std/signal

POSIX signal handling.

from "std/signal" import { onSignal, ignoreSignal, resetSignal, SIGINT, SIGTERM, SIGHUP, SIGQUIT, SIGABRT, SIGKILL, SIGALRM }

Constants

Name	Value	Description
SIGHUP	1	Hangup
SIGINT	2	Interrupt (Ctrl+C)
SIGQUIT	3	Quit
SIGABRT	6	Abort
SIGKILL	9	Kill (cannot be caught)
SIGALRM	14	Alarm timer
SIGTERM	15	Termination

Functions

onSignal

fn onSignal(sig: i32, handler: fn(i32): void)

Register a handler function for the given signal. The handler receives the signal number.

ignoreSignal

fn ignoreSignal(sig: i32)

Set the signal disposition to ignore. The signal will be silently discarded.

resetSignal

fn resetSignal(sig: i32)

Reset the signal to its default disposition.

Example

from "std/signal" import { onSignal, SIGINT, SIGTERM }

fn main(): i32 {
    onSignal(SIGINT, (sig: i32): void => {
        print("caught interrupt, cleaning up...")
        exit(0)
    })

    onSignal(SIGTERM, (sig: i32): void => {
        print("terminated")
        exit(0)
    })

    // main loop...
    return 0
}