erl -detached doesn't properly detach itself (or does it?)

Bengt Kleberg <>
Thu Jan 10 07:46:02 CET 2002


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> Date: Thu, 10 Jan 2002 00:31:01 +0100
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...deleted

> Looking at the source in erlexec.c, I see the fork() calls, but I
> don't see a setsid() call. My (rusty) recollections of unix process
> groups is that you need to call setsid() to make sure you don't
> eventually get a SIGHUP.

According to Stevens (Advanced UNIX Programing) it is even neccessary with a 
second fork() after the setsid(). Provided that you have an old system. 
Presumably a modern UNIX does not need either?


bengt




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