csrc/node-v0.10.24/test/simple/test-signal-handler.js

// Copyright Joyent, Inc. and other Node contributors.
//
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// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
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// 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.
//
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// 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,
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// USE OR OTHER DEALINGS IN THE SOFTWARE.


// SIGUSR1 and SIGHUP are not supported on Windows
if (process.platform === 'win32') {
  process.exit(0);
}

var common = require('../common');
var assert = require('assert');

console.log('process.pid: ' + process.pid);

var first = 0,
    second = 0;

var sighup = false;

process.on('SIGUSR1', function() {
  console.log('Interrupted by SIGUSR1');
  first += 1;
});

process.on('SIGUSR1', function() {
  second += 1;
  setTimeout(function() {
    console.log('End.');
    process.exit(0);
  }, 5);
});

var i = 0;
setInterval(function() {
  console.log('running process...' + ++i);

  if (i == 5) {
    process.kill(process.pid, 'SIGUSR1');
  }
}, 1);

// Test on condition where a watcher for SIGNAL
// has been previously registered, and `process.listeners(SIGNAL).length === 1`
process.on('SIGHUP', function() {});
process.removeAllListeners('SIGHUP');
process.on('SIGHUP', function() { sighup = true });
process.kill(process.pid, 'SIGHUP');

process.on('exit', function() {
  assert.equal(1, first);
  assert.equal(1, second);
  assert.equal(true, sighup);
});