| // 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. |
| |
| var common = require('../common'); |
| var assert = require('assert'); |
| var http = require('http'); |
| var net = require('net'); |
| var PORT = common.PORT; |
| var spawn = require('child_process').spawn; |
| var cluster = require('cluster'); |
| |
| console.error('Cluster listen fd test', process.argv.slice(2)); |
| |
| if (process.platform === 'win32') { |
| console.error('This test is disabled on windows.'); |
| return; |
| } |
| |
| switch (process.argv[2]) { |
| case 'master': return master(); |
| case 'worker': return worker(); |
| case 'parent': return parent(); |
| default: return test(); |
| } |
| |
| // spawn the parent, and listen for it to tell us the pid of the cluster. |
| // WARNING: This is an example of listening on some arbitrary FD number |
| // that has already been bound elsewhere in advance. However, binding |
| // server handles to stdio fd's is NOT a good or reliable way to do |
| // concurrency in HTTP servers! Use the cluster module, or if you want |
| // a more low-level approach, use child process IPC manually. |
| function test() { |
| var parent = spawn(process.execPath, [__filename, 'parent'], { |
| stdio: [ 0, 'pipe', 2 ] |
| }); |
| var json = ''; |
| parent.stdout.on('data', function(c) { |
| json += c.toString(); |
| if (json.indexOf('\n') !== -1) next(); |
| }); |
| function next() { |
| console.error('output from parent = %s', json); |
| var cluster = JSON.parse(json); |
| // now make sure that we can request to the worker, then kill it. |
| http.get({ |
| server: 'localhost', |
| port: PORT, |
| path: '/', |
| }).on('response', function (res) { |
| var s = ''; |
| res.on('data', function(c) { |
| s += c.toString(); |
| }); |
| res.on('end', function() { |
| // kill the worker before we start doing asserts. |
| // it's really annoying when tests leave orphans! |
| parent.kill(); |
| process.kill(cluster.master, 'SIGKILL'); |
| |
| assert.equal(s, 'hello from worker\n'); |
| assert.equal(res.statusCode, 200); |
| console.log('ok'); |
| }); |
| }) |
| } |
| } |
| |
| function parent() { |
| console.error('about to listen in parent'); |
| var server = net.createServer(function(conn) { |
| console.error('connection on parent'); |
| conn.end('hello from parent\n'); |
| }).listen(PORT, function() { |
| console.error('server listening on %d', PORT); |
| |
| var spawn = require('child_process').spawn; |
| var master = spawn(process.execPath, [__filename, 'master'], { |
| stdio: [ 0, 1, 2, server._handle ], |
| detached: true |
| }); |
| |
| // Now close the parent, so that the master is the only thing |
| // referencing that handle. Note that connections will still |
| // be accepted, because the master has the fd open. |
| server.close(); |
| |
| master.on('exit', function(code) { |
| console.error('master exited', code); |
| }); |
| |
| master.on('close', function() { |
| console.error('master closed'); |
| }); |
| console.error('master spawned'); |
| }); |
| } |
| |
| function master() { |
| console.error('in master, spawning worker'); |
| cluster.setupMaster({ |
| args: [ 'worker' ] |
| }); |
| var worker = cluster.fork(); |
| console.log('%j\n', { master: process.pid, worker: worker.pid }); |
| } |
| |
| |
| function worker() { |
| console.error('worker, about to create server and listen on fd=3'); |
| // start a server on fd=3 |
| http.createServer(function(req, res) { |
| console.error('request on worker'); |
| console.error('%s %s', req.method, req.url, req.headers); |
| res.end('hello from worker\n'); |
| }).listen({ fd: 3 }, function() { |
| console.error('worker listening on fd=3'); |
| }); |
| } |