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From: boyd@necisa.ho.necisa.oz (Boyd Roberts)
Newsgroups: comp.unix.programmer
Subject: Re: List of routines safe to use in signals?
Message-ID: <1960@necisa.ho.necisa.oz>
Date: 11 Dec 90 23:39:52 GMT
References: <RANG.90Dec10231747@nexus.cs.wisc.edu>
Organization: NEC Information Systems Australia Pty. Ltd.
Lines: 18

In article <RANG.90Dec10231747@nexus.cs.wisc.edu> rang@cs.wisc.edu (Anton Rang) writes:
>
>  Anyway, is such a list available on the net somewhere?  Lacking
>that, is there a reasonable heuristic to guess what's safe?
>

Assume that nothing is safe when it comes to library routines
being called from within signal handlers.  There should be a
FAQ entry that encourages the practice of doing as little
as possible in signal handlers.

Set a flag in the signal handler and check for it elsewhere in
the code.  Keep it simple and you won't get burned.


Boyd Roberts			boyd@necisa.ho.necisa.oz.au

``When the going gets wierd, the weird turn pro...''