Hi Eike, Thank you for your quick and nice response. I am checking out the events and classes you recommended. Here is a minor remind that modified() is a method of XResultListener (not XVolatileResult). It is implemented in Calc by SCAddInListener class.
Best, Wendi Eike Rathke-2 wrote > > Hi anwen, > > On Tuesday, 2012-07-31 08:30:30 -0700, anwen wrote: > >> Eike, I agree with you that the listeners are destroyed during document >> close. I observed it in my log file. However, the worker thread is >> running >> asynchronously if not calling the listeners' modified function. How can >> it >> know that the document is closed, stop calling the modified function, and >> quit itself gracefully. So in the first post, I asked if there is a >> signal >> which announces that the document is closed. > > There are two events that could be used, OnPrepareUnload that afair is > vetoable so your application could finish something it needs the > document for, and the unconditional OnUnload event. For both events you > could switch off calling the corresponding modified() when received. > > For general handling see > http://wiki.services.openoffice.org/wiki/Documentation/DevGuide/OfficeDev/Document_Events > > However, that's a bit outdated and instead of the deprecated > XEventBroadcaster and XEventListener the successors > XDocumentEventBroadcaster and XDocumentEventListener interfaces should > be used, see > http://api.libreoffice.org/common/ref/com/sun/star/document/XDocumentEventBroadcaster.html > > > Still, for the apparent race condition I'd like to see if Calc's > XVolatileResult::modified() implementation could be changed such that in > case the corresponding document is in close the mutex isn't attempted to > be locked anymore. > > >> Please correct me if there is something wrong with my thought. > > No, nothing :-) > > Eike > > -- > LibreOffice Calc developer. Number formatter stricken i18n > transpositionizer. > GnuPG key 0x293C05FD : 997A 4C60 CE41 0149 0DB3 9E96 2F1A D073 293C 05FD > > _______________________________________________ > LibreOffice mailing list > LibreOffice@.freedesktop > http://lists.freedesktop.org/mailman/listinfo/libreoffice > -- View this message in context: http://nabble.documentfoundation.org/Solarmutex-Deadlock-when-Closing-Calc-which-contains-functions-with-XVolatileResult-return-values-tp3998056p3998808.html Sent from the Dev mailing list archive at Nabble.com. _______________________________________________ LibreOffice mailing list LibreOffice@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/libreoffice
