Hi.
I have a loop that looks like this...
while( gtk_events_pending () )
{
printf("%s: will do: gtk_main_iteration ", __FUNCTION__);
gtk_main_iteration ();
}
If I understand right, that should be pretty standard GTK+ code. Sometimes
when my program hits this loop, gtk_events_pending() blocks forever and
my application starts using all the cpu cycles. If I attach to it with
gdb I get a back trace that looks something like this:
(gdb) bt
#0 0x408174b8 in select () from /lib/tls/libc.so.6
#1 0x408acb00 in _XGetAsyncData () from /usr/X11R6/lib/libX11.so.6
#2 0x408ad2d2 in _XFlush () from /usr/X11R6/lib/libX11.so.6
#3 0x408ad0e7 in _XFlush () from /usr/X11R6/lib/libX11.so.6
#4 0x408ad84b in _XEventsQueued () from /usr/X11R6/lib/libX11.so.6
#5 0x408a0a59 in XPending () from /usr/X11R6/lib/libX11.so.6
#6 0x403382b2 in gdk_check_xpending (display=0x1) at gdkevents-x11.c:147
#7 0x4033a93f in gdk_event_prepare (source=0x1, timeout=0x1) at gdkevents-x11.c:2183
#8 0x40464448 in IA__g_main_context_prepare (context=0x80c6520, priority=0xbfffd734) at gmain.c:2265
#9 0x40464dd6 in g_main_context_iterate (context=0x80c6520, block=0, dispatch=0, self=0x80d2cf0) at gmain.c:2558
#10 0x404650f9 in IA__g_main_context_pending (context=0x80c6520) at gmain.c:2606
#11 0x4014415f in IA__gtk_events_pending () at gtkmain.c:1036
...
I imagine select() doesn't block too long because my program is keeping
the cpu so busy. Is it possible I'm screwing up my environment somehow
that's causing this breakage? Am I using gtk_events_pending()
incorrectly? What should I look for?
Thanks a lot!
- Ben
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