At 07:39 PM 28/3/95 -0800, Paul Taffel wrote: >The bottom line is that applications are expected to arm the appropriate >Posix signal handlers for the SIGINT signal (which is what's generated >when a Posix application sees <Control-Y>), and that there's nothing >anyone can do (at least under MPE/iX 5.0) to prevent the SIGINT from >propagating to all processes in the process tree. [snip...] >It seemed ridiculous to me that all process-handling applications should >have to add SIGINT handlers to work-around this 'feature', but it also >seems that there's no easy way for SIGINT to have been implemented in a >Posix-compliant manner without having this side-effect. My thoughts when I first saw this complaint were that it sounds like standard Unix operating behaviour: propagate all signals to parent processes; when in doubt (ie not trapped), then abort. Guess we are obliged to take the bad with the good, but I'd have expected better from MPE. ---- Jim "seMPEr" Wowchuk Internet: [log in to unmask] Vanguard Computer Services Compu$erve: 100036,106 _--_|\ Post: PO Box 18, North Ryde, NSW 2113 / \ Phone: +61 (2) 888-9688 \.--.__/ <---Sydney NSW Fax: +61 (2) 888-3056 v Australia