Hello,
I am developing a highly configurable python script launcher for the
robocup rescue system and came up with a problem like that. The kernel
just waits for something and does not start the simulation.
After several days of frustration I discovered that the problem was
that the kernel waits for a SIGUSR1 that sometimes is not "signaled"
at all.
Then I noticed the use of sigpause() in the file System.cxx. checking the
manual pages I found out this beatiful :P description:
DESCRIPTION
Don't use this function. Use sigsuspend(2) instead.
I decided to delete/comment the sigpause line and replace it with:
sigset_t mask;
sigemptyset (&mask);
sigaddset (&mask, SIGUSR1);
sigsuspend (&mask);
Recompiled the kernel and the problem is now solved but I am wondering
if this replacement is accurate, does anyone knows something about this?
I don't know if this is the same problem you are having, I never
encountered this problems using all.sh, it only happens to me
when exec'ing from a python process.
Good luck,
David Ojeda
Universidad Simon Bolivar
Venezuela
On Mon, Aug 15, 2005 at 11:22:53PM +0200, sendmails@gmx.de wrote:
>
> Hi everyone!
>
> The simulator is running (all.sh, newest release) but no time elapses:
> --> Time:0 Score:98.00000
> The Agents are visible but do not act.
> Nothing seems to be calculated and the fire window stops after:
> warning: ignoring odd wall at building 64993858
> loaded radiation sample file "108541446800.rays"
> grid cell size=5000mm, x*y=67*88=5896
> sending SK_ACKNOWLEDGE..ok
>
> The kernel window says several times:
> free agents = 0, 10, 1, 5, 1, 10, 1 no ack=0
> And stops with:
> free a
>
> How can I start the simulation?
>
> Thank you!
>
> Til
>
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-- David Ojeda A david@ac.labf.usb.ve | david@gia.usb.ve Linux Registered User #355562_______________________________________________ robocup-rescue-s mailing list robocup-rescue-s@mailman.cc.gatech.edu https://mailman.cc.gatech.edu/mailman/listinfo/robocup-rescue-s
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