@browserstack/testcafe/lib/cli/termination-handler.js

Automated browser testing for the modern web development stack.

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