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[Chicken-users] question about signal handler

From: Valentyn Kamyshenko
Subject: [Chicken-users] question about signal handler
Date: 04 Oct 2002 00:12:55 -0700
User-agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Honest Recruiter)


it appears that on my system the signal handling is performing in a
very strange way.

In my understanding, the program below, being compiled and started,
should print "hello" and exit when I send it the SIGHUP signal. It
does not. Instead, it prints "hello" when the "sleep" is finished
(either after 30 secs or being killed). I tried also
process-run/process-wait combination - with a similar result.

Will be very appreciated for your help.

OS:          various x86 Linux'es
Compilation: csc -o signal_test signal_test.scm

;===== signal_test.scm ======
(declare (uses posix)
(set-signal-handler! signal/hup (lambda (s) (display "hello\n") (exit)))
(system "sleep 30")

        Valentyn Kamyshenko

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