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