http://gitweb.samba.org/?p=metze/samba/wip.git; a=shortlog; h=refs/heads/master4-double-fork

[Volker Lendecke]

On Wed, Oct 27, 2010 at 09:51:22AM +0200, Stefan (metze) Metzmacher wrote:
> The goal was to avoid setting global signal handlers and to avoid
> threads.
> 
> The solution I found (with help from Tridge) was to use a 2 staged
> fork() in order to avoid generating SIGCHLD from the child.
> At the same time the child should never endup as zombie.

Haven't looked at the code yet, but that is a *VERY* smart
idea! The only downside I can see is that in ps output you
might see tons of independent async helpers, the helper
relationship is not obvious from the ppid anymore. But that
is a minor issue that we can live with I think.

Volker