Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!seismo!sundc!newstop!sun!turnpike!argv From: argv%turnpike@Sun.COM (Dan Heller) Newsgroups: comp.windows.x Subject: Re: Problem with Signals Message-ID: <132493@sun.Eng.Sun.COM> Date: 4 Mar 90 02:52:19 GMT References: <9002281729.AA02895@wilkins.bcm.tmc.edu> <132399@sun.Eng.Sun.COM> <4429@quanta.eng.ohio-state.edu> Sender: news@sun.Eng.Sun.COM Reply-To: argv@sun.UUCP (Dan Heller) Lines: 41 In article <4429@quanta.eng.ohio-state.edu> JONESD@kcgl1.eng.ohio-state.edu (David Jones) writes: > Instead of hacking up tookits to allow your application to add signal handlers, > I'd rather see them hacked up to convert signals into client events. The > application would deal with with the signal as another event to deal and > not as something to be dealt with by a signal handler. That's fundamentally the same thing I'm talking about. That is, you register signals and handlers (functions) associated with those signals in case a signal is delivered. The toolkit then calls the function registered. However, the idea asbout converting signals into events odesn't make sense -- signals don't happen in windows [%] and they don't have x,y values or serial IDs etc.. associated with them so the generic event type can't fill in anything. Keep the signals as signals... [%] SIGWINCH is a possible exception and an interesting case.. altho not that interesting... From: PARCEL@INTELLICORP.COM (Scott Parcel) Subject: X & Signals Message-ID: <9002281442.aa11275@mintaka.lcs.mit.edu> Date: 28 Feb 90 19:37:02 GMT I have some questions and comments about the recent discussion of handling events inside of Unix signal handlers. My particular interest is in using signals to do all X event processing. Can you please explain this? This makes no sense to me. What kind of interface do you provide for an application that does nothing but trap signals? What kind of functionality does such an application serve? The following is my understanding of signal handling problems and methodology: dan ----------------------------------------------------------- O'Reilly && Associates argv@sun.com / argv@ora.com 632 Petaluma Ave, Sebastopol, CA 95472 800-338-NUTS, in CA: 800-533-NUTS, FAX 707-829-0104 Opinions expressed reflect those of the author only.