sunet/scheme/lib/sunet-utilities.scm

17 lines
460 B
Scheme

; some useful utilities
(define (host-name-or-ip addr)
(with-fatal-error-handler
(lambda (condition more)
(call-with-values
(lambda () (socket-address->internet-address addr))
(lambda (ip port)
(format-internet-host-address ip))))
(host-info:name (host-info addr))))
(define (on-interrupt interrupt thunk)
(let lp ((event (most-recent-sigevent)))
(let ((next (next-sigevent event interrupt)))
(thunk)
(lp next))))