| 'use strict'; |
| const common = require('../common'); |
| |
| // This test should fail because at present `cluster` does not know how to share |
| // a socket when `worker1` binds with `port: 0`, and others try to bind to the |
| // assigned port number from `worker1` |
| // |
| // *Note*: since this is a `known_issue` we try to swallow all errors except |
| // the one we are interested in |
| |
| const assert = require('assert'); |
| const cluster = require('cluster'); |
| const dgram = require('dgram'); |
| const BYE = 'bye'; |
| |
| if (cluster.isMaster) { |
| const worker1 = cluster.fork(); |
| |
| // Verify that Windows doesn't support this scenario |
| worker1.on('error', (err) => { |
| if (err.code === 'ENOTSUP') throw err; |
| }); |
| |
| worker1.on('message', (msg) => { |
| if (typeof msg !== 'object') process.exit(0); |
| if (msg.message !== 'success') process.exit(0); |
| if (typeof msg.port1 !== 'number') process.exit(0); |
| |
| const worker2 = cluster.fork({ PRT1: msg.port1 }); |
| worker2.on('message', () => process.exit(0)); |
| worker2.on('exit', (code, signal) => { |
| // This is the droid we are looking for |
| assert.strictEqual(code, 0); |
| assert.strictEqual(signal, null); |
| }); |
| |
| // cleanup anyway |
| process.on('exit', () => { |
| worker1.send(BYE); |
| worker2.send(BYE); |
| }); |
| }); |
| // end master code |
| } else { |
| // worker code |
| process.on('message', (msg) => msg === BYE && process.exit(0)); |
| |
| // First worker will bind to '0', second will try the assigned port and fail |
| const PRT1 = process.env.PRT1 || 0; |
| const socket1 = dgram.createSocket('udp4', () => {}); |
| socket1.on('error', PRT1 === 0 ? () => {} : assert.fail); |
| socket1.bind( |
| { address: common.localhostIPv4, port: PRT1, exclusive: false }, |
| () => process.send({ message: 'success', port1: socket1.address().port }) |
| ); |
| } |