Re: deadlock in awt

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From: peter@transvirtual.com
Date: Thu Dec 17 1998 - 18:16:50 EST

On Thu, 17 Dec 1998, Godmar Back wrote:
>The awt toolkit deadlocks for Les Schaffer on his P/90.
>
>The program for which that happens is FileViewer.java (appended)
>and it's likely somewhere in the pack call.
>
>The two threads that deadlock are the main thread and the awt event queue
>thread, as one would expect.

Indeed - I recently fixed an "active" deadlock (actually a infinite loop) which
came up with the threaded (blocking) AWT. In Java_java_awt_Toolkit_evtWakeup()
(evt.c), move the whole ..
 if ( !X->wakeUp ) {
    ..
 }
 ..

block up into Java_java_awt_Toolkit_evtInit() (doesn't matter where, it just
has to be initialized before the first nextEvent() call happens).

Let me know if this helps. Works fine on my current snap (which I will try to
convert into a full patch before christmas)

-- Peter- Pete

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