[launchd-dev] Launchd API

[Xavier Guérin]

Hello,

I'm currently involved in the development of an SSH tunnel management  
application that strongly relies on launchd (http://vortex-ssh.googlecode.com 
  for the curious).

The application is composed of two elements. The first element is a  
PreferencePane that takes care of the tunnels creation. It generates a  
launchd-compatible property list for each configured ssh connection,  
and it will be responsible for loading/unloading of the plists into  
launchd. The second element is a launchd agent that periodically polls  
the status of the SSH connections and update some GUI.

I'm perfectly aware that this question may have already been asked  
numerous time (and I'm in advance sorry for this), but is there any  
kind of documentation concerning the message exchanges with launchd  
(SampleD not really helping)? Reading launchctl.c I've already been  
able to do some of the polling code of the agent (even though some  
data structure are still a complete mystery as I speak), but the load/ 
unload part seems really intricate, and I'm afraid to be obliged to  
use execve + launchctl to make it work.

Thank you for your time and your help.

Regards,
Xavier

-----
Xavier Guérin - Doctoral student
TIMA Laboratory, SLS Group
46, av. Félix Viallet, 38000 GRENOBLE, FR
Mail : xavier.guerin at imag.fr
Phone : +33(0)4 76 57 47 59
Ad Astra Per Aspera
Triste e' quel discepolo che non avanza il suo maestro

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