| /******************************************************************************* |
| * Copyright (c) 2009, 2010 Nokia and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Nokia - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.cdt.debug.edc.debugger.tests; |
| |
| import java.util.concurrent.RejectedExecutionException; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import junit.framework.Assert; |
| |
| import org.eclipse.cdt.debug.core.ICDTLaunchConfigurationConstants; |
| import org.eclipse.cdt.debug.edc.internal.services.dsf.INoop; |
| import org.eclipse.cdt.debug.edc.internal.services.dsf.RunControl.ExecutionDMC; |
| import org.eclipse.cdt.debug.edc.launch.EDCLaunch; |
| import org.eclipse.cdt.debug.edc.services.Stack; |
| import org.eclipse.cdt.debug.edc.services.Stack.StackFrameDMC; |
| import org.eclipse.cdt.debug.edc.tests.TestUtils; |
| import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor; |
| import org.eclipse.cdt.dsf.concurrent.RequestMonitor; |
| import org.eclipse.cdt.dsf.debug.service.IStack; |
| import org.eclipse.cdt.dsf.debug.service.IStack.IFrameDMContext; |
| import org.eclipse.cdt.dsf.service.DsfSession; |
| import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy; |
| import org.junit.After; |
| import org.junit.Test; |
| |
| public class Concurrent extends BaseLaunchTest { |
| |
| private EDCLaunch launch; |
| private DsfSession session; |
| private boolean testDidShutdown; |
| |
| /** |
| * This test validates that the EDC service threads are given a chance to |
| * complete before the DSF session proceeds with its shutdown. Otherwise, |
| * the logic running on those threads would likely encounter all sorts of |
| * problems as it tries to operate within a session that has been shut down. |
| */ |
| @Test |
| public void testEDCThreadAtShutdown_1() throws Throwable { |
| TestUtils.showDebugPerspective(); |
| launch = createLaunch(); |
| assertNotNull(launch); |
| session = TestUtils.waitForSession(launch); |
| assertNotNull(session); |
| final ExecutionDMC threadDMC = TestUtils.waitForSuspendedThread(session); |
| assertNotNull(threadDMC); |
| TestUtils.waitForStackFrame(session, threadDMC); |
| final INoop service = TestUtils.getService(session, INoop.class); |
| final String semaphore = new String(); |
| final AtomicBoolean successful = new AtomicBoolean(false); |
| final Throwable[] exception = new Throwable[1]; |
| |
| Runnable runnable = new Runnable() { |
| public void run() { |
| try { |
| RequestMonitor rm = new RequestMonitor(service.getExecutor(), null); |
| service.longNoopUsingServiceTracker(3, rm); |
| successful.set(true); |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| } |
| catch (Throwable exc) { |
| synchronized (exception) { |
| exception[0] = exc; |
| } |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| } |
| } |
| }; |
| |
| // Kick off some work on an EDC service thread. Its logic will encounter |
| // an exception if the DSF session shuts down while they're running |
| EDCLaunch.getThreadPool(service.getSession().getId()).execute(runnable); |
| |
| // Tell the DSF session to shut down |
| TestUtils.shutdownDebugSession(launch, session); |
| |
| // Avoid a redundant shutdown by the @After method |
| testDidShutdown = true; |
| |
| // Wait until the EDC service thread either completes or encounters an |
| // exception |
| synchronized (semaphore) { |
| semaphore.wait(8 * 1000); |
| } |
| |
| // If it ran into an exception, fail the test |
| synchronized (exception) { |
| if (exception[0] != null) { |
| throw exception[0]; |
| } |
| } |
| |
| // A sanity check that the thread completed successfully |
| assertTrue(successful.get()); |
| } |
| |
| /** |
| * This test validates that the EDC service threads are given a chance to |
| * complete before the DSF session proceeds with its shutdown. Note the request |
| * monitor should be completed properly. |
| */ |
| @Test |
| public void testEDCThreadAtShutdown_2() throws Throwable { |
| TestUtils.showDebugPerspective(); |
| launch = createLaunch(); |
| assertNotNull(launch); |
| session = TestUtils.waitForSession(launch); |
| assertNotNull(session); |
| final ExecutionDMC threadDMC = TestUtils.waitForSuspendedThread(session); |
| assertNotNull(threadDMC); |
| TestUtils.waitForStackFrame(session, threadDMC); |
| final INoop service = TestUtils.getService(session, INoop.class); |
| final String semaphore = new String(); |
| final AtomicBoolean successful = new AtomicBoolean(false); |
| final Throwable[] exception = new Throwable[1]; |
| |
| Runnable runnable = new Runnable() { |
| public void run() { |
| try { |
| DataRequestMonitor<Boolean> drm = new DataRequestMonitor<Boolean>(service.getExecutor(), null) { |
| @Override |
| protected void handleCompleted() { |
| successful.set(getData()); |
| |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| }}; |
| |
| service.longNoop(3, drm); |
| } |
| catch (Throwable exc) { |
| synchronized (exception) { |
| exception[0] = exc; |
| } |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| } |
| } |
| }; |
| |
| // Kick off some work on an EDC service thread. Its logic will encounter |
| // an exception if the DSF session shuts down while they're running |
| EDCLaunch.getThreadPool(service.getSession().getId()).execute(runnable); |
| |
| // Tell the DSF session to shut down |
| TestUtils.shutdownDebugSession(launch, session); |
| |
| // Avoid a redundant shutdown by the @After method |
| testDidShutdown = true; |
| |
| // Wait until the EDC service thread either completes or encounters an |
| // exception |
| synchronized (semaphore) { |
| semaphore.wait(4 * 1000); |
| } |
| |
| // If it ran into an exception, fail the test |
| synchronized (exception) { |
| if (exception[0] != null) { |
| throw exception[0]; |
| } |
| } |
| |
| // A sanity check that the thread and request monitor completed successfully |
| assertTrue(successful.get()); |
| } |
| |
| /** |
| * This test validates that a non EDC service thread is not given a chance to |
| * complete before the DSF session proceeds with its shutdown. |
| */ |
| @Test |
| public void testNonEDCThreadAtShutdown() throws Throwable { |
| TestUtils.showDebugPerspective(); |
| launch = createLaunch(); |
| assertNotNull(launch); |
| session = TestUtils.waitForSession(launch); |
| assertNotNull(session); |
| final ExecutionDMC threadDMC = TestUtils.waitForSuspendedThread(session); |
| assertNotNull(threadDMC); |
| TestUtils.waitForStackFrame(session, threadDMC); |
| final INoop service = TestUtils.getService(session, INoop.class); |
| final String semaphore = new String(); |
| final AtomicBoolean successful = new AtomicBoolean(false); |
| final Throwable[] exception = new Throwable[1]; |
| |
| final Runnable runnable = new Runnable() { |
| public void run() { |
| try { |
| DataRequestMonitor<Boolean> drm = new DataRequestMonitor<Boolean>(service.getExecutor(), null) { |
| |
| @Override |
| protected void handleRejectedExecutionException() { |
| // Executor is shutting down |
| synchronized (exception) { |
| exception[0] = new Exception("Executor has been shut down."); |
| } |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| } |
| |
| @Override |
| protected void handleCompleted() { |
| successful.set(getData()); |
| |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| }}; |
| |
| service.longNoop(3, drm); |
| } |
| catch (Throwable exc) { |
| synchronized (exception) { |
| exception[0] = exc; |
| } |
| synchronized (semaphore) { |
| semaphore.notify(); |
| } |
| } |
| } |
| }; |
| |
| // Kick off some work in a regular thread (non EDC service thread). Its logic will encounter |
| // an exception if the DSF session shuts down while they're running |
| new Thread(runnable).start(); |
| |
| // Tell the DSF session to shut down |
| TestUtils.shutdownDebugSession(launch, session); |
| |
| // Avoid a redundant shutdown by the @After method |
| testDidShutdown = true; |
| |
| // Wait until the thread either completes or encounters an |
| // exception |
| synchronized (semaphore) { |
| semaphore.wait(4 * 1000); |
| } |
| |
| // it's expected to run into exception |
| synchronized (exception) { |
| assertNotNull(exception[0]); |
| } |
| |
| // the task (request monitor) is not completed successfully |
| assertFalse(successful.get()); |
| } |
| |
| /** |
| * Basic test. See {@link #testStackTraces()} |
| */ |
| @Test |
| public void testStackTraces1() throws Throwable { |
| testStackTraces(); |
| } |
| |
| /** |
| * Variation that uses a thread pool with only one thread. Will be slower, |
| * but should be able to handle the load. |
| */ |
| /** |
| * @throws Throwable |
| */ |
| @Test |
| public void testStackTraces2() throws Throwable { |
| System.setProperty("org.eclipse.cdt.edc.poolthread.coreThreadCount", "1"); |
| testStackTraces(); |
| } |
| |
| /** |
| * Variation that uses a larger thread pool. Should be more effective in |
| * flushing out concurrenc issues since more threads are running the same |
| * code simultaneously |
| */ |
| /** |
| * @throws Throwable |
| */ |
| @Test |
| public void testStackTraces3() throws Throwable { |
| System.setProperty("org.eclipse.cdt.edc.poolthread.coreThreadCount", "10"); |
| testStackTraces(); |
| } |
| |
| /** |
| * Test that an overwhelmed thread pool throws the expected exception. |
| * There's no way three threads can handle 10,000 requests with a maximum |
| * backlog of five requests. |
| */ |
| /** |
| * @throws Throwable |
| */ |
| @Test |
| public void testStackTraces4() throws Throwable { |
| System.setProperty("org.eclipse.cdt.edc.poolthread.queueLimit", "5"); |
| try { |
| testStackTraces(); |
| Assert.fail(); // RejectedExecutionException should have been thrown |
| } |
| catch (RejectedExecutionException exc) {} |
| } |
| |
| /** |
| * @throws Throwable |
| */ |
| public void testStackTraces() throws Throwable { |
| TestUtils.showDebugPerspective(); |
| launch = createLaunch(); |
| assertNotNull(launch); |
| session = TestUtils.waitForSession(launch); |
| assertNotNull(session); |
| final ExecutionDMC threadDMC = TestUtils.waitForSuspendedThread(session); |
| assertNotNull(threadDMC); |
| TestUtils.waitForStackFrame(session, threadDMC); |
| final AtomicInteger completed = new AtomicInteger(); |
| |
| final Stack stackService = TestUtils.getService(session, Stack.class); |
| final int testCount = 10000; |
| |
| final IFrameDMContext[][] referenceStackCrawl = new IFrameDMContext[1][]; |
| final Throwable[] exception = new Throwable[1]; |
| |
| Runnable getFrames = new Runnable() { |
| public void run() { |
| try { |
| // Don't bother if another thread has already encountered an |
| // exception |
| synchronized (exception) { |
| if (exception[0] != null) { |
| return; |
| } |
| } |
| |
| IFrameDMContext[] frames = stackService.getFramesForDMC((ExecutionDMC)threadDMC, 0, IStack.ALL_FRAMES); |
| |
| // The first stack crawl we get is the one we compare all |
| // subsequent ones to |
| synchronized (referenceStackCrawl) { |
| if (referenceStackCrawl[0] == null) { |
| referenceStackCrawl[0] = frames; |
| } |
| } |
| if (frames != referenceStackCrawl[0]) { |
| Assert.assertEquals(referenceStackCrawl[0].length, frames.length); |
| for (int i = 0; i < frames.length; i++) { |
| Assert.assertEquals(frames[i].getLevel(), referenceStackCrawl[0][i].getLevel()); |
| compareStackFrames((StackFrameDMC)frames[i], ((StackFrameDMC)referenceStackCrawl[0][i])); |
| } |
| } |
| if (completed.incrementAndGet() == testCount) { |
| synchronized (completed) { |
| completed.notify(); |
| } |
| } |
| } catch (Throwable e) { |
| synchronized (exception) { |
| if (exception[0] == null) { |
| exception[0] = e; |
| } |
| } |
| synchronized (completed) { |
| completed.notify(); |
| } |
| } |
| } |
| }; |
| |
| for (int i = 0; i < testCount; i++) { |
| EDCLaunch.getThreadPool(stackService.getSession().getId()).execute(getFrames); |
| } |
| |
| synchronized (completed) { |
| completed.wait(30*1000); |
| } |
| |
| // See if the threads encountered an exception. If so, then throw it from this thread (the test thread) so the test fails accordingly |
| synchronized (exception) { |
| if (exception[0] != null) { |
| throw exception[0]; |
| } |
| } |
| |
| Assert.assertEquals(testCount, completed.get()); |
| |
| } |
| |
| /** |
| * Validate two stack frames are equal |
| */ |
| private static void compareStackFrames(StackFrameDMC f1, StackFrameDMC f2) throws Exception { |
| Assert.assertEquals(f1.getFunctionName(), f2.getFunctionName()); |
| Assert.assertEquals(f1.getLineNumber(), f2.getLineNumber()); |
| Assert.assertEquals(f1.getModuleName(), f2.getModuleName()); |
| Assert.assertEquals(f1.getName(), f2.getName()); |
| Assert.assertEquals(f1.getSourceFile(), f2.getSourceFile()); |
| Assert.assertEquals(f1.getBaseAddress(), f2.getBaseAddress()); |
| Assert.assertEquals(f1.getCalledFrame(), f2.getCalledFrame()); |
| } |
| |
| |
| @After |
| public void shutdown() { |
| if (!testDidShutdown) { |
| TestUtils.shutdownDebugSession(launch, session); |
| } |
| } |
| |
| @Override |
| protected void configureLaunchConfiguration( |
| ILaunchConfigurationWorkingCopy configuration) { |
| |
| // Make sure it stop at main |
| configuration.setAttribute(ICDTLaunchConfigurationConstants.ATTR_DEBUGGER_STOP_AT_MAIN, true); |
| configuration.setAttribute(ICDTLaunchConfigurationConstants.ATTR_DEBUGGER_STOP_AT_MAIN_SYMBOL, "main"); |
| } |
| |
| } |