ||
| try { | ||
| i = Integer.parseInt(a); | ||
| } catch (Exception ex) { ex.printStackTrace(); } | ||
| return i; | ||
| } | ||
|
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| public static void main(String args[]) throws IOException { | ||
| /*for(int i=0; i<args.length; i++) { | ||
| if(args[i].equals("-time")) { | ||
| durationPerTest = atoi(args[++i]); | ||
| } | ||
| } | ||
| System.out.println("durationPerTest: "+durationPerTest); | ||
| */ | ||
| String tstname = TestRecursiveToolkitLock.class.getName(); | ||
| /* | ||
| org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(new String[] { | ||
| tstname, | ||
| "filtertrace=true", | ||
| "haltOnError=false", | ||
| "haltOnFailure=false", | ||
| "showoutput=true", | ||
| "outputtoformatters=true", | ||
| "logfailedtests=true", | ||
| "logtestlistenerevents=true", | ||
| "formatter=org.apache.tools.ant.taskdefs.optional.junit.PlainJUnitResultFormatter", | ||
| "formatter=org.apache.tools.ant.taskdefs.optional.junit.XMLJUnitResultFormatter,TEST-"+tstname+".xml" } ); */ | ||
| org.junit.runner.JUnitCore.main(tstname); | ||
| } | ||
|
|
||
| } |