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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 fork = require('child_process').fork;
const net = require('net');
// child
if (process.argv[2] === 'child') {
// Check that the 'disconnect' event is deferred to the next event loop tick.
const disconnect = process.disconnect;
process.disconnect = function() {
disconnect.apply(this, arguments);
// If the event is emitted synchronously, we're too late by now.
process.once('disconnect', common.mustCall(disconnectIsNotAsync));
// The funky function name makes it show up legible in mustCall errors.
function disconnectIsNotAsync() {}
};
const server = net.createServer();
server.on('connection', function(socket) {
socket.resume();
process.on('disconnect', function() {
socket.end((process.connected).toString());
});
// When the socket is closed, we will close the server
// allowing the process to self terminate
socket.on('end', function() {
server.close();
});
socket.write('ready');
});
// When the server is ready tell parent
server.on('listening', function() {
process.send({ msg: 'ready', port: server.address().port });
});
server.listen(0);
} else {
// testcase
const child = fork(process.argv[1], ['child']);
let childFlag = false;
let parentFlag = false;
// When calling .disconnect the event should emit
// and the disconnected flag should be true.
child.on('disconnect', common.mustCall(function() {
parentFlag = child.connected;
}));
// The process should also self terminate without using signals
child.on('exit', common.mustCall());
// When child is listening
child.on('message', function(obj) {
if (obj && obj.msg === 'ready') {
// Connect to child using TCP to know if disconnect was emitted
const socket = net.connect(obj.port);
socket.on('data', function(data) {
data = data.toString();
// Ready to be disconnected
if (data === 'ready') {
child.disconnect();
assert.throws(
child.disconnect.bind(child),
{
code: 'ERR_IPC_DISCONNECTED'
});
return;
}
// 'disconnect' is emitted
childFlag = (data === 'true');
});
}
});
process.on('exit', function() {
assert.strictEqual(childFlag, false);
assert.strictEqual(parentFlag, false);
});
}