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Re: [cdt-dev] Dependency checking
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This is an example of deadlock I got starting eclipse:
FIRST THREAD: Thread [main] (Suspended)
IndexManager(JobManager).performConcurrentJob(IJob, int, IProgressMonitor)
line: 258
DeltaProcessor.updateDependencies(ICElement) line: 521
DeltaProcessor.updateCurrentDeltaAndIndex(IResourceDelta) line: 433
DeltaProcessor.traverseDelta(ICElement, IResourceDelta) line: 370
DeltaProcessor.traverseDelta(ICElement, IResourceDelta) line: 380
DeltaProcessor.traverseDelta(ICElement, IResourceDelta) line: 380
DeltaProcessor.processResourceDelta(IResourceDelta) line: 353
CModelManager.resourceChanged(IResourceChangeEvent) line: 574
NotificationManager$1.run() line: 137
InternalPlatform.run(ISafeRunnable) line: 1006
Platform.run(ISafeRunnable) line: 413
NotificationManager.notify(ResourceChangeListenerList$ListenerEntry[],
IResourceChangeEvent, boolean) line: 152
NotificationManager.broadcastChanges(ElementTree, int, boolean, boolean)
line: 67
Workspace.broadcastChanges(ElementTree, int, boolean, boolean,
IProgressMonitor) line: 161
Workspace.endOperation(boolean, IProgressMonitor) line: 892
File(Resource).refreshLocal(int, IProgressMonitor) line: 1156
CDocumentProvider(FileDocumentProvider).refreshFile(IFile) line: 711
CDocumentProvider.createElementInfo(Object) line: 202
CDocumentProvider(AbstractDocumentProvider).connect(Object) line: 306
CEditor(AbstractTextEditor).doSetInput(IEditorInput) line: 2393
CEditor(StatusTextEditor).doSetInput(IEditorInput) line: 162
CEditor(TextEditor).doSetInput(IEditorInput) line: 476
CEditor.doSetInput(IEditorInput) line: 172
AbstractTextEditor$8.run(IProgressMonitor) line: 1882
ModalContext.runInCurrentThread(IRunnableWithProgress, IProgressMonitor)
line: 302
ModalContext.run(IRunnableWithProgress, boolean, IProgressMonitor, Display)
line: 252
ApplicationWindow$1.run() line: 431
BusyIndicator.showWhile(Display, Runnable) line: 69
WorkbenchWindow(ApplicationWindow).run(boolean, boolean,
IRunnableWithProgress) line: 428
WorkbenchWindow.run(boolean, boolean, IRunnableWithProgress) line: 1385
CEditor(AbstractTextEditor).internalInit(IWorkbenchWindow, IEditorSite,
IEditorInput) line: 1897
CEditor(AbstractTextEditor).init(IEditorSite, IEditorInput) line: 1914
EditorManager.createSite(IEditorPart, EditorDescriptor, IEditorInput) line:
604
EditorManager.openInternalEditor(IEditorReference, EditorDescriptor,
IEditorInput, boolean) line: 666
EditorManager.access$7(EditorManager, IEditorReference, EditorDescriptor,
IEditorInput, boolean) line: 655
EditorManager$7.run() line: 919
InternalPlatform.run(ISafeRunnable) line: 1006
Platform.run(ISafeRunnable) line: 413
EditorManager.busyRestoreEditor(EditorManager$Editor, IMemento) line: 864
EditorManager$6.run() line: 857
BusyIndicator.showWhile(Display, Runnable) line: 69
EditorManager.restoreEditor(EditorManager$Editor, IMemento) line: 853
EditorManager.restoreState(IMemento) line: 756
WorkbenchPage.restoreState(IMemento, IPerspectiveDescriptor) line: 2263
WorkbenchWindow.restoreState(IMemento, IPerspectiveDescriptor) line: 1327
Workbench.restoreState(IMemento) line: 1263
Workbench.access$10(Workbench, IMemento) line: 1223
Workbench$12.run() line: 1141
InternalPlatform.run(ISafeRunnable) line: 1006
Platform.run(ISafeRunnable) line: 413
Workbench.openPreviousWorkbenchState() line: 1093
Workbench.init(String[]) line: 870
Workbench.run(Object) line: 1373
InternalBootLoader.run(String, URL, String, String[], Runnable) line: 858
BootLoader.run(String, URL, String, String[], Runnable) line: 461
NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not
available [native method]
NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39 [local variables
unavailable]
DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 [local
variables unavailable]
Method.invoke(Object, Object[]) line: 324 [local variables unavailable]
Main.basicRun(String[]) line: 291
Main.run(String[]) line: 747
Main.main(String[]) line: 583
SECOND THREAD: Thread [CDT Indexer] (Suspended)
Object.wait(long) line: not available [native method]
Semaphore(Object).wait() line: 429 [local variables unavailable]
Semaphore.acquire() line: 24
UIWorkspaceLock(WorkspaceLock).acquire() line: 49
UIWorkspaceLock.acquire() line: 46
WorkManager.checkIn() line: 79
Workspace.prepareOperation() line: 1558
File(Resource).refreshLocal(int, IProgressMonitor) line: 1147
FileDocumentProvider.refreshFile(IFile) line: 711
FileDocumentProvider.createElementInfo(Object) line: 518
FileDocumentProvider(AbstractDocumentProvider).connect(Object) line: 306
MakeDocumentModel(QDEDocumentModel).<init>(IFileEditorInput) line: 42
MakeDocumentModel.<init>(IFileEditorInput) line: 19
MakeDocumentModel.<init>(IFile) line: 15
MakeQNXCommonFile.open(IFile) line: 40
MakeInfo.load(IFile) line: 751
MakeInfo.init() line: 918
MakeInfo.<init>(IProject) line: 92
MakeInfoAdapterFactory.getAdapter(Object, Class) line: 39
AdapterManager.getAdapter(Object, Class) line: 123
QdeProjectInfo.<init>(IProject, BuildConfig) line: 74
QdeCorePlugin.getProjectInfo(IProject) line: 158
QDEMakeScannerProvider.getScannerInformation(IResource) line: 64
SourceIndexer.indexFile(IDocument) line: 78
SourceIndexer(AbstractIndexer).index(IDocument, IIndexerOutput) line: 353
Index.add(IDocument, IIndexer) line: 110
AddCompilationUnitToIndex.indexDocument(IIndex) line: 30
AddCompilationUnitToIndex(AddFileToIndex).execute(IProgressMonitor) line:
39
IndexManager(JobManager).run() line: 368
Thread.run() line: 534 [local variables unavailable]
First thread locked workspace while refreshing file, then sent resource
change event and synchronously started IndexManajer.performConcurrentJob for
the Indexer. Idexer is running in another thread and implicitly trying to
lock workspace during executing of
FileDocumentProvider.connect(FileEditorInput) operation.
Another example: running Indexer after invoking Search C/C++ dialog.
FIRST THREAD: Thread [ModalContext] (Suspended)
Thread.sleep(long) line: not available [native method]
IndexManager(JobManager).performConcurrentJob(IJob, int, IProgressMonitor)
line: 269
SearchEngine.search(IWorkspace, ICSearchPattern, ICSearchScope,
ICSearchResultCollector, boolean) line: 143
CSearchOperation.execute(IProgressMonitor) line: 81
WorkspaceModifyOperation$1.run(IProgressMonitor) line: 71
Workspace.run(IWorkspaceRunnable, IProgressMonitor) line: 1595
CSearchOperation(WorkspaceModifyOperation).run(IProgressMonitor) line: 85
ModalContext$ModalContextThread.run() line: 101
Workspace.run is an atomic operation and implicitly locks workspace
SECOND THREAD: Thread [CDT Indexer] (Suspended)
Object.wait(long) line: not available [native method]
Semaphore(Object).wait() line: 429
Semaphore.acquire() line: 24
UIWorkspaceLock(WorkspaceLock).acquire() line: 49
UIWorkspaceLock.acquire() line: 46
WorkManager.checkIn() line: 79
Workspace.prepareOperation() line: 1558
File(Resource).refreshLocal(int, IProgressMonitor) line: 1147
FileDocumentProvider.refreshFile(IFile) line: 711
FileDocumentProvider.createElementInfo(Object) line: 518
FileDocumentProvider(AbstractDocumentProvider).connect(Object) line: 306
MakeDocumentModel(QDEDocumentModel).<init>(IFileEditorInput) line: 42
MakeDocumentModel.<init>(IFileEditorInput) line: 19
MakeDocumentModel.<init>(IFile) line: 15
MakeQNXCommonFile.open(IFile) line: 40
MakeInfo.load(IFile) line: 751
MakeInfo.init() line: 918
MakeInfo.<init>(IProject) line: 92
MakeInfoAdapterFactory.getAdapter(Object, Class) line: 39
AdapterManager.getAdapter(Object, Class) line: 123
QdeProjectInfo.<init>(IProject, BuildConfig) line: 74
QdeCorePlugin.getProjectInfo(IProject) line: 158
QDEMakeScannerProvider.getScannerInformation(IResource) line: 64
SourceIndexer.indexFile(IDocument) line: 78
SourceIndexer(AbstractIndexer).index(IDocument, IIndexerOutput) line: 353
Index.add(IDocument, IIndexer) line: 110
AddCompilationUnitToIndex.indexDocument(IIndex) line: 30
AddCompilationUnitToIndex(AddFileToIndex).execute(IProgressMonitor) line:
39
IndexManager(JobManager).run() line: 368
Thread.run() line: 534
I have the same sort of deadlock, just one of participants is different. Of
course I can try to devise something to avoid FileDocumentProvider.connect
(this stupid guy implicitly tries to lock workspace), but it doesn't seem to
me very reasonable: indexer shouldn't be dependable from any
workspace-update operation.
