[Mono-winforms-list] Threading problem?
Hi guys, We are trying our existing .net app with Mono 2.8.1 in MAC OS 10.6.2, and so far we only have one problem. It's related to calling Invoke from a threadpool thread. The first thing this app does is showing a splash window (a form). Within this form, we queue the actual initialization process (ThreadPool.QueueUserWorkItem) so that it is executed in the background. We do show progress by updating the text of a label control by calling the form's Invoke method (Invoke(new MethodInvoker(updateProgress))). The problem is that we see the text being updated the first time, but the process gets blocked until the mouse is moved over the splash window, then things continue to work until the next call to the form's Invoke. For some reason, moving the mouse over the splash window gets the thread out of that blocked state. So, it seems that every time the background thread calls the form's Invoke/BeginInvoke with the appropriate parameters, the thread blocks. Any idea on what could be wrong, and how to address that? The same code works fine in Windows, and Linux. Thanks! -- View this message in context: http://mono.1490590.n4.nabble.com/Threading-problem-tp3059476p3059476.html Sent from the Mono - WinForms mailing list archive at Nabble.com. ___ Mono-winforms-list maillist - Mono-winforms-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-winforms-list
[Mono-winforms-list] Threading problem
Hi, Is there currently a problem with threading and winforms? If I run an app which uses System.Threading and winforms, I get the following when I quit XIO : fatal IO error 9 (Bad file descriptor on X server gibberish - literally! after 34932 requests (34923 known processed) with 0 events remaining. Is this a known problem? Using FC4 (rawhide) with mono (checked out from the developer branch at 16:00 British Summer time and compiled with make distclean via my script) TTFN Paul -- Some people will do anything for a woman in uniform - The Doctor - Unregenerate (Big Finish audio) signature.asc Description: This is a digitally signed message part ___ Mono-winforms-list maillist - Mono-winforms-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-winforms-list
Re: [Mono-winforms-list] Threading problem
Hi Peter, As you may have noticed by now, shutdown is not yet clean. Goes along the lines of the bug you filed about memory stuff on shutdown. Since it's shutdown and the app is done it's not highest on our priority list. It's mostly related to order of window destruction and explicit vs. implicit window destruction. Wasn't sure, so I thought I'd mention it here first. Thanks for the heads up. TTFN Paul -- Some people will do anything for a woman in uniform - The Doctor - Unregenerate (Big Finish audio) signature.asc Description: This is a digitally signed message part ___ Mono-winforms-list maillist - Mono-winforms-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-winforms-list
Re: [Mono-winforms-list] Threading problem
Hello, Is there currently a problem with threading and winforms? If I run an app which uses System.Threading and winforms, I get the following when I quit Winforms is not a multithreaded toolkit. You must use Control.Invoke to perform Winform calls from a different thread. ___ Mono-winforms-list maillist - Mono-winforms-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-winforms-list
