devsite/node_modules/signal-exit/dist/cjs/index.d.ts
2024-07-07 18:49:38 -07:00

48 lines
1.7 KiB
TypeScript

/// <reference types="node" />
import { signals } from './signals.js';
export { signals };
/**
* A function that takes an exit code and signal as arguments
*
* In the case of signal exits *only*, a return value of true
* will indicate that the signal is being handled, and we should
* not synthetically exit with the signal we received. Regardless
* of the handler return value, the handler is unloaded when an
* otherwise fatal signal is received, so you get exactly 1 shot
* at it, unless you add another onExit handler at that point.
*
* In the case of numeric code exits, we may already have committed
* to exiting the process, for example via a fatal exception or
* unhandled promise rejection, so it is impossible to stop safely.
*/
export type Handler = (code: number | null | undefined, signal: NodeJS.Signals | null) => true | void;
export declare const
/**
* Called when the process is exiting, whether via signal, explicit
* exit, or running out of stuff to do.
*
* If the global process object is not suitable for instrumentation,
* then this will be a no-op.
*
* Returns a function that may be used to unload signal-exit.
*/
onExit: (cb: Handler, opts?: {
alwaysLast?: boolean | undefined;
} | undefined) => () => void,
/**
* Load the listeners. Likely you never need to call this, unless
* doing a rather deep integration with signal-exit functionality.
* Mostly exposed for the benefit of testing.
*
* @internal
*/
load: () => void,
/**
* Unload the listeners. Likely you never need to call this, unless
* doing a rather deep integration with signal-exit functionality.
* Mostly exposed for the benefit of testing.
*
* @internal
*/
unload: () => void;
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