Re: [Caml-list] Threads, Signals and Events

[Christophe Raffalli <Christophe.Raffalli@univ-savoie.fr>]

[-- Attachment #1.1: Type: text/plain, Size: 1495 bytes --]

Erik de Castro Lopo a écrit :
> Hi all,
>
> I'm doing some systems programming where I need to use threads
> (standard threads, not cothreads), signals and events. The program
> has a couple of things to do:
>
>  a) Start program X, do a wait on its pid and restart X if it dies
>     and log information to syslog.
>  b) Periodically run other system checks and log results to syslog.
>     Certain types of system failures need to be communicated to
>     program X so that it can modify its behaviour.
>  c) Catch SIGHUP, and on reception, kill program X (send SIGHUP first
>     and if that doesn't work SIGTERM and finally SIGKILL) and then
>     exit itself.
>
> Since the system checks can take some time (mostly waiting for the
> kernel to do stuff rather than intensive processing) and program X
> needs to be restarted immediately if it dies, using threads seems 
> to be an obvious solution.
>
>   
Why not processes and fork ?

Christophe

-- 
Christophe Raffalli
Universite de Savoie
Batiment Le Chablais, bureau 21
73376 Le Bourget-du-Lac Cedex

tel: (33) 4 79 75 81 03
fax: (33) 4 79 75 87 42
mail: Christophe.Raffalli@univ-savoie.fr
www: http://www.lama.univ-savoie.fr/~RAFFALLI
---------------------------------------------
IMPORTANT: this mail is signed using PGP/MIME
At least Enigmail/Mozilla, mutt or evolution 
can check this signature. The public key is
stored on www.keyserver.net
---------------------------------------------


[-- Attachment #1.2: Christophe_Raffalli.vcf --]
[-- Type: text/x-vcard, Size: 310 bytes --]

begin:vcard
fn:Christophe Raffalli
n:Raffalli;Christophe
org:LAMA (UMR 5127)
email;internet:christophe.raffalli@univ-savoie.fr
title;quoted-printable:Ma=C3=AEtre de conf=C3=A9rences
tel;work:+33 4 79 75 81 03
note:http://www.lama.univ-savoie.fr/~raffalli
x-mozilla-html:TRUE
version:2.1
end:vcard


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 249 bytes --]