[Chicken-users] question about signal handler

[Valentyn Kamyshenko]

Hello,

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)
         (interrupts-enabled))
(set-signal-handler! signal/hup (lambda (s) (display "hello\n") (exit)))
(system "sleep 30")
;============================


-- 
Regards,
        Valentyn Kamyshenko