nodejs/test/parallel/test-child-process-fork-get...

113 lines
3.4 KiB
JavaScript

// 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');
const count = 12;
if (process.argv[2] === 'child') {
const sockets = [];
process.on('message', common.mustCall((m, socket) => {
function sendClosed(id) {
process.send({ id: id, status: 'closed' });
}
if (m.cmd === 'new') {
assert(socket);
assert(socket instanceof net.Socket, 'should be a net.Socket');
sockets.push(socket);
}
if (m.cmd === 'close') {
assert.strictEqual(socket, undefined);
if (sockets[m.id].destroyed) {
// Workaround for https://github.com/nodejs/node/issues/2610
sendClosed(m.id);
// End of workaround. When bug is fixed, this code can be used instead:
// throw new Error('socket destroyed unexpectedly!');
} else {
sockets[m.id].once('close', sendClosed.bind(null, m.id));
sockets[m.id].destroy();
}
}
}));
} else {
const child = fork(process.argv[1], ['child']);
child.on('exit', common.mustCall((code, signal) => {
if (!subprocessKilled) {
assert.fail('subprocess died unexpectedly! ' +
`code: ${code} signal: ${signal}`);
}
}));
const server = net.createServer();
const sockets = [];
server.on('connection', common.mustCall((socket) => {
child.send({ cmd: 'new' }, socket);
sockets.push(socket);
if (sockets.length === count) {
closeSockets(0);
}
}, count));
const onClose = common.mustCall(count);
server.on('listening', common.mustCall(() => {
let j = count;
while (j--) {
const client = net.connect(server.address().port, '127.0.0.1');
client.on('close', onClose);
}
}));
let subprocessKilled = false;
function closeSockets(i) {
if (i === count) {
subprocessKilled = true;
server.close();
child.kill();
return;
}
child.once('message', common.mustCall((m) => {
assert.strictEqual(m.status, 'closed');
server.getConnections(common.mustCall((err, num) => {
assert.ifError(err);
assert.strictEqual(num, count - (i + 1));
closeSockets(i + 1);
}));
}));
child.send({ id: i, cmd: 'close' });
}
server.on('close', common.mustCall());
server.listen(0, '127.0.0.1');
}