<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> Thanks for those links Kris, For years, I've been teaching 'Event Based Programming', giving the example of <blockquote>You set your alarm You go to sleep You get up when the alarm rings </blockquote> I have been criticising students who wrote code which went <blockquote>Set the alarm Keep one eye on the alarm, waiting for it to go off. </blockquote> Now, it seems, that thanks to a feature in the design of Unix, I have to do just that. Ah well. At least I know what I am trying to prevent. Ian <div class="moz-cite-prefix">On 02/02/2013 16:58, Krzysztof Konopko wrote: </div> <blockquote cite="mid:510D45BB.6020202@youview.com" type="cite"> <pre wrap=""> I think that gst-launch doesn't take the best approach to signal handling. Use signalfd instead [1]. An example might be useful [2]. You get a file descriptor which you can watch it with g_io_add_watch() [3]. See the example [4] [1] <a class="moz-txt-link-freetext" href="http://linux.die.net/man/2/signalfd">http://linux.die.net/man/2/signalfd</a> [2] <a class="moz-txt-link-freetext" href="http://kriscience.blogspot.co.uk/2013/02/handling-posix-signals.html">http://kriscience.blogspot.co.uk/2013/02/handling-posix-signals.html</a> [3] <a class="moz-txt-link-freetext" href="http://developer.gnome.org/glib/stable/glib-IO-Channels.html">http://developer.gnome.org/glib/stable/glib-IO-Channels.html</a> [4] <a class="moz-txt-link-freetext" href="http://kriscience.blogspot.co.uk/2012/12/reading-standard-input-from-gmainloop.html">http://kriscience.blogspot.co.uk/2012/12/reading-standard-input-from-gmainloop.html</a> _______________________________________________ gstreamer-devel mailing list <a class="moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </pre> </blockquote> <div class="moz-signature"> </div> </body> </html>