Mike Kaganski
3dc55faf9b
A deadlock seen with the following call stacks. Main thread is trying to paint in a timer event, and is waiting for the FormComponentPropertyHandler's mutex: ntdll.dll!NtWaitForAlertByThreadId() ntdll.dll!RtlpWaitOnCriticalSection() ntdll.dll!RtlpEnterCriticalSectionContended() ntdll.dll!RtlEnterCriticalSection() sal3.dll!osl_acquireMutex(_oslMutexImpl * Mutex) Line 65 pcrlo.dll!osl::Mutex::acquire() Line 63 pcrlo.dll!osl::Guard<osl::Mutex>::Guard<osl::Mutex>(osl::Mutex & t) Line 144 • pcrlo.dll!pcr::FormComponentPropertyHandler::getPropertyValue(const rtl::OUString & _rPropertyName) Line 307 pcrlo.dll!pcr::OPropertyBrowserController::impl_getPropertyValue_throw(const rtl::OUString & _rPropertyName) Line 907 pcrlo.dll!pcr::OPropertyBrowserController::propertyChange(const com::sun::star::beans::PropertyChangeEvent & _rEvent) Line 661 cppuhelper3MSC.dll!cppu::OPropertySetHelper::fire(long * pnHandles, const com::sun::star::uno::Any * pNewValues, const com::sun::star::uno::Any * pOldValues, long nHandles, unsigned char bVetoable) Line 733 comphelper.dll!comphelper::OPropertySetAggregationHelper::propertiesChange(const com::sun::star::uno::Sequence<com::sun::star::beans::PropertyChangeEvent> & _rEvents) Line 420 cppuhelper3MSC.dll!cppu::OPropertySetHelper::firePropertiesChangeEvent(const com::sun::star::uno::Sequence<rtl::OUString> & rPropertyNames, const com::sun::star::uno::Reference<com::sun::star::beans::XPropertiesChangeListener> & rListener) Line 961 tklo.dll!ControlContainerBase::ImplUpdateResourceResolver() Line 1698 tklo.dll!ControlContainerBase::ImplStartListingForResourceEvents() Line 1675 tklo.dll!ControlContainerBase::setModel(const com::sun::star::uno::Reference<com::sun::star::awt::XControlModel> & rxModel) Line 1428 tklo.dll!UnoDialogControl::setModel(const com::sun::star::uno::Reference<com::sun::star::awt::XControlModel> & rxModel) Line 348 svxcorelo.dll!sdr::contact::`anonymous namespace'::ControlHolder::setModel(const com::sun::star::uno::Reference<com::sun::star::awt::XControlModel> & _m) Line 186 svxcorelo.dll!sdr::contact::ViewObjectContactOfUnoControl_Impl::createControlForDevice(const sdr::contact::`anonymous-namespace'::IPageViewAccess & _rPageView, const OutputDevice & _rDevice, const SdrUnoObj & _rUnoObject, const basegfx::B2DHomMatrix & _rInitialViewTransformation, const basegfx::B2DHomMatrix & _rInitialZoomNormalization, sdr::contact::`anonymous-namespace'::ControlHolder & _out_rControl) Line 1097 svxcorelo.dll!sdr::contact::ViewObjectContactOfUnoControl_Impl::impl_ensureControl_nothrow(const sdr::contact::`anonymous-namespace'::IPageViewAccess & _rPageView, const OutputDevice & _rDevice, const basegfx::B2DHomMatrix & _rInitialViewTransformation) Line 1037 svxcorelo.dll!sdr::contact::ViewObjectContactOfUnoControl_Impl::ensureControl(const basegfx::B2DHomMatrix * _pInitialViewTransformationOrNULL) Line 963 svxcorelo.dll!sdr::contact::`anonymous namespace'::LazyControlCreationPrimitive2D::create2DDecomposition(const drawinglayer::geometry::ViewInformation2D & _rViewInformation) Line 1539 drawinglayercorelo.dll!drawinglayer::primitive2d::BufferedDecompositionPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor & rVisitor, const drawinglayer::geometry::ViewInformation2D & rViewInformation) Line 79 svxcorelo.dll!sdr::contact::`anonymous namespace'::LazyControlCreationPrimitive2D::get2DDecomposition(drawinglayer::primitive2d::Primitive2DDecompositionVisitor & rVisitor, const drawinglayer::geometry::ViewInformation2D & _rViewInformation) Line 1523 drawinglayerlo.dll!drawinglayer::processor2d::BaseProcessor2D::process(const drawinglayer::primitive2d::BasePrimitive2D & rCandidate) Line 43 drawinglayerlo.dll!drawinglayer::processor2d::VclPixelProcessor2D::processBasePrimitive2D(const drawinglayer::primitive2d::BasePrimitive2D & rCandidate) Line 374 drawinglayerlo.dll!drawinglayer::processor2d::BaseProcessor2D::process(const drawinglayer::primitive2d::Primitive2DContainer & rSource) Line 67 svxcorelo.dll!sdr::contact::ObjectContactOfPageView::DoProcessDisplay(sdr::contact::DisplayInfo & rDisplayInfo) Line 303 svxcorelo.dll!sdr::contact::ObjectContactOfPageView::ProcessDisplay(sdr::contact::DisplayInfo & rDisplayInfo) Line 128 svxcorelo.dll!SdrPageWindow::RedrawLayer(const o3tl::strong_int<short,SdrLayerIDTag> * pId, sdr::contact::ViewObjectContactRedirector * pRedirector, const basegfx::B2IRange * pPageFrame) Line 422 svxcorelo.dll!SdrPageView::DrawLayer(o3tl::strong_int<short,SdrLayerIDTag> nID, OutputDevice * pGivenTarget, sdr::contact::ViewObjectContactRedirector * pRedirector, const tools::Rectangle & rRect, const basegfx::B2IRange * pPageFrame) Line 304 svxcorelo.dll!SdrPaintView::ImpFormLayerDrawing(SdrPaintWindow & rPaintWindow, sdr::contact::ViewObjectContactRedirector * pRedirector) Line 798 svxcorelo.dll!SdrPaintView::EndCompleteRedraw(SdrPaintWindow & rPaintWindow, bool bPaintFormLayer, sdr::contact::ViewObjectContactRedirector * pRedirector) Line 653 svxcorelo.dll!SdrPaintView::EndDrawLayers(SdrPaintWindow & rPaintWindow, bool bPaintFormLayer, sdr::contact::ViewObjectContactRedirector * pRedirector) Line 726 basctllo.dll!basctl::DlgEditor::Paint(OutputDevice & rRenderContext, const tools::Rectangle & rRect) Line 547 basctllo.dll!basctl::DialogWindow::Paint(OutputDevice & rRenderContext, const tools::Rectangle & rRect) Line 124 vcllo.dll!PaintHelper::DoPaint(const vcl::Region * pRegion) Line 316 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 618 vcllo.dll!PaintHelper::~PaintHelper() Line 553 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 624 vcllo.dll!PaintHelper::~PaintHelper() Line 553 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 624 vcllo.dll!PaintHelper::~PaintHelper() Line 553 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 624 vcllo.dll!PaintHelper::~PaintHelper() Line 553 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 624 vcllo.dll!PaintHelper::~PaintHelper() Line 553 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 624 vcllo.dll!PaintHelper::~PaintHelper() Line 553 vcllo.dll!vcl::Window::ImplCallPaint(const vcl::Region * pRegion, ImplPaintFlags nPaintFlags) Line 624 vcllo.dll!vcl::Window::ImplCallOverlapPaint() Line 645 vcllo.dll!vcl::Window::ImplHandlePaintHdl(Timer * __formal) Line 668 vcllo.dll!vcl::Window::LinkStubImplHandlePaintHdl(void * instance, Timer * data) Line 649 vcllo.dll!Link<Timer *,void>::Call(Timer * data) Line 105 vcllo.dll!Timer::Invoke() Line 75 vcllo.dll!Scheduler::CallbackTaskScheduling() Line 615 vcllo.dll!SalTimer::CallCallback() Line 53 vclplug_winlo.dll!WinSalTimer::ImplHandleElapsedTimer() Line 169 vclplug_winlo.dll!ImplSalYield(bool bWait, bool bHandleAllCurrentEvents) Line 443 vclplug_winlo.dll!WinSalInstance::DoYield(bool bWait, bool bHandleAllCurrentEvents) Line 499 vcllo.dll!InnerYield(bool i_bWait, bool i_bAllEvents) Line 389 vcllo.dll!Application::Yield() Line 502 vcllo.dll!Application::Execute() Line 365 sofficeapp.dll!desktop::Desktop::Main() Line 1681 vcllo.dll!ImplSVMain() Line 230 vcllo.dll!SVMain() Line 249 sofficeapp.dll!soffice_main() Line 122 soffice.bin!sal_main() Line 51 soffice.bin!main(int argc, char * * argv) Line 49 soffice.bin!invoke_main() Line 79 soffice.bin!__scrt_common_main_seh() Line 288 soffice.bin!__scrt_common_main() Line 331 soffice.bin!mainCRTStartup(void * __formal) Line 17 kernel32.dll!BaseThreadInitThunk() ntdll.dll!RtlUserThreadStart() while the worker thread is holding the mutex and is sending a message to the main thread synchronously: win32u.dll!NtUserMessageCall() user32.dll!SendMessageWorker() user32.dll!SendMessageInternal(struct HWND__ *,unsigned int,unsigned __int64,__int64,int) user32.dll!SendMessageW() vclplug_winlo.dll!WinSalInstance::SendWndMessage_impl(HWND__ * hWnd, unsigned int Msg, unsigned __int64 wParam, __int64 lParam) Line 689 vclplug_winlo.dll!WinSalInstance::SendComWndMessage(unsigned int Msg, unsigned __int64 wParam, __int64 lParam) Line 700 vclplug_winlo.dll!WinSalFrame::ReleaseGraphics(SalGraphics * pGraphics) Line 1052 vcllo.dll!vcl::WindowOutputDevice::ReleaseGraphics(bool bRelease) Line 905 vcllo.dll!vcl::Window::dispose() Line 487 vcllo.dll!ImplBorderWindow::dispose() Line 1614 vcllo.dll!VclReferenceBase::disposeOnce() Line 38 vcllo.dll!VclPtr<ImplBorderWindow>::disposeAndClear() Line 224 vcllo.dll!ScopedVclPtr<ImplBorderWindow>::~ScopedVclPtr<ImplBorderWindow>() Line 351 vcllo.dll!ScopedVclPtrInstance<ImplBorderWindow>::~ScopedVclPtrInstance<ImplBorderWindow>() vcllo.dll!Dialog::GetDrawWindowBorder(long & rLeftBorder, long & rTopBorder, long & rRightBorder, long & rBottomBorder) Line 1389 tklo.dll!VCLXDialog::getInfo() Line 2302 basctllo.dll!basctl::DlgEdForm::getDeviceInfo() Line 1642 basctllo.dll!basctl::DlgEdObj::TransformFormToSdrCoordinates(long nXIn, long nYIn, long nWidthIn, long nHeightIn, long & nXOut, long & nYOut, long & nWidthOut, long & nHeightOut) Line 351 basctllo.dll!basctl::DlgEditor::AdjustPageSize() Line 1182 basctllo.dll!basctl::DlgEditor::SetDialog(const com::sun::star::uno::Reference<com::sun::star::container::XNameContainer> & xUnoControlDialogModel) Line 351 basctllo.dll!basctl::DlgEditor::ResetDialog() Line 409 basctllo.dll!basctl::DlgEdObj::_propertyChange(const com::sun::star::beans::PropertyChangeEvent & evt) Line 1147 basctllo.dll!basctl::DlgEdPropListenerImpl::propertyChange(const com::sun::star::beans::PropertyChangeEvent & evt) Line 44 cppuhelper3MSC.dll!cppu::OPropertySetHelper::fire(long * pnHandles, const com::sun::star::uno::Any * pNewValues, const com::sun::star::uno::Any * pOldValues, long nHandles, unsigned char bVetoable) Line 733 comphelper.dll!comphelper::OPropertySetAggregationHelper::propertiesChange(const com::sun::star::uno::Sequence<com::sun::star::beans::PropertyChangeEvent> & _rEvents) Line 398 comphelper.dll!comphelper::OPropertySetHelper::fire(std::unique_lock<std::mutex> & rGuard, const long * pnHandles, const com::sun::star::uno::Any * pNewValues, const com::sun::star::uno::Any * pOldValues, long nHandles, bool bVetoable) Line 594 comphelper.dll!comphelper::OPropertySetHelper::impl_fireAll(std::unique_lock<std::mutex> & rGuard, long * i_handles, const com::sun::star::uno::Any * i_newValues, const com::sun::star::uno::Any * i_oldValues, long i_count) Line 487 comphelper.dll!comphelper::OPropertySetHelper::setFastPropertyValues(std::unique_lock<std::mutex> & rGuard, long nSeqLen, long * pHandles, const com::sun::star::uno::Any * pValues, long nHitCount) Line 748 tklo.dll!UnoControlModel::setFastPropertyValueImpl(std::unique_lock<std::mutex> & rGuard, long nPropId, const com::sun::star::uno::Any & rValue) Line 1247 comphelper.dll!comphelper::OPropertySetHelper::setFastPropertyValue(long nHandle, const com::sun::star::uno::Any & rValue) Line 393 comphelper.dll!comphelper::OPropertySetAggregationHelper::setFastPropertyValue(long _nHandle, const com::sun::star::uno::Any & _rValue) Line 528 cppuhelper3MSC.dll!cppu::OPropertySetHelper::setPropertyValue(const rtl::OUString & rPropertyName, const com::sun::star::uno::Any & rValue) Line 264 • pcrlo.dll!pcr::FormComponentPropertyHandler::setPropertyValue(const rtl::OUString & _rPropertyName, const com::sun::star::uno::Any & _rValue) Line 465 pcrlo.dll!pcr::OPropertyBrowserController::Commit(const rtl::OUString & rName, const com::sun::star::uno::Any & _rValue) Line 1326 pcrlo.dll!pcr::OBrowserListBox::valueChanged(const com::sun::star::uno::Reference<com::sun::star::inspection::XPropertyControl> & _rxControl) Line 637 pcrlo.dll!pcr::PropertyControlContext_Impl::impl_processEvent_throw(const comphelper::AnyEvent & _rEvent) Line 291 pcrlo.dll!pcr::PropertyControlContext_Impl::processEvent(const comphelper::AnyEvent & _rEvent) Line 272 comphelper.dll!comphelper::AsyncEventNotifierBase::execute() Line 138 comphelper.dll!comphelper::AsyncEventNotifier::execute() Line 155 salhelper3MSC.dll!salhelper::Thread::run() Line 40 salhelper3MSC.dll!threadFunc(void * param) Line 190 sal3.dll!oslWorkerWrapperFunction(void * pData) Line 67 ucrtbased.dll!thread_start<unsigned int (__cdecl*)(void *),1>(void * const parameter) Line 97 kernel32.dll!BaseThreadInitThunk() ntdll.dll!RtlUserThreadStart() In this case, there is no reason to hold the mutex so long. It is only needed to get copies of the object state, so only lock the mutex for that necessary time frame. Change-Id: Iab8bedb901295a6936d85de1cfb20efa2ce8a4f4 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/202299 Tested-by: Mike Kaganski <mike.kaganski@collabora.com> Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Miscellaneous Modules
This module contains a grab-bag of unrelated miscellaneous libraries, none of which is an extension.
Application Online Update Checking
When we start LO, first InitUpdateCheckJobThread is created, via
UpdateCheckJob::execute() (from extensions/source/update/check/updatecheckjob.cxx),
as a reaction to a onFirstVisibleTask event. It waits 25 seconds (so that it
does not interfere with the startup itself), and then calls
UpdateCheck::initialize() (from extensions/source/update/check/updatecheck.cxx).
This creates one more thread, UpdateCheckThread, that regularly checks whether
we have reached the time when we should ask for the update. If yes, asks for
that, and shows the download button in the menu (if the new update is
available).
The update server will decide if there is an update available based on the user-agent string created by UpdateInformationProvider::getUserAgent, the data used there is extracted from instdir/program/versionrc and the update server takes the buildid into account, so to experiment with the updates from a dev version getUserAgent needs to return a recognized id.
OLE Automation Bridge
A bridge between "OLE automation" and UNO, so you can use UNO services from JScript, VBScript, etc.
https://www.openoffice.org/udk/common/man/spec/ole_bridge.html
See udkapi/com/sun/star/bridge/oleautomation/ApplicationRegistration.idl
This is initialized in Desktop::Main() in Desktop::OpenClients_Impl()
by creating the service com.sun.star.bridge.OleApplicationRegistration,
which is implemented by OleServer_Impl.
See extensions/source/ole/
ActiveX Control
This allows embedding LO into a Win32 application as an ActiveX control.
See extensions/source/activex/
Spotlight Provider
On macOS, this allows indexing ODF documents with Spotlight.
See extensions/source/macosx/spotlight/
Scanner Support
You can scan from LibreOffice, using platform specific backends like TWAIN/SANE.
See extensions/source/scanner/