diff options
Diffstat (limited to 'src/junit/com/jogamp')
| -rw-r--r-- | src/junit/com/jogamp/common/util/locks/TestRecursiveThreadGroupLock01.java | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/src/junit/com/jogamp/common/util/locks/TestRecursiveThreadGroupLock01.java b/src/junit/com/jogamp/common/util/locks/TestRecursiveThreadGroupLock01.java new file mode 100644 index 0000000..2eecce1 --- /dev/null +++ b/src/junit/com/jogamp/common/util/locks/TestRecursiveThreadGroupLock01.java @@ -0,0 +1,327 @@ +/** + * 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. + */ + +package com.jogamp.common.util.locks; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStreamReader; +import java.util.Collections; +import java.util.HashMap; +import java.util.Iterator; +import java.util.Map; + +import org.junit.Assert; +import org.junit.Test; + +import com.jogamp.common.os.Platform; +import com.jogamp.junit.util.JunitTracer; + +public class TestRecursiveThreadGroupLock01 extends JunitTracer { + + public enum YieldMode { + NONE(0), YIELD(1), SLEEP(2); + + public final int id; + + YieldMode(int id){ + this.id = id; + } + } + + static void yield(YieldMode mode) { + switch(mode) { + case YIELD: + Thread.yield(); + break; + case SLEEP: + try { + Thread.sleep(10); + } catch (InterruptedException ie) { + ie.printStackTrace(); + } + break; + default: + break; + } + + } + + static class LockedObject { + static final boolean DEBUG = false; + + private RecursiveThreadGroupLock locker; // post + private volatile int slaveCounter; + + public LockedObject() { + locker = LockFactory.createRecursiveThreadGroupLock(); + slaveCounter = 0; + } + + public final void masterAction(String tab, String name, Thread[] slaves, int loops, int mark, final YieldMode yieldMode) { + locker.lock(); + if(DEBUG) { + System.err.println(tab+"<"+name+" c "+slaveCounter); + } + Assert.assertTrue(mark>loops); + Assert.assertTrue(loops*loops>mark); + try { + if(slaveCounter<mark) { + for(int i=0; i<slaves.length; i++) { + locker.addOwner(slaves[i]); + slaves[i].start(); + } + while(slaveCounter<mark) { + yield(yieldMode); + } + } + } finally { + if(DEBUG) { + System.err.println(tab+" "+name+" c "+slaveCounter+">"); + } + // Implicit waits until all slaves got off the lock + locker.unlock(); + } + } + + public final void slaveAction(String tab, String name, int loops, int mark, YieldMode yieldMode) { + if(slaveCounter>=mark) { + if(DEBUG) { + System.err.println(tab+"["+name+" c "+slaveCounter+" - NOP]"); + } + return; + } + locker.lock(); + if(DEBUG) { + System.err.println(tab+"["+name+" c "+slaveCounter); + } + Assert.assertTrue(mark>loops); + Assert.assertTrue(loops*loops>mark); + try { + while(loops>0 && slaveCounter<mark) { + slaveCounter++; + loops--; + } + /** + while(slaveCounter<mark) { + slaveCounter++; + } */ + yield(yieldMode); + } finally { + if(DEBUG) { + System.err.println(tab+" "+name+" c "+slaveCounter+"]"); + } + locker.unlock(); + } + } + + public final boolean isLocked() { + return locker.isLocked(); + } + + } + + interface LockedObjectRunner extends Runnable { + void stop(); + boolean isStarted(); + boolean isStopped(); + void waitUntilStopped(); + } + + class LockedObjectRunner1 implements LockedObjectRunner { + volatile boolean shouldStop; + volatile boolean stopped; + volatile boolean started; + String tab, name; + LockedObject lo; + Thread[] slaves; + int loops; + int mark; + YieldMode yieldMode; + + /** master constructor */ + public LockedObjectRunner1(String tab, String name, LockedObject lo, Thread[] slaves, int loops, int mark, YieldMode yieldMode) { + this.tab = tab; + this.name = name; + this.lo = lo; + this.slaves = slaves; + this.loops = loops; + this.mark = mark; + this.shouldStop = false; + this.stopped = false; + this.yieldMode = yieldMode; + Assert.assertTrue(mark>loops); + Assert.assertTrue(loops*loops>mark); + } + + /** slave constructor */ + public LockedObjectRunner1(String tab, String name, LockedObject lo, int loops, int mark, YieldMode yieldMode) { + this.tab = tab; + this.name = name; + this.lo = lo; + this.slaves = null; // slave + this.loops = loops; + this.mark = mark; + this.shouldStop = false; + this.stopped = false; + this.yieldMode = yieldMode; + Assert.assertTrue(mark>loops); + Assert.assertTrue(loops*loops>mark); + } + + public final void stop() { + shouldStop = true; + } + + public final boolean isStarted() { + return started; + } + public final boolean isStopped() { + return stopped; + } + + public void waitUntilStopped() { + synchronized(this) { + while(!stopped) { + try { + this.wait(); + } catch (InterruptedException e) { + e.printStackTrace(); + } + } + } + + } + + public void run() { + synchronized(this) { + started = true; + for(int i=0; !shouldStop && i<loops; i++) { + if(null != slaves) { + lo.masterAction(tab, name, slaves, loops, mark, yieldMode); + } else { + lo.slaveAction(tab, name, loops, mark, yieldMode); + } + } + stopped = true; + this.notifyAll(); + } + } + } + + protected long testLockedObjectImpl(LockFactory.ImplType implType, boolean fair, + int slaveThreadNum, int concurrentThreadNum, + int loops, int mark, YieldMode yieldMode) throws InterruptedException { + final long t0 = System.currentTimeMillis(); + LockedObject lo = new LockedObject(); + LockedObjectRunner[] concurrentRunners = new LockedObjectRunner[concurrentThreadNum]; + LockedObjectRunner[] slaveRunners = new LockedObjectRunner[slaveThreadNum]; + Thread[] concurrentThreads = new Thread[concurrentThreadNum]; + Thread[] slaveThreads = new Thread[slaveThreadNum]; + Thread[] noCoOwnerThreads = new Thread[0]; + int i; + + for(i=0; i<slaveThreadNum; i++) { + slaveRunners[i] = new LockedObjectRunner1(" ", "s"+i, lo, loops, mark, yieldMode); + String name = "ActionThread-Slaves-"+i+"_of_"+slaveThreadNum; + slaveThreads[i] = new Thread( slaveRunners[i], name ); + } + for(i=0; i<concurrentThreadNum; i++) { + String name; + if(i==0) { + concurrentRunners[i] = new LockedObjectRunner1("", "M0", lo, slaveThreads, loops, mark, yieldMode); + name = "ActionThread-Master-"+i+"_of_"+concurrentThreadNum; + } else { + concurrentRunners[i] = new LockedObjectRunner1(" ", "O"+i, lo, noCoOwnerThreads, loops, mark, yieldMode); + name = "ActionThread-Others-"+i+"_of_"+concurrentThreadNum; + } + concurrentThreads[i] = new Thread( concurrentRunners[i], name ); + concurrentThreads[i].start(); + if(i==0) { + // master thread w/ slaves shall start first + while(!concurrentRunners[i].isStarted()) { + Thread.sleep(100); + } + } + } + + for( i=0; i<slaveThreadNum; i++ ) { + slaveRunners[i].waitUntilStopped(); + } + for( i=0; i<concurrentThreadNum; i++ ) { + concurrentRunners[i].waitUntilStopped(); + } + Assert.assertEquals(0, lo.locker.getHoldCount()); + Assert.assertEquals(false, lo.locker.isLocked()); + + final long dt = System.currentTimeMillis()-t0; + + System.err.println(); + final String fair_S = fair ? "fair " : "unfair" ; + System.err.printf("---- TestRecursiveLock01.testLockedObjectThreading: i %5s, %s, threads %2d, loops-outter %6d, loops-inner %6d, yield %5s - dt %6d ms", + implType, fair_S, concurrentThreadNum, loops, mark, yieldMode, dt); + System.err.println(); + return dt; + } + + @Test + public void testTwoThreadsInGroup() throws InterruptedException { + LockFactory.ImplType t = LockFactory.ImplType.Int02ThreadGroup; + boolean fair=true; + int coOwnerThreadNum=2; + int threadNum=5; + int loops=1000; + int mark=10000; + YieldMode yieldMode=YieldMode.YIELD; + + if( Platform.getCPUFamily() == Platform.CPUFamily.ARM ) { + loops=5; mark=10; + } + + testLockedObjectImpl(t, fair, coOwnerThreadNum, threadNum, loops, mark, yieldMode); + } + + public static void main(String args[]) throws IOException, InterruptedException { + String tstname = TestRecursiveThreadGroupLock01.class.getName(); + org.junit.runner.JUnitCore.main(tstname); + + /** + BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in)); + System.err.println("Press enter to continue"); + System.err.println(stdin.readLine()); + TestRecursiveLock01 t = new TestRecursiveLock01(); + t.testLockedObjectThreading5x1000x10000N_Int01_Unfair(); + + t.testLockedObjectThreading5x1000x10000N_Int01_Fair(); + t.testLockedObjectThreading5x1000x10000N_Java5_Fair(); + t.testLockedObjectThreading5x1000x10000N_Int01_Unfair(); + t.testLockedObjectThreading5x1000x10000N_Java5_Unfair(); + */ + } + +} |