| /********************************************************************** |
| * Copyright (c) 2004 Jeremiah Lott 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: |
| * Jeremiah Lott (jeremiah.lott@timesys.com) - Initial implementation |
| * IBM Added comments, removed printlns, and incorporated into platform test suites |
| **********************************************************************/ |
| package org.eclipse.ui.tests.concurrency; |
| |
| import junit.framework.TestCase; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IResourceChangeEvent; |
| import org.eclipse.core.resources.IResourceChangeListener; |
| import org.eclipse.core.resources.IWorkspace; |
| import org.eclipse.core.resources.IWorkspaceRunnable; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jface.dialogs.ProgressMonitorDialog; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.actions.WorkspaceModifyOperation; |
| |
| /** |
| * This is a regression test for a case where a recursive attempt to syncExec |
| * from within code that owns a lock would cause deadlock. See bug 76378 for details. |
| */ |
| public class NestedSyncExecDeadlockTest extends TestCase { |
| |
| private class ResourceListener implements IResourceChangeListener { |
| public void resourceChanged(IResourceChangeEvent event) { |
| Display.getDefault().syncExec(new Runnable() { |
| public void run() { |
| } |
| }); |
| } |
| } |
| |
| private IResourceChangeListener listener; |
| private IProject project; |
| |
| private IWorkspace workspace = ResourcesPlugin.getWorkspace(); |
| |
| public NestedSyncExecDeadlockTest() { |
| super(); |
| } |
| |
| public NestedSyncExecDeadlockTest(String name) { |
| super(name); |
| } |
| |
| public void doTest(final long timeToSleep) throws Exception { |
| ProgressMonitorDialog dialog = new ProgressMonitorDialog(new Shell()); |
| dialog.run(true, false, new WorkspaceModifyOperation() { |
| public void execute(final IProgressMonitor pm) { |
| Display.getDefault().syncExec(new Runnable() { |
| public void run() { |
| try { |
| workspace.run(new IWorkspaceRunnable() { |
| public void run(IProgressMonitor mon) throws CoreException { |
| project.touch(null); |
| try { |
| // wait long enough to be sure to trigger notification |
| Thread.sleep(timeToSleep); |
| } catch (InterruptedException ex) { |
| ex.printStackTrace(); |
| } |
| } |
| }, workspace.getRoot(), IResource.NONE, pm); |
| workspace.run(new IWorkspaceRunnable() { |
| public void run(IProgressMonitor mon) { |
| } |
| }, pm); |
| |
| } catch (CoreException ex) { |
| ex.printStackTrace(); |
| } |
| } |
| }); |
| } |
| }); |
| } |
| |
| protected void setUp() throws Exception { |
| project = workspace.getRoot().getProject("test-deadlock"); |
| |
| tearDown(); |
| |
| project.create(null); |
| project.open(null); |
| |
| listener = new ResourceListener(); |
| workspace.addResourceChangeListener(listener, IResourceChangeEvent.POST_CHANGE); |
| } |
| |
| protected void tearDown() throws Exception { |
| if (listener != null) { |
| workspace.removeResourceChangeListener(listener); |
| } |
| project.delete(true, true, null); |
| } |
| |
| public void testDeadlock() throws Exception { |
| doTest(1000 * 30); // 30 secs almost always locks |
| } |
| |
| public void testOK() throws Exception { |
| doTest(0); // 0 rarely locks |
| } |
| } |