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Re: Program Interrupts (signals)


 

On Sun, Apr 26, 2020 at 10:32 AM, Bob Bolch wrote:
I very much disagree with the idea that HX be trappable.?
I am not sure what IBM did with their ABNEXIT ... if HX causes the normal abend processing it may trap it.

Commonly you have both, in Unix you have KILL and TERM signals (interrupts) TERM is maskable (trappable) bit KILL is nonmaskable. Typically a user or the OS first sends a term signal, waits to see if the process is being sensible, if not it sends a KILL. Windows has the same (but often the OS / Presentation Manager is a bit befuddled at this point ... Anyway Windows 10 seems to have fixed this).

Adrian

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