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Date:      23 Jul 2001 14:04:47 +0200
From:      Assar Westerlund <assar@FreeBSD.org>
To:        Alfred Perlstein <bright@sneakerz.org>
Cc:        Brian Somers <brian@Awfulhak.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/lib/libutil ecalloc.c emalloc.3 emalloc.c erealloc.c estrdup.c Makefile libutil.h
Message-ID:  <5ln15vx34w.fsf@assaris.sics.se>
In-Reply-To: Alfred Perlstein's message of "Mon, 23 Jul 2001 01:09:03 -0500"
References:  <assar@FreeBSD.org> <200107230223.f6N2Nfg14201@hak.lan.Awfulhak.org> <20010722223812.L49508@sneakerz.org> <5lr8v88d1m.fsf@assaris.sics.se> <20010723010902.M49508@sneakerz.org>

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Alfred Perlstein <bright@sneakerz.org> writes:
> > `Only use these functions when the only action on failure is to exit
> > the program' ?
> 
> s/exit/when there is no state that might need recovering from/

Yeah, I was trying to say both that there is no cleanup needed and
exiting is the right error handling.

> Basically, any subroutines that may fail for one reason or another
> _and_ use these functions become cancellation points, meaning they
> are unsafe to call if there is any in progress transactions that
> may need cleanup.  It taints code. :(

Yes.  You should not do this (independently if it's as code or a
function call) in a library.

/assar

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