File: test-cluster-uncaught-exception.js

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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.

// Installing a custom uncaughtException handler should override the default
// one that the cluster module installs.
// https://github.com/joyent/node/issues/2556

var common = require('../common');
var assert = require('assert');
var cluster = require('cluster');
var fork = require('child_process').fork;

var MAGIC_EXIT_CODE = 42;

var isTestRunner = process.argv[2] != 'child';

if (isTestRunner) {
  var exitCode = -1;

  process.on('exit', function() {
    assert.equal(exitCode, MAGIC_EXIT_CODE);
  });

  var master = fork(__filename, ['child']);
  master.on('exit', function(code) {
    exitCode = code;
  });
}
else if (cluster.isMaster) {
  process.on('uncaughtException', function() {
    process.nextTick(function() {
      process.exit(MAGIC_EXIT_CODE);
    });
  });

  cluster.fork();
  throw new Error('kill master');
}
else { // worker
  process.exit();
}