Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Tue, 8 Feb 2005 15:22:19 -0600 From: Brian Ford Reply-To: cygwin@cygwin.com To: Max Bowsher cc: cygwin@cygwin.com Subject: Re: Problem with alarm() not functioning twice in one program. In-Reply-To: <002201c50e1f$943c9320$e6ec6f83@robinson.cam.ac.uk> Message-ID: References: <030901c50e1d$51a22b30$e6ec6f83@robinson.cam.ac.uk> <002201c50e1f$943c9320$e6ec6f83@robinson.cam.ac.uk> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-OriginalArrivalTime: 08 Feb 2005 21:20:00.0018 (UTC) FILETIME=[F235BF20:01C50E23] X-IsSubscribed: yes On Tue, 8 Feb 2005, Max Bowsher wrote: > Brian Ford wrote: > > On Tue, 8 Feb 2005, Max Bowsher wrote: > >> The following program produces the output: > >> > >> Begin > >> Done > >> Begin > >> ...and then hangs. > >> > >> Can anyone help me understand why? > >> > > http://www.cygwin.com/ml/cygwin/2004-10/msg00598.html > > Ah, OK. > > So are you saying "SIGALRM has been entered, but has not returned, so the > signal handling code won't try to enter it again" ? SIGALRM has been blocked upon entry to the signal handling routine. Since you long jumped out of it, it's still blocked. Did you follow that thread through to the end? Maybe I should have quoted this instead: http://www.cygwin.com/ml/cygwin/2004-10/msg00606.html -- Brian Ford Senior Realtime Software Engineer VITAL - Visual Simulation Systems FlightSafety International the best safety device in any aircraft is a well-trained pilot... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/