[Ace-users] Re: [ace-bugs] Proactor event loop doesn't end when callingproactor_end_event_loop()

[Steve Huston]

Hi David,

Can you please enter this issue in Bugzilla
(http://deuce.doc.wustl.edu/bugzilla/)?

Thanks,
-Steve

--
Steve Huston, Riverace Corporation
Would you like ACE to run great on your platform?
See http://www.riverace.com/sponsor.htm


> -----Original Message-----
> From: ace-bugs-bounces at cse.wustl.edu 
> [mailto:ace-bugs-bounces at cse.wustl.edu] On Behalf Of David Faure
> Sent: Thursday, June 21, 2007 4:53 AM
> To: ace-bugs at cs.wustl.edu
> Subject: [ace-bugs] Proactor event loop doesn't end when 
> callingproactor_end_event_loop()
> 
> 
> ACE VERSION: 5.5.6
> 
> HOST MACHINE and OPERATING SYSTEM: Dual amd64, Linux Kubuntu 7.04
> 
> COMPILER NAME AND VERSION (AND PATCHLEVEL): gcc-4.1.2
> 
> THE $ACE_ROOT/ace/config.h FILE: symlink to config-linux.h
> 
> THE $ACE_ROOT/include/makeinclude/platform_macros.GNU FILE: 
> symlink to platform_linux.GNU
> 
> AREA/CLASS/EXAMPLE AFFECTED: 
> examples/Reactor/Proactor/test_end_event_loop.cpp
> 
> DOES THE PROBLEM AFFECT: Execution
> 
> SYNOPSIS:
>  This test is supposed to show how the proactor event loop 
> ends when calling proactor_end_event_loop().
>  However it fails, the event loop doesn't terminate.
> 
> DESCRIPTION:
>  On linux, the Proactor is in a blocking call to 
> ACE_POSIX_AIOCB_Proactor::handle_events_i(),
>  so if no events come in, the event loop never terminates, 
> the end_event_loop_ flag is never checked.
> 
>  The description of the test says "To end the event loop, 
> threads that are blocked in
>  waiting for completions are  woken up and the event loop 
> comes to the end."
>  but this waking up mechanism doesn't seem to work in the 
> current version of ACE (on linux).
> 
> REPEAT BY:
>  ./test_end_event_loop in ACE_wrappers/examples/Reactor/Proactor/
> 
> [...]
> (7869|1174452544):Going to do *timed* <run_event_loop>
> (7869 | 47863888310992):Calling end_event_loop     (I added 
> that debug line)
> ... and then nothing happens.
> 
> SAMPLE FIX/WORKAROUND:
>  That's the question. How do we wake up the proactor?
> 
> -- 
> David Faure, faure at kde.org, dfaure at klaralvdalens-datakonsult.se
> KDE/KOffice developer, Qt consultancy projects
> Klarälvdalens Datakonsult AB, Platform-independent software
solutions
> 
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