std::os::signal

Status: experimental

POSIX-style signal subscription (Go's os/signal shape).

Items

Item	Signature	Description
Signal	type Signal	Opaque signal name; constructors live in sigs.
Notifier	type Notifier	Returned by on(sig); supports wait / try_wait / stop.
on	fn on(signum: i64) -> os::signal::Notifier	Subscribes to a signal; returns a Notifier.
wait	fn wait(notifier: os::signal::Notifier) -> bool	wait() -> bool: blocks the calling goroutine until the subscribed signal fires (true) or its cohort is cancelled (false), without holding a scheduler worker. On wasm32, which delivers no signals, it answers false at once.
try_wait	fn try_wait(notifier: os::signal::Notifier) -> bool	Non-blocking poll: returns true if the subscribed signal has fired.
stop	fn stop(notifier: os::signal::Notifier) -> ()	stop(): the notifier delivers nothing more, so its waits answer false; once no notifier subscribes to the signal it takes its default disposition again. Go's signal.Stop.
SIGHUP	const SIGHUP	Hangup: the controlling terminal closed (1).
SIGINT	const SIGINT	Interrupt, Ctrl-C (2).
SIGQUIT	const SIGQUIT	Quit, Ctrl-\ (3); also renders the goroutine dump.
SIGTERM	const SIGTERM	Termination request (15).
SIGUSR1	const SIGUSR1	User signal 1 (10 on Linux, 30 on macOS).
SIGUSR2	const SIGUSR2	User signal 2 (12 on Linux, 31 on macOS).
SIGWINCH	const SIGWINCH	The terminal window changed size (28). Never delivered on Windows.
SIGTSTP	const SIGTSTP	Terminal stop, Ctrl-Z (20 on Linux, 18 on macOS). Subscribing replaces the default stop, so the program stops itself. Never delivered on Windows.
SIGCONT	const SIGCONT	Continue after a stop (18 on Linux, 19 on macOS). Never delivered on Windows.