| /******************************************************************************* |
| * Copyright (c) 2004, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.debug.ui.monitors; |
| |
| import org.eclipse.core.runtime.PlatformObject; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.ILaunchConfiguration; |
| import org.eclipse.debug.core.model.IDebugElement; |
| import org.eclipse.debug.core.model.IDebugTarget; |
| import org.eclipse.debug.core.model.ISuspendResume; |
| import org.eclipse.debug.core.model.ITerminate; |
| import org.eclipse.debug.core.model.IThread; |
| |
| /** |
| * Object used to display contended monitor in the debug launch view. |
| * In this case, the monitor is owned by the owning thread, and waited |
| * by the parent thread. |
| */ |
| public class JavaContendedMonitor extends PlatformObject implements IDebugElement, ITerminate, ISuspendResume { |
| |
| /** |
| * The monitor object in the threads and monitors model. |
| */ |
| private JavaMonitor fMonitor; |
| /** |
| * The thread which owns this monitor. |
| */ |
| private JavaOwningThread fOwningThread; |
| /** |
| * The parent, in the debug view tree. |
| */ |
| private JavaOwningThread fParent; |
| |
| /** |
| * Constructor |
| * @param monitor |
| * @param parent |
| */ |
| public JavaContendedMonitor(JavaMonitor monitor, JavaOwningThread parent) { |
| fMonitor= monitor; |
| monitor.addElement(this); |
| fParent= parent; |
| } |
| |
| /** |
| * returns the monitor that is in contention |
| * @return the monitor that is in contention |
| */ |
| public JavaMonitor getMonitor() { |
| return fMonitor; |
| } |
| |
| /** |
| * Returns the parent <code>JavaOwningThread</code> or the original <code>IThread</code> |
| * @return the parent <code>JavaOwningThread</code> or the original <code>IThread</code> |
| */ |
| public Object getParent() { |
| if (fParent.getParent() == null) { |
| return fParent.getThread().getOriginalThread(); |
| } |
| return fParent; |
| } |
| |
| /** |
| * returns the <code>JavaOwningThread</code> that owns this monitor |
| * @return the <code>JavaOwningThread</code> that owns this monitor |
| */ |
| public JavaOwningThread getOwningThread() { |
| JavaMonitorThread owningThread= fMonitor.getOwningThread0(); |
| if (owningThread == null) { |
| fOwningThread= null; |
| } else if (fOwningThread == null || fOwningThread.getThread() != owningThread) { |
| // create a new object only if thread from the model changed |
| fOwningThread= new JavaOwningThread(owningThread, this); |
| } |
| return fOwningThread; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IDebugElement#getModelIdentifier() |
| */ |
| @Override |
| public String getModelIdentifier() { |
| return fMonitor.getModelIdentifier(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IDebugElement#getDebugTarget() |
| */ |
| @Override |
| public IDebugTarget getDebugTarget() { |
| return fMonitor.getDebugTarget(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.core.model.IDebugElement#getLaunch() |
| */ |
| @Override |
| public ILaunch getLaunch() { |
| return fMonitor.getLaunch(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.runtime.PlatformObject#getAdapter(java.lang.Class) |
| */ |
| @SuppressWarnings("unchecked") |
| @Override |
| public <T> T getAdapter(Class<T> adapter) { |
| if(adapter == IDebugTarget.class) { |
| return (T) getDebugTarget(); |
| } |
| //CONTEXTLAUNCHING |
| if(adapter.equals(ILaunchConfiguration.class)) { |
| return (T) getLaunch().getLaunchConfiguration(); |
| } |
| return super.getAdapter(adapter); |
| } |
| |
| /** |
| * returns the parent thread of this monitor |
| * @return the parent <code>IThread</code> that owns this monitor |
| */ |
| protected IThread getParentThread() { |
| Object parent = getParent(); |
| IThread thread = null; |
| if(parent instanceof IThread) { |
| thread = (IThread) parent; |
| } |
| else if(parent instanceof JavaOwningThread) { |
| thread = ((JavaOwningThread)parent).getThread().getOriginalThread(); |
| } |
| return thread; |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ITerminate#canTerminate() |
| */ |
| @Override |
| public boolean canTerminate() { |
| return getDebugTarget().canTerminate(); |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ITerminate#isTerminated() |
| */ |
| @Override |
| public boolean isTerminated() { |
| return getDebugTarget().isTerminated(); |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ITerminate#terminate() |
| */ |
| @Override |
| public void terminate() throws DebugException { |
| getDebugTarget().terminate(); |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ISuspendResume#canResume() |
| */ |
| @Override |
| public boolean canResume() { |
| JavaOwningThread owningThread = getOwningThread(); |
| if(owningThread != null) { |
| IThread originalThread = owningThread.getThread().getOriginalThread(); |
| if (originalThread != null) { |
| return originalThread.canResume(); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ISuspendResume#canSuspend() |
| */ |
| @Override |
| public boolean canSuspend() { |
| return false; |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ISuspendResume#isSuspended() |
| */ |
| @Override |
| public boolean isSuspended() { |
| JavaOwningThread owningThread = getOwningThread(); |
| if(owningThread != null) { |
| IThread originalThread = owningThread.getThread().getOriginalThread(); |
| if (originalThread != null) { |
| return originalThread.isSuspended(); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ISuspendResume#resume() |
| */ |
| @Override |
| public void resume() throws DebugException { |
| getOwningThread().getThread().getOriginalThread().resume(); |
| } |
| |
| /** |
| * @see org.eclipse.debug.core.model.ISuspendResume#suspend() |
| */ |
| @Override |
| public void suspend() throws DebugException { |
| getOwningThread().getThread().getOriginalThread().suspend(); |
| } |
| } |