|Bill Allombert on Tue, 06 Dec 2005 21:17:49 +0100|
[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]
|Re: handling interrupt|
On Mon, Dec 05, 2005 at 04:24:10PM -0800, Ilya Zakharevich wrote: > On Mon, Dec 05, 2005 at 04:40:09PM -0500, Igor Schein wrote: > > Hi, > > > > Don't try this in a gp session you care about: > > > > k=0;while(k++,print(k);system("sleep 1")) > > > > Now that's what I call a true infinite loop, the one you cannot break > > out of. > > ??? kill -INT $GP_PID I had the same idea, but it does not work for me (on GNU/Linux). The system(3) man page states that: system() executes a command specified in command by calling /bin/sh -c command, and returns after the command has been completed. During exe- cution of the command, SIGCHLD will be blocked, and SIGINT and SIGQUIT will be ignored. So it is not better here than typing ^C and hoping that does not happen during the call to system(3). According to the very usefull FreeBSD manpages database <http://www.freebsd.org/cgi/man.cgi>, all BSD based systems have the same behaviour. The SunOS 5.9 manpage is unclear on this point. Cheers, Bill.