From owner-freebsd-questions Tue Jan 11 15:55:42 2000 Delivered-To: freebsd-questions@freebsd.org Received: from smtp10.atl.mindspring.net (smtp10.atl.mindspring.net [207.69.200.246]) by hub.freebsd.org (Postfix) with ESMTP id 50B5614C32 for ; Tue, 11 Jan 2000 15:55:37 -0800 (PST) (envelope-from stuyman@confusion.net) Received: from confusion.net (user-2ive66v.dialup.mindspring.com [165.247.24.223]) by smtp10.atl.mindspring.net (8.9.3/8.8.5) with ESMTP id SAA15837 for ; Tue, 11 Jan 2000 18:55:34 -0500 (EST) Message-ID: <387BC2C7.44B12247@confusion.net> Date: Tue, 11 Jan 2000 18:54:47 -0500 From: Laurence Berland Organization: B.R.A.T.T. X-Mailer: Mozilla 4.5 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: freebsd-questions@FreeBSD.ORG Subject: Re: Giving a sighandler more information References: <200001111215.NAA22385@dorifer.heim3.tu-clausthal.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Oliver Fromme wrote: > > Laurence Berland wrote in list.freebsd-questions: > > Oliver Fromme wrote: > >> > >> I'm afraid there is no other way than using global variables. > >> Be sure to declare them as ``volatile sig_atomic_t''. > >> > > What does this do as compared to declaring them normally? > > It makes them work, as opposed to not work. :-) > > Seriously. You _must_ declare global variables which are > accessed from a signal handler as ``volatile sig_atomic_t''. > Everything else is _not_ guaranteed to work (and if it works, > then it's just pure luck). > > Regards > Oliver > Does this have something to do with the signal being caught while we're in the signal routine? Am I on the right track? -- Laurence Berland, Stuyvesant HS Debate <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> Windows 98: n. useless extension to a minor patch release for 32-bit extensions and a graphical shell for a 16-bit patch to an 8-bit operating system originally coded for a 4-bit microprocessor, written by a 2-bit company that can't stand for 1 bit of competition. http://stuy.debate.net icq #7434346 aol imer E1101 The above email Copyright (C) 1999 Laurence Berland All rights reserved To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message