40 lines
5.2 KiB
JavaScript
40 lines
5.2 KiB
JavaScript
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"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const events_1 = __importDefault(require("events"));
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const TERMINATION_TYPES = {
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sigint: 'sigint',
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sigbreak: 'sigbreak',
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shutdown: 'shutdown',
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};
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const TERMINATION_LEVEL_INCREASED_EVENT = 'termination-level-increased';
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class TerminationHandler extends events_1.default {
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constructor() {
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super();
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this.handledSignalsCount = {
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[TERMINATION_TYPES.sigint]: 0,
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[TERMINATION_TYPES.sigbreak]: 0,
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[TERMINATION_TYPES.shutdown]: 0,
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};
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this.terminationLevel = 0;
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this._setupHandlers();
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}
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_exitEventHandler(terminationType) {
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this.handledSignalsCount[terminationType]++;
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if (this.handledSignalsCount[terminationType] > this.terminationLevel) {
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this.terminationLevel = this.handledSignalsCount[terminationType];
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this.emit(TERMINATION_LEVEL_INCREASED_EVENT, this.terminationLevel);
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}
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}
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_setupHandlers() {
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process.on('SIGINT', () => this._exitEventHandler(TERMINATION_TYPES.sigint));
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process.on('SIGBREAK', () => this._exitEventHandler(TERMINATION_TYPES.sigbreak));
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process.on('message', message => message === 'shutdown' && this._exitEventHandler(TERMINATION_TYPES.shutdown));
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}
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}
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exports.default = TerminationHandler;
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TerminationHandler.TERMINATION_LEVEL_INCREASED_EVENT = TERMINATION_LEVEL_INCREASED_EVENT;
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module.exports = exports.default;
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