package b0

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package b0
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Signal exit hooks.

val on_sigint : hook:(unit -> unit) -> (unit -> 'a) -> 'a

on_sigint ~hook f calls f () and returns its value. If SIGINT is signalled during that time hook is called followed by exit 130 – that is the exit code a SIGINT would produce.

on_sigint replaces an existing signal handler for Sys.sigint during time of the function call. It is restored when the function returns.

Note. Since exit is called at_exit functions are called if a SIGINT occurs during the function call. This is not the case on an unhandled SIGINT.