mirrors/cdt
1
0
Fork 0
mirror of https://github.com/eclipse-cdt/cdt synced 2025-07-01 06:05:24 +02:00
Code Issues Wiki Activity

Bug 312552 Use ILock rather than scheduling rule for mutual exclusion. Scheduling rules require knowing in advance all scheduling rules clients require.

Browse source
This commit is contained in:
James Blackburn 2010-05-12 09:28:03 +00:00
parent 18f0684dd3
commit 7b265afa4e
1 changed files with 14 additions and 42 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

56
build/org.eclipse.cdt.managedbuilder.core/src/org/eclipse/cdt/build/internal/core/scannerconfig/CfgDiscoveredPathManager.java
View file

@ -60,7 +60,8 @@ import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.jobs.ISchedulingRule;
import org.eclipse.core.runtime.jobs.ILock;
import org.eclipse.core.runtime.jobs.Job;
public class CfgDiscoveredPathManager implements IResourceChangeListener {
@ -69,38 +70,8 @@ public class CfgDiscoveredPathManager implements IResourceChangeListener {
private IDiscoveredPathManager fBaseMngr;
private class GetDiscoveredInfoRunnable implements IWorkspaceRunnable {
private PathInfo fPathInfo;
private ContextInfo fContextInfo;
private IProject fProject;
private CfgInfoContext fContext;
public GetDiscoveredInfoRunnable(ContextInfo cInfo, IProject project, CfgInfoContext context) {
fContextInfo = cInfo;
fProject = project;
fContext = context;
}
public void run(IProgressMonitor monitor) throws CoreException {
fPathInfo = getCachedPathInfo(fContextInfo);
if(fPathInfo == null){
IDiscoveredPathManager.IDiscoveredPathInfo baseInfo = loadPathInfo(fProject, fContext.getConfiguration(), fContextInfo);
fPathInfo = resolveCacheBaseDiscoveredInfo(fContextInfo, baseInfo);
}
}
public PathInfo getPathInfo() {
return fPathInfo;
}
};
/** Deadlock-safe mutex lock */
private ILock lock = Job.getJobManager().newLock();
private static class ContextInfo {
@ -196,16 +167,17 @@ public class CfgDiscoveredPathManager implements IResourceChangeListener {
PathInfo info = getCachedPathInfo(cInfo);
if (info == null) {
// Change synchronization to be a lock on the project, otherwise
// if the project description is queried from a project change listener, it will deadlock
GetDiscoveredInfoRunnable runnable = new GetDiscoveredInfoRunnable(cInfo, project, context);
ISchedulingRule rule = project;
ResourcesPlugin.getWorkspace().run(runnable, rule, IWorkspace.AVOID_UPDATE, null);
info = runnable.getPathInfo();
try {
lock.acquire();
info = getCachedPathInfo(cInfo);
if(info == null){
IDiscoveredPathManager.IDiscoveredPathInfo baseInfo = loadPathInfo(project, context.getConfiguration(), cInfo);
info = resolveCacheBaseDiscoveredInfo(cInfo, baseInfo);
}
} finally {
lock.release();
}
}
return info;
}