Xref: utzoo comp.lang.c:19814 comp.unix.questions:14808
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!dinl!noren
From: noren@dinl.uucp (Charles Noren)
Newsgroups: comp.lang.c,comp.unix.questions
Subject: malloc's and signals -- a dangerous mixture?
Keywords: C,UNIX,malloc,signal
Message-ID: <1064@dinl.mmc.UUCP>
Date: 10 Jul 89 16:40:59 GMT
Reply-To: noren@dinl.UUCP (Chuck Noren)
Followup-To: comp.lang.c
Organization: Martin Marietta I&CS, Denver CO.
Lines: 17

While reading the C standards group I came across the comment
that malloc's are dangerous to use in combination with signal
handlers.  I can see the potential problem if the malloc
library uses static storage and an malloc is interrupted with
another malloc in a signal handler.  Could someone shed some
light on the subject and possibly provide some rules when
malloc's are safe (and portable) to use with signals. 
Information specific to Sun 3 with SunOS 4.0 along with issues
dealing with other systems in general is desired.

Thanks in advance.
-- 
Chuck Noren
NET:     ncar!dinl!noren
US-MAIL: Martin Marietta I&CS, MS XL8058, P.O. Box 1260,
         Denver, CO 80201-1260
Phone:   (303) 971-7930