84 lines
3.1 KiB
JavaScript
84 lines
3.1 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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const common = require('../common');
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// Test that errors propagated from cluster workers are properly
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// received in their master. Creates an EADDRINUSE condition by forking
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// a process in child cluster and propagates the error to the master.
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const assert = require('assert');
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const cluster = require('cluster');
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const fork = require('child_process').fork;
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const net = require('net');
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if (cluster.isMaster && process.argv.length !== 3) {
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// cluster.isMaster
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const tmpdir = require('../common/tmpdir');
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tmpdir.refresh();
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const PIPE_NAME = common.PIPE;
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const worker = cluster.fork({ PIPE_NAME });
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// Makes sure master is able to fork the worker
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cluster.on('fork', common.mustCall());
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// Makes sure the worker is ready
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worker.on('online', common.mustCall());
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worker.on('message', common.mustCall(function(err) {
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// Disconnect first, so that we will not leave zombies
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worker.disconnect();
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assert.strictEqual(err.code, 'EADDRINUSE');
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}));
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} else if (process.argv.length !== 3) {
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// cluster.worker
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const PIPE_NAME = process.env.PIPE_NAME;
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const cp = fork(__filename, [PIPE_NAME], { stdio: 'inherit' });
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// Message from the child indicates it's ready and listening
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cp.on('message', common.mustCall(function() {
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const server = net.createServer().listen(PIPE_NAME, function() {
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// Message child process so that it can exit
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cp.send('end');
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// Inform master about the unexpected situation
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process.send('PIPE should have been in use.');
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});
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server.on('error', function(err) {
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// Message to child process tells it to exit
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cp.send('end');
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// Propagate error to parent
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process.send(err);
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});
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}));
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} else if (process.argv.length === 3) {
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// Child process (of cluster.worker)
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const PIPE_NAME = process.argv[2];
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const server = net.createServer().listen(PIPE_NAME, common.mustCall(() => {
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process.send('listening');
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}));
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process.once('message', common.mustCall(() => server.close()));
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} else {
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assert.fail('Impossible state');
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}
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