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From: sjw <simon.j.wright@mac.com>
Newsgroups: comp.lang.ada
Subject: Re: Interrupt handler and Ada.Real_Time.Timing_Events
Date: Fri, 15 May 2009 23:28:47 -0700 (PDT)
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Date: 2009-05-15T23:28:47-07:00
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On Mac OS X/GCC 4.3.3, the program as written outputs "raised
PROGRAM_ERROR : Interrupt 15 is reserved".

Changed to SIGUSR1: now runs as designed.

Sending SIGTERM is ignored (this seems odd).

Uncomment Timing_Events: doesn't report anything, but ps shows "User
defined signal 1   ./interrupt_problem" and when I run ps again the
process has gone.

This is all deep stuff (and apparently OS-dependent)! If I had this
sort of problem at work, I would raise a ticket with AdaCore straight
away.