72 lines
1.2 KiB
JavaScript
72 lines
1.2 KiB
JavaScript
/*!
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* parent.js - worker processes for bcoin
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* Copyright (c) 2014-2017, Christopher Jeffrey (MIT License).
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* https://github.com/bcoin-org/bcoin
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*/
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'use strict';
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const EventEmitter = require('events');
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const util = require('../utils/util');
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/**
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* Represents the parent process.
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* @alias module:workers.Parent
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* @constructor
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*/
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function Parent() {
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if (!(this instanceof Parent))
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return new Parent();
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EventEmitter.call(this);
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this.init();
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}
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util.inherits(Parent, EventEmitter);
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/**
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* Initialize master (node.js).
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* @private
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*/
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Parent.prototype.init = function init() {
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process.stdin.on('data', (data) => {
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this.emit('data', data);
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});
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// Nowhere to send these errors:
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process.stdin.on('error', () => {});
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process.stdout.on('error', () => {});
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process.stderr.on('error', () => {});
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process.on('uncaughtException', (err) => {
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this.emit('exception', err);
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});
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};
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/**
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* Send data to parent process.
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* @param {Buffer} data
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* @returns {Boolean}
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*/
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Parent.prototype.write = function write(data) {
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return process.stdout.write(data);
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};
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/**
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* Destroy the parent process.
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*/
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Parent.prototype.destroy = function destroy() {
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return process.exit(0);
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};
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/*
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* Expose
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*/
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module.exports = Parent;
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