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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
const assert = require('assert');
const cluster = require('cluster');
const net = require('net');
if (cluster.isWorker) {
net.createServer((socket) => {
socket.end('echo');
}).listen(0, '127.0.0.1');
net.createServer((socket) => {
socket.end('echo');
}).listen(0, '127.0.0.1');
} else if (cluster.isMaster) {
const servers = 2;
const serverPorts = new Set();
// test a single TCP server
const testConnection = (port, cb) => {
const socket = net.connect(port, '127.0.0.1', () => {
// buffer result
let result = '';
socket.on('data', (chunk) => { result += chunk; });
// check result
socket.on('end', common.mustCall(() => {
cb(result === 'echo');
serverPorts.delete(port);
}));
});
};
// test both servers created in the cluster
const testCluster = (cb) => {
let done = 0;
const portsArray = Array.from(serverPorts);
for (let i = 0; i < servers; i++) {
testConnection(portsArray[i], (success) => {
assert.ok(success);
done += 1;
if (done === servers) {
cb();
}
});
}
};
// start two workers and execute callback when both is listening
const startCluster = (cb) => {
const workers = 8;
let online = 0;
for (let i = 0, l = workers; i < l; i++) {
cluster.fork().on('listening', common.mustCall((address) => {
serverPorts.add(address.port);
online += 1;
if (online === workers * servers) {
cb();
}
}, servers));
}
};
const test = (again) => {
//1. start cluster
startCluster(common.mustCall(() => {
//2. test cluster
testCluster(common.mustCall(() => {
//3. disconnect cluster
cluster.disconnect(common.mustCall(() => {
// run test again to confirm cleanup
if (again) {
test();
}
}));
}));
}));
};
test(true);
}
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