Welcome to the CHICKEN Scheme pasting service
simpler (?) non-mutex application-lock added by Tolstoy on Mon Jun 22 09:57:34 2020
;; (import (chicken process signal)) (import (chicken condition)) (import srfi-18) (define (wait-for-signal on-exit) (let* [(wait-forever (lambda _ (let loop () (thread-sleep! 10000) (loop)))) (t (thread-start! wait-forever)) (terminate! (lambda _ (thread-terminate! t)))] (set-signal-handler! signal/int terminate!) (set-signal-handler! signal/hup terminate!) (with-exception-handler (lambda _ (on-exit)) (lambda _ (thread-join! t))))) (define (main) (print "Initializing ...") ;; Create some resources ;; spawn some services (passing in resources, or state) ;; and then... (print "And now we're waiting.") (wait-for-signal (lambda _ (print "now exiting, clean up resources, stop threads, whatever")))) (main)