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Date:	Wed, 2 Mar 2005 20:03:33 -0500
From:	Christopher Faylor <cgf-no-personal-reply-please AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: 1.5.12: signals stop working after system()
Message-ID:	<20050303010333.GA27514@trixie.casa.cgf.cx>
Reply-To:	cygwin AT cygwin DOT com
References:	<bccc8ac805030123443f06f102 AT mail DOT gmail DOT com>
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In-Reply-To:	<bccc8ac805030123443f06f102@mail.gmail.com>
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On Wed, Mar 02, 2005 at 02:44:34AM -0500, Jeff Allen wrote:
>Ctrl-C cannot kill my program after it calls system(). It's happening
>in a bigger program that uses UDP, etc. But I can reproduce it in the
>tiny program below.
>
>The following test program shows the problem. You can kill it with
>ctrl-c during the first sleep, but you cannot kill it during the
>second sleep. It will exit correctly after 5 seconds.
>
>#include <stdio.h>
>int main()
>{
>        printf("sleeping for 5 secs...\n");
>        sleep(5);
>        system("echo the hostname is: `hostname`");
>        printf("sleeping for 5 secs...\n");
>        sleep(5);
>}
>
>I noticed lots of discussion about signals in the archives, but
>nothing related to signals and system().

There actually was some discussion about signals and system because I
fixed a problem with them back in (I think) 2003.  I didn't go far
enough in my fix, however.  A better solution should be in today's
snapshot: http://cygwin.com/snapshots/ which is uploading right now.

cgf

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