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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';
/*
* The purpose of this test is to make sure that when forking a process,
* sending a fd representing a UDP socket to the child and sending messages
* to this endpoint, these messages are distributed to the parent and the
* child process.
*/
const common = require('../common');
if (common.isWindows)
common.skip('Sending dgram sockets to child processes is not supported');
const dgram = require('dgram');
const fork = require('child_process').fork;
const assert = require('assert');
if (process.argv[2] === 'child') {
let childServer;
process.once('message', (msg, clusterServer) => {
childServer = clusterServer;
childServer.once('message', () => {
process.send('gotMessage');
childServer.close();
});
process.send('handleReceived');
});
} else {
const parentServer = dgram.createSocket('udp4');
const client = dgram.createSocket('udp4');
const child = fork(__filename, ['child']);
const msg = Buffer.from('Some bytes');
let childGotMessage = false;
let parentGotMessage = false;
parentServer.once('message', (msg, rinfo) => {
parentGotMessage = true;
parentServer.close();
});
parentServer.on('listening', () => {
child.send('server', parentServer);
child.on('message', (msg) => {
if (msg === 'gotMessage') {
childGotMessage = true;
} else if (msg === 'handleReceived') {
sendMessages();
}
});
});
function sendMessages() {
const serverPort = parentServer.address().port;
const timer = setInterval(() => {
/*
* Both the parent and the child got at least one message,
* test passed, clean up everything.
*/
if (parentGotMessage && childGotMessage) {
clearInterval(timer);
client.close();
} else {
client.send(
msg,
0,
msg.length,
serverPort,
'127.0.0.1',
(err) => {
assert.ifError(err);
}
);
}
}, 1);
}
parentServer.bind(0, '127.0.0.1');
process.once('exit', () => {
assert(parentGotMessage);
assert(childGotMessage);
});
}
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