Re: Gracefull Exit
Posted in 1995
Chetan Anand (anand@sin-co.sin-ro.DHL.COM) wrote: : > : > I would also be interested in an application that will cause : > user's to exit an application gracefully after being : > inactive for a certain period of time. : > : > [ Stuff Deleted ... ] : This can also be accomplished by interfacing with a 'C' Function which : in turn will set signal handler and will time out based on specified : interval. Upon interval elapse, 'C' Function should able to call : 4GL function to execute 'EXIT PROGRAM'. Does this technique use the alarm() system call? Wouldn't that interfere with programs that do a SLEEP? I think it is possible to code nested timers, if you are careful to save/restore the SIGALRM handler and the alarm value. But I have no idea how well this method works in Informix. -Jeff