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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');
// Test that errors propagated from cluster workers are properly
// received in their primary. Creates an EADDRINUSE condition by forking
// a process in child cluster and propagates the error to the primary.
const assert = require('assert');
const cluster = require('cluster');
const fork = require('child_process').fork;
const net = require('net');
if (cluster.isPrimary && process.argv.length !== 3) {
// cluster.isPrimary
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const PIPE_NAME = common.PIPE;
const worker = cluster.fork({ PIPE_NAME });
// Makes sure primary is able to fork the worker
cluster.on('fork', common.mustCall());
// Makes sure the worker is ready
worker.on('online', common.mustCall());
worker.on('message', common.mustCall(function(err) {
// Disconnect first, so that we will not leave zombies
worker.disconnect();
assert.strictEqual(err.code, 'EADDRINUSE');
}));
} else if (process.argv.length !== 3) {
// cluster.worker
const PIPE_NAME = process.env.PIPE_NAME;
const cp = fork(__filename, [PIPE_NAME], { stdio: 'inherit' });
// Message from the child indicates it's ready and listening
cp.on('message', common.mustCall(function() {
const server = net.createServer().listen(PIPE_NAME, function() {
// Message child process so that it can exit
cp.send('end');
// Inform primary about the unexpected situation
process.send('PIPE should have been in use.');
});
server.on('error', function(err) {
// Message to child process tells it to exit
cp.send('end');
// Propagate error to primary
process.send(err);
});
}));
} else if (process.argv.length === 3) {
// Child process (of cluster.worker)
const PIPE_NAME = process.argv[2];
const server = net.createServer().listen(PIPE_NAME, common.mustCall(() => {
process.send('listening');
}));
process.once('message', common.mustCall(() => server.close()));
} else {
assert.fail('Impossible state');
}
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