Re: prompt script exiting

[William Cohen <wcohen at redhat dot com>]

Frank Ch. Eigler wrote:
> "Mao, Bibo" <bibo.mao@intel.com> writes:
>
>
> > [...]  I do know whether judge the value of _stp_exit flag just
> > before kprobe/kretprobe handler running. And then when it is set as
> > 1, kprobe/kretprobe handler return immediately [...]
>
>
> The _stp_exit flag could be associated with the translator's overall
> session_state flag, which has an STAP_SESSION_STOPPING value.  This is
> used during that phase when the "end" probes are run, and causes other
> probes to return early.  The tapset exit() function could set that in
> addition to calling the runtime function.
>
> - FChE

That sounds like it would operate in the manner that people would 
expect. Right now there can be a fairly delay between the exit() 
occuring in the script and the data collection begin shutdown.

What happens if there are two scripts running? Is this flag local to the 
script or a global? If it is global and there are two systemtap 
scription running with one of them is exiting, the other script script 
would also be affected and not collect data.

-Will