/*******************************************************************************
* Copyright (c) 2005, 2014 QNX Software Systems
* 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:
* Doug Schaefer (QNX Software Systems) - initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.pdom;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.dom.IPDOMIndexer;
import org.eclipse.cdt.core.dom.IPDOMIndexerTask;
import org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
/**
* Job running multiple indexer tasks.
*/
public class PDOMIndexerJob extends Job {
/**
* Job updating the progress monitor of the indexer job.
*/
final class ProgressUpdateJob extends Job {
private boolean fCancelled;
private ProgressUpdateJob() {
super(CCorePlugin.getResourceString("PDOMIndexerJob.updateMonitorJob")); //$NON-NLS-1$
setSystem(true);
}
@Override
protected IStatus run(IProgressMonitor m) {
int currentTick= 0;
while (!fCancelled && !m.isCanceled()) {
currentTick= pdomManager.getMonitorMessage(PDOMIndexerJob.this, currentTick, TOTAL_MONITOR_WORK);
try {
synchronized(this) {
if (fCancelled)
break;
wait(PROGRESS_UPDATE_INTERVAL);
}
} catch (InterruptedException e) {
return Status.CANCEL_STATUS;
}
}
return Status.OK_STATUS;
}
@Override
protected void canceling() {
// Speed up cancellation by notifying the waiting thread.
synchronized (this) {
fCancelled= true;
notify();
}
synchronized (taskMutex) {
if (currentTask != null)
currentTask.cancel();
}
}
}
private static final int PROGRESS_UPDATE_INTERVAL = 500;
private static final int TOTAL_MONITOR_WORK = 1000;
static volatile String sMonitorDetail= null;
private final PDOMManager pdomManager;
private IPDOMIndexerTask currentTask;
private boolean cancelledByManager= false;
private final Object taskMutex = new Object();
private IProgressMonitor fMonitor;
private final boolean fShowActivity;
public PDOMIndexerJob(PDOMManager manager) {
super(CCorePlugin.getResourceString("pdom.indexer.name")); //$NON-NLS-1$
this.pdomManager = manager;
fShowActivity= PDOMIndexerTask.checkDebugOption(IPDOMIndexerTask.TRACE_ACTIVITY, "true"); //$NON-NLS-1$
setPriority(Job.LONG);
}
public synchronized void subTask(String msg) {
if (fMonitor != null) {
fMonitor.subTask(msg);
}
}
public synchronized void worked(int i) {
if (fMonitor != null) {
fMonitor.worked(i);
}
}
@Override
protected IStatus run(IProgressMonitor monitor) {
fMonitor = monitor;
String taskName = CCorePlugin.getResourceString("pdom.indexer.task"); //$NON-NLS-1$
monitor.beginTask(taskName, TOTAL_MONITOR_WORK);
ProgressUpdateJob monitorJob= new ProgressUpdateJob();
monitorJob.schedule();
try {
IProgressMonitor npm= new NullProgressMonitor() {
@Override
public boolean isCanceled() {
synchronized (PDOMIndexerJob.this) {
return fMonitor == null || fMonitor.isCanceled();
}
}
@Override
public void setCanceled(boolean cancelled) {
synchronized (PDOMIndexerJob.this) {
if (fMonitor != null) {
fMonitor.setCanceled(cancelled);
}
}
}
@Override
public void subTask(String name) {
sMonitorDetail= name;
}
};
do {
synchronized (taskMutex) {
currentTask= null;
taskMutex.notifyAll();
// User cancel, tell manager and return.
if (monitor.isCanceled()) {
pdomManager.indexerJobCanceled(cancelledByManager);
return Status.CANCEL_STATUS;
}
// Pick up new task.
currentTask= pdomManager.getNextTask();
}
if (currentTask != null) {
try {
String name= null;
long time= 0;
if (fShowActivity) {
name= getClassName(currentTask);
time= -System.currentTimeMillis();
System.out.println("Indexer: start " + name); //$NON-NLS-1$
}
currentTask.run(npm);
if (fShowActivity) {
time += System.currentTimeMillis();
System.out.println("Indexer: completed " + name + "[" + time + "ms]"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
} while (currentTask != null);
return Status.OK_STATUS;
} catch (OperationCanceledException e) {
indexingAborted();
throw e;
} catch (RuntimeException | Error e) {
CCorePlugin.log(e);
indexingAborted();
throw e;
} finally {
synchronized (this) {
fMonitor= null;
}
monitorJob.cancel();
}
}
private void indexingAborted() {
pdomManager.indexerJobCanceled(true);
synchronized (taskMutex) {
currentTask= null;
taskMutex.notifyAll();
}
}
private String getClassName(Object obj) {
String name= obj.getClass().getName();
name= name.substring(name.lastIndexOf('.') + 1);
return name;
}
public void cancelJobs(IPDOMIndexer indexer, boolean waitUntilCancelled) {
synchronized (taskMutex) {
if (currentTask != null && (indexer == null || currentTask.getIndexer() == indexer)) {
synchronized (this) {
if (fMonitor != null) {
fMonitor.setCanceled(true);
}
}
cancelledByManager = true;
if (waitUntilCancelled) {
while (currentTask != null && currentTask.getIndexer() == indexer) {
try {
taskMutex.wait();
} catch (InterruptedException e) {
return;
}
}
}
}
}
}
@Override
public boolean belongsTo(Object family) {
return family == pdomManager;
}
}