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+12
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/**
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* This is a browser shim that provides the same functional interface
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* as the main node export, but it does nothing.
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* @module
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*/
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import type { Handler } from './index.js';
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export declare const onExit: (cb: Handler, opts: {
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alwaysLast?: boolean;
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}) => () => void;
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export declare const load: () => void;
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export declare const unload: () => void;
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//# sourceMappingURL=browser.d.ts.map
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+1
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{"version":3,"file":"browser.d.ts","sourceRoot":"","sources":["../../src/browser.ts"],"names":[],"mappings":"AAAA;;;;GAIG;AACH,OAAO,KAAK,EAAE,OAAO,EAAE,MAAM,YAAY,CAAA;AACzC,eAAO,MAAM,MAAM,EAAE,CACnB,EAAE,EAAE,OAAO,EACX,IAAI,EAAE;IAAE,UAAU,CAAC,EAAE,OAAO,CAAA;CAAE,KAC3B,MAAM,IAAqB,CAAA;AAChC,eAAO,MAAM,IAAI,YAAW,CAAA;AAC5B,eAAO,MAAM,MAAM,YAAW,CAAA"}
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+4
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export const onExit = () => () => { };
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export const load = () => { };
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export const unload = () => { };
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//# sourceMappingURL=browser.js.map
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+1
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{"version":3,"file":"browser.js","sourceRoot":"","sources":["../../src/browser.ts"],"names":[],"mappings":"AAMA,MAAM,CAAC,MAAM,MAAM,GAGD,GAAG,EAAE,CAAC,GAAG,EAAE,GAAE,CAAC,CAAA;AAChC,MAAM,CAAC,MAAM,IAAI,GAAG,GAAG,EAAE,GAAE,CAAC,CAAA;AAC5B,MAAM,CAAC,MAAM,MAAM,GAAG,GAAG,EAAE,GAAE,CAAC,CAAA","sourcesContent":["/**\n * This is a browser shim that provides the same functional interface\n * as the main node export, but it does nothing.\n * @module\n */\nimport type { Handler } from './index.js'\nexport const onExit: (\n cb: Handler,\n opts: { alwaysLast?: boolean }\n) => () => void = () => () => {}\nexport const load = () => {}\nexport const unload = () => {}\n"]}
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+48
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/// <reference types="node" />
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import { signals } from './signals.js';
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export { signals };
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/**
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* A function that takes an exit code and signal as arguments
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*
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* In the case of signal exits *only*, a return value of true
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* will indicate that the signal is being handled, and we should
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* not synthetically exit with the signal we received. Regardless
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* of the handler return value, the handler is unloaded when an
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* otherwise fatal signal is received, so you get exactly 1 shot
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* at it, unless you add another onExit handler at that point.
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*
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* In the case of numeric code exits, we may already have committed
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* to exiting the process, for example via a fatal exception or
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* unhandled promise rejection, so it is impossible to stop safely.
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*/
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export type Handler = (code: number | null | undefined, signal: NodeJS.Signals | null) => true | void;
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export declare const
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/**
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* Called when the process is exiting, whether via signal, explicit
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* exit, or running out of stuff to do.
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*
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* If the global process object is not suitable for instrumentation,
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* then this will be a no-op.
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*
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* Returns a function that may be used to unload signal-exit.
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*/
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onExit: (cb: Handler, opts?: {
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alwaysLast?: boolean | undefined;
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} | undefined) => () => void,
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/**
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* Load the listeners. Likely you never need to call this, unless
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* doing a rather deep integration with signal-exit functionality.
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* Mostly exposed for the benefit of testing.
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*
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* @internal
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*/
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load: () => void,
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/**
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* Unload the listeners. Likely you never need to call this, unless
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* doing a rather deep integration with signal-exit functionality.
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* Mostly exposed for the benefit of testing.
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*
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* @internal
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*/
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unload: () => void;
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//# sourceMappingURL=index.d.ts.map
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+1
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{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAIA,OAAO,EAAE,OAAO,EAAE,MAAM,cAAc,CAAA;AACtC,OAAO,EAAE,OAAO,EAAE,CAAA;AAuBlB;;;;;;;;;;;;;GAaG;AACH,MAAM,MAAM,OAAO,GAAG,CACpB,IAAI,EAAE,MAAM,GAAG,IAAI,GAAG,SAAS,EAC/B,MAAM,EAAE,MAAM,CAAC,OAAO,GAAG,IAAI,KAC1B,IAAI,GAAG,IAAI,CAAA;AA8QhB,eAAO;AACL;;;;;;;;GAQG;AACH,MAAM,OAzMO,OAAO;;wBAPiD,IAAI;AAkNzE;;;;;;GAMG;AACH,IAAI;AAEJ;;;;;;GAMG;AACH,MAAM,YAGP,CAAA"}
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+275
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// Note: since nyc uses this module to output coverage, any lines
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// that are in the direct sync flow of nyc's outputCoverage are
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// ignored, since we can never get coverage for them.
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// grab a reference to node's real process object right away
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import { signals } from './signals.js';
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export { signals };
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const processOk = (process) => !!process &&
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typeof process === 'object' &&
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typeof process.removeListener === 'function' &&
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typeof process.emit === 'function' &&
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typeof process.reallyExit === 'function' &&
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typeof process.listeners === 'function' &&
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typeof process.kill === 'function' &&
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typeof process.pid === 'number' &&
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typeof process.on === 'function';
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const kExitEmitter = Symbol.for('signal-exit emitter');
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const global = globalThis;
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const ObjectDefineProperty = Object.defineProperty.bind(Object);
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// teeny special purpose ee
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class Emitter {
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emitted = {
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afterExit: false,
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exit: false,
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};
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listeners = {
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afterExit: [],
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exit: [],
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};
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count = 0;
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id = Math.random();
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constructor() {
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if (global[kExitEmitter]) {
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return global[kExitEmitter];
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}
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ObjectDefineProperty(global, kExitEmitter, {
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value: this,
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writable: false,
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enumerable: false,
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configurable: false,
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});
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}
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on(ev, fn) {
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this.listeners[ev].push(fn);
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}
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removeListener(ev, fn) {
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const list = this.listeners[ev];
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const i = list.indexOf(fn);
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/* c8 ignore start */
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if (i === -1) {
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return;
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}
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/* c8 ignore stop */
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if (i === 0 && list.length === 1) {
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list.length = 0;
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}
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else {
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list.splice(i, 1);
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}
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}
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emit(ev, code, signal) {
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if (this.emitted[ev]) {
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return false;
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}
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this.emitted[ev] = true;
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let ret = false;
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for (const fn of this.listeners[ev]) {
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ret = fn(code, signal) === true || ret;
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}
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if (ev === 'exit') {
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ret = this.emit('afterExit', code, signal) || ret;
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}
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return ret;
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}
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}
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class SignalExitBase {
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}
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const signalExitWrap = (handler) => {
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return {
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onExit(cb, opts) {
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return handler.onExit(cb, opts);
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},
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load() {
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return handler.load();
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},
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unload() {
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return handler.unload();
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},
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};
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};
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class SignalExitFallback extends SignalExitBase {
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onExit() {
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return () => { };
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}
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load() { }
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unload() { }
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}
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class SignalExit extends SignalExitBase {
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// "SIGHUP" throws an `ENOSYS` error on Windows,
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// so use a supported signal instead
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/* c8 ignore start */
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#hupSig = process.platform === 'win32' ? 'SIGINT' : 'SIGHUP';
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/* c8 ignore stop */
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#emitter = new Emitter();
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#process;
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#originalProcessEmit;
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#originalProcessReallyExit;
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#sigListeners = {};
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#loaded = false;
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constructor(process) {
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super();
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this.#process = process;
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// { <signal>: <listener fn>, ... }
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this.#sigListeners = {};
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for (const sig of signals) {
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this.#sigListeners[sig] = () => {
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// If there are no other listeners, an exit is coming!
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// Simplest way: remove us and then re-send the signal.
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// We know that this will kill the process, so we can
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// safely emit now.
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const listeners = this.#process.listeners(sig);
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let { count } = this.#emitter;
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// This is a workaround for the fact that signal-exit v3 and signal
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// exit v4 are not aware of each other, and each will attempt to let
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// the other handle it, so neither of them do. To correct this, we
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// detect if we're the only handler *except* for previous versions
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// of signal-exit, and increment by the count of listeners it has
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// created.
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/* c8 ignore start */
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const p = process;
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if (typeof p.__signal_exit_emitter__ === 'object' &&
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typeof p.__signal_exit_emitter__.count === 'number') {
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count += p.__signal_exit_emitter__.count;
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}
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/* c8 ignore stop */
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if (listeners.length === count) {
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this.unload();
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const ret = this.#emitter.emit('exit', null, sig);
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/* c8 ignore start */
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const s = sig === 'SIGHUP' ? this.#hupSig : sig;
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if (!ret)
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process.kill(process.pid, s);
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/* c8 ignore stop */
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}
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};
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}
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this.#originalProcessReallyExit = process.reallyExit;
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this.#originalProcessEmit = process.emit;
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}
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onExit(cb, opts) {
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/* c8 ignore start */
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if (!processOk(this.#process)) {
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return () => { };
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}
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/* c8 ignore stop */
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if (this.#loaded === false) {
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this.load();
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}
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const ev = opts?.alwaysLast ? 'afterExit' : 'exit';
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this.#emitter.on(ev, cb);
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return () => {
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this.#emitter.removeListener(ev, cb);
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if (this.#emitter.listeners['exit'].length === 0 &&
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this.#emitter.listeners['afterExit'].length === 0) {
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this.unload();
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}
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};
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}
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load() {
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if (this.#loaded) {
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return;
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}
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this.#loaded = true;
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// This is the number of onSignalExit's that are in play.
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// It's important so that we can count the correct number of
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// listeners on signals, and don't wait for the other one to
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// handle it instead of us.
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this.#emitter.count += 1;
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for (const sig of signals) {
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try {
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const fn = this.#sigListeners[sig];
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if (fn)
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this.#process.on(sig, fn);
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}
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catch (_) { }
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}
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this.#process.emit = (ev, ...a) => {
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return this.#processEmit(ev, ...a);
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};
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this.#process.reallyExit = (code) => {
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return this.#processReallyExit(code);
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};
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}
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unload() {
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if (!this.#loaded) {
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return;
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}
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this.#loaded = false;
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signals.forEach(sig => {
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const listener = this.#sigListeners[sig];
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/* c8 ignore start */
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if (!listener) {
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throw new Error('Listener not defined for signal: ' + sig);
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}
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/* c8 ignore stop */
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try {
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this.#process.removeListener(sig, listener);
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/* c8 ignore start */
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}
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catch (_) { }
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/* c8 ignore stop */
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});
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this.#process.emit = this.#originalProcessEmit;
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this.#process.reallyExit = this.#originalProcessReallyExit;
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this.#emitter.count -= 1;
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}
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#processReallyExit(code) {
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/* c8 ignore start */
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if (!processOk(this.#process)) {
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return 0;
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}
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this.#process.exitCode = code || 0;
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/* c8 ignore stop */
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this.#emitter.emit('exit', this.#process.exitCode, null);
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return this.#originalProcessReallyExit.call(this.#process, this.#process.exitCode);
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}
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#processEmit(ev, ...args) {
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const og = this.#originalProcessEmit;
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if (ev === 'exit' && processOk(this.#process)) {
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if (typeof args[0] === 'number') {
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this.#process.exitCode = args[0];
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/* c8 ignore start */
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}
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/* c8 ignore start */
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const ret = og.call(this.#process, ev, ...args);
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/* c8 ignore start */
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this.#emitter.emit('exit', this.#process.exitCode, null);
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/* c8 ignore stop */
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return ret;
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}
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else {
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return og.call(this.#process, ev, ...args);
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}
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}
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}
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const process = globalThis.process;
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// wrap so that we call the method on the actual handler, without
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// exporting it directly.
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export const {
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/**
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* Called when the process is exiting, whether via signal, explicit
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* exit, or running out of stuff to do.
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*
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* If the global process object is not suitable for instrumentation,
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* then this will be a no-op.
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*
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* Returns a function that may be used to unload signal-exit.
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*/
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onExit,
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/**
|
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* Load the listeners. Likely you never need to call this, unless
|
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* doing a rather deep integration with signal-exit functionality.
|
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* Mostly exposed for the benefit of testing.
|
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*
|
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* @internal
|
||||
*/
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||||
load,
|
||||
/**
|
||||
* Unload the listeners. Likely you never need to call this, unless
|
||||
* doing a rather deep integration with signal-exit functionality.
|
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* Mostly exposed for the benefit of testing.
|
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*
|
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* @internal
|
||||
*/
|
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unload, } = signalExitWrap(processOk(process) ? new SignalExit(process) : new SignalExitFallback());
|
||||
//# sourceMappingURL=index.js.map
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||||
+1
@@ -0,0 +1 @@
|
||||
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ine truncated
|
||||
+3
@@ -0,0 +1,3 @@
|
||||
{
|
||||
"type": "module"
|
||||
}
|
||||
+29
@@ -0,0 +1,29 @@
|
||||
/// <reference types="node" />
|
||||
/**
|
||||
* This is not the set of all possible signals.
|
||||
*
|
||||
* It IS, however, the set of all signals that trigger
|
||||
* an exit on either Linux or BSD systems. Linux is a
|
||||
* superset of the signal names supported on BSD, and
|
||||
* the unknown signals just fail to register, so we can
|
||||
* catch that easily enough.
|
||||
*
|
||||
* Windows signals are a different set, since there are
|
||||
* signals that terminate Windows processes, but don't
|
||||
* terminate (or don't even exist) on Posix systems.
|
||||
*
|
||||
* Don't bother with SIGKILL. It's uncatchable, which
|
||||
* means that we can't fire any callbacks anyway.
|
||||
*
|
||||
* If a user does happen to register a handler on a non-
|
||||
* fatal signal like SIGWINCH or something, and then
|
||||
* exit, it'll end up firing `process.emit('exit')`, so
|
||||
* the handler will be fired anyway.
|
||||
*
|
||||
* SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
|
||||
* artificially, inherently leave the process in a
|
||||
* state from which it is not safe to try and enter JS
|
||||
* listeners.
|
||||
*/
|
||||
export declare const signals: NodeJS.Signals[];
|
||||
//# sourceMappingURL=signals.d.ts.map
|
||||
+1
@@ -0,0 +1 @@
|
||||
{"version":3,"file":"signals.d.ts","sourceRoot":"","sources":["../../src/signals.ts"],"names":[],"mappings":";AAAA;;;;;;;;;;;;;;;;;;;;;;;;;GAyBG;AACH,eAAO,MAAM,OAAO,EAAE,MAAM,CAAC,OAAO,EAAO,CAAA"}
|
||||
+39
@@ -0,0 +1,39 @@
|
||||
/**
|
||||
* This is not the set of all possible signals.
|
||||
*
|
||||
* It IS, however, the set of all signals that trigger
|
||||
* an exit on either Linux or BSD systems. Linux is a
|
||||
* superset of the signal names supported on BSD, and
|
||||
* the unknown signals just fail to register, so we can
|
||||
* catch that easily enough.
|
||||
*
|
||||
* Windows signals are a different set, since there are
|
||||
* signals that terminate Windows processes, but don't
|
||||
* terminate (or don't even exist) on Posix systems.
|
||||
*
|
||||
* Don't bother with SIGKILL. It's uncatchable, which
|
||||
* means that we can't fire any callbacks anyway.
|
||||
*
|
||||
* If a user does happen to register a handler on a non-
|
||||
* fatal signal like SIGWINCH or something, and then
|
||||
* exit, it'll end up firing `process.emit('exit')`, so
|
||||
* the handler will be fired anyway.
|
||||
*
|
||||
* SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
|
||||
* artificially, inherently leave the process in a
|
||||
* state from which it is not safe to try and enter JS
|
||||
* listeners.
|
||||
*/
|
||||
export const signals = [];
|
||||
signals.push('SIGHUP', 'SIGINT', 'SIGTERM');
|
||||
if (process.platform !== 'win32') {
|
||||
signals.push('SIGALRM', 'SIGABRT', 'SIGVTALRM', 'SIGXCPU', 'SIGXFSZ', 'SIGUSR2', 'SIGTRAP', 'SIGSYS', 'SIGQUIT', 'SIGIOT'
|
||||
// should detect profiler and enable/disable accordingly.
|
||||
// see #21
|
||||
// 'SIGPROF'
|
||||
);
|
||||
}
|
||||
if (process.platform === 'linux') {
|
||||
signals.push('SIGIO', 'SIGPOLL', 'SIGPWR', 'SIGSTKFLT');
|
||||
}
|
||||
//# sourceMappingURL=signals.js.map
|
||||
+1
@@ -0,0 +1 @@
|
||||
{"version":3,"file":"signals.js","sourceRoot":"","sources":["../../src/signals.ts"],"names":[],"mappings":"AAAA;;;;;;;;;;;;;;;;;;;;;;;;;GAyBG;AACH,MAAM,CAAC,MAAM,OAAO,GAAqB,EAAE,CAAA;AAC3C,OAAO,CAAC,IAAI,CAAC,QAAQ,EAAE,QAAQ,EAAE,SAAS,CAAC,CAAA;AAE3C,IAAI,OAAO,CAAC,QAAQ,KAAK,OAAO,EAAE;IAChC,OAAO,CAAC,IAAI,CACV,SAAS,EACT,SAAS,EACT,WAAW,EACX,SAAS,EACT,SAAS,EACT,SAAS,EACT,SAAS,EACT,QAAQ,EACR,SAAS,EACT,QAAQ;IACR,yDAAyD;IACzD,UAAU;IACV,YAAY;KACb,CAAA;CACF;AAED,IAAI,OAAO,CAAC,QAAQ,KAAK,OAAO,EAAE;IAChC,OAAO,CAAC,IAAI,CAAC,OAAO,EAAE,SAAS,EAAE,QAAQ,EAAE,WAAW,CAAC,CAAA;CACxD","sourcesContent":["/**\n * This is not the set of all possible signals.\n *\n * It IS, however, the set of all signals that trigger\n * an exit on either Linux or BSD systems. Linux is a\n * superset of the signal names supported on BSD, and\n * the unknown signals just fail to register, so we can\n * catch that easily enough.\n *\n * Windows signals are a different set, since there are\n * signals that terminate Windows processes, but don't\n * terminate (or don't even exist) on Posix systems.\n *\n * Don't bother with SIGKILL. It's uncatchable, which\n * means that we can't fire any callbacks anyway.\n *\n * If a user does happen to register a handler on a non-\n * fatal signal like SIGWINCH or something, and then\n * exit, it'll end up firing `process.emit('exit')`, so\n * the handler will be fired anyway.\n *\n * SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised\n * artificially, inherently leave the process in a\n * state from which it is not safe to try and enter JS\n * listeners.\n */\nexport const signals: NodeJS.Signals[] = []\nsignals.push('SIGHUP', 'SIGINT', 'SIGTERM')\n\nif (process.platform !== 'win32') {\n signals.push(\n 'SIGALRM',\n 'SIGABRT',\n 'SIGVTALRM',\n 'SIGXCPU',\n 'SIGXFSZ',\n 'SIGUSR2',\n 'SIGTRAP',\n 'SIGSYS',\n 'SIGQUIT',\n 'SIGIOT'\n // should detect profiler and enable/disable accordingly.\n // see #21\n // 'SIGPROF'\n )\n}\n\nif (process.platform === 'linux') {\n signals.push('SIGIO', 'SIGPOLL', 'SIGPWR', 'SIGSTKFLT')\n}\n"]}
|
||||
Reference in new issue
Block a user