Re: fork and pthreads

From: Doug McNaught (doug@wireboard.com)
Date: Fri Mar 16 2001 - 12:23:15 EST


Sane_Purushottam@emc.com writes:

> I am having a strange problem.
>
> I have a big daemon program to which I am trying to add multi-threading.
>
> At the begining, after some sanity check, this program does a double fork to
> create a deamon.
>
> After that it listens for the client on the port. Whenever the client
> connects, it creates a new thread using
> pthread-create.
>
> The problem is, the thread (main thread) calling pthread-create hangs
> indefinetely in __sigsuspend. The newly created thread however, runs
> normally to completion.

Just a guess--are you calling setsid() to establish a new session?
Omitting this *might* cause signal-delivery problems in pthreads.

-Doug
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