Dominik Vogt <fvwm-workers@fvwm.org> writes: > On Fri, Jun 29, 2001 at 02:27:38PM -0400, Dan Espen wrote: > > Dan Espen <[EMAIL PROTECTED]> writes: > > > Dominik Vogt <fvwm-workers@fvwm.org> writes: > > > > On Fri, Jun 29, 2001 at 10:36:02AM -0400, Dan Espen wrote: > > > > > Ok, heres a trace: > > > > > > > > I'm not quite sure what I should see in this trace. To me, it > > > > looks like a random piece of code recorded in a log file. Is this > > > > meant to demonstrate one of the busy wait cycles? If it is, it > > > > contains neither the start nor the end of the cycle. > > > > > > It is meant to demonstrate the cycle. > > > > > > I thought when it went from XQueryPointer at line 371 in menus.c > > > back to the same location I had the whole cycle. > > > > In the sample I sent, it seems to fake a MotionNotify event > > (line 1539, menus.c) and then start querying the pointer, I think > > its looking for a release event. > > > > If it still looks bad to you, I'll redo it. > > I might have inadvertantly moved the mouse while trying to get gdb > > to operate. > > Probably. A cycly should start at the beginning of the loop in > MenuInteraction().
Attached is a new trace. The while loop in menus.c starts with: flags.do_popdown_now = False; thats line 1427 in this trace. You will see that twice in the attached trace. Actually, I see it 4 times, in pairs like this: 1427 flags.do_popdown_now = False; 1425 flags.do_popup_and_warp = False; 1426 flags.do_popup_now = False; 1427 flags.do_popdown_now = False; I believe thats just the optimizer rearranging code. To produce this trace, I telneted into the machine running fvwm from the PC. Then I attached gdb to the running fvwm and typed "cont". Then I brought up a menu using the keyboard. The pointer was positioned on the first item in the menu (below the title). Looking at my cable modem, I could see packets flying back and forth. I then hit Ctrl-Alt-Tab to select the telnet window. This leaves the pointer on the menu item but I can type commands into the telnet window. I then hit ctrl-C to gain control and single stepped thru the loop a few times. In the attached trace, I took out the "(gdb)" prompts to make it easier to read.
tracecleaned.gdb
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-- Dan Espen 444 Hoes Lane Room RRC 1C-214 E-mail: [EMAIL PROTECTED] Piscataway, NJ 08854 Phone: (732) 699-5570
