| // 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. |
| |
| // Make sure that sync writes to stderr get processed before exiting. |
| |
| var common = require('../common.js'); |
| var assert = require('assert'); |
| |
| function parent() { |
| var spawn = require('child_process').spawn; |
| var assert = require('assert'); |
| var i = 0; |
| children.forEach(function(_, c) { |
| var child = spawn(process.execPath, [__filename, '' + c]); |
| var err = ''; |
| |
| child.stderr.on('data', function(c) { |
| err += c; |
| }); |
| |
| child.on('close', function() { |
| assert.equal(err, 'child ' + c + '\nfoo\nbar\nbaz\n'); |
| console.log('ok %d child #%d', ++i, c); |
| if (i === children.length) |
| console.log('1..' + i); |
| }); |
| }); |
| } |
| |
| function child0() { |
| // Just a very simple wrapper around TTY(2) |
| // Essentially the same as stderr, but without all the net stuff. |
| var Writable = require('stream').Writable; |
| var util = require('util'); |
| |
| // a lowlevel stderr writer |
| var TTY = process.binding('tty_wrap').TTY; |
| var handle = new TTY(2, false); |
| |
| util.inherits(W, Writable); |
| |
| function W(opts) { |
| Writable.call(this, opts); |
| } |
| |
| W.prototype._write = function(chunk, encoding, cb) { |
| var req = handle.writeUtf8String(chunk.toString() + '\n'); |
| // here's the problem. |
| // it needs to tell the Writable machinery that it's ok to write |
| // more, but that the current buffer length is handle.writeQueueSize |
| req.oncomplete = afterWrite |
| if (req.writeQueueSize === 0) |
| req.cb = cb; |
| else |
| cb(); |
| } |
| function afterWrite(status, handle, req) { |
| if (req.cb) |
| req.cb(); |
| } |
| |
| var w = new W |
| w.write('child 0'); |
| w.write('foo'); |
| w.write('bar'); |
| w.write('baz'); |
| } |
| |
| // using console.error |
| function child1() { |
| console.error('child 1'); |
| console.error('foo'); |
| console.error('bar'); |
| console.error('baz'); |
| } |
| |
| // using process.stderr |
| function child2() { |
| process.stderr.write('child 2\n'); |
| process.stderr.write('foo\n'); |
| process.stderr.write('bar\n'); |
| process.stderr.write('baz\n'); |
| } |
| |
| // using a net socket |
| function child3() { |
| var net = require('net'); |
| var socket = new net.Socket({ fd: 2 }); |
| socket.write('child 3\n'); |
| socket.write('foo\n'); |
| socket.write('bar\n'); |
| socket.write('baz\n'); |
| } |
| |
| |
| function child4() { |
| console.error('child 4\nfoo\nbar\nbaz'); |
| } |
| |
| function child5() { |
| process.stderr.write('child 5\nfoo\nbar\nbaz\n'); |
| } |
| |
| var children = [ child0, child1, child2, child3, child4, child5 ]; |
| |
| if (!process.argv[2]) { |
| parent(); |
| } else { |
| children[process.argv[2]](); |
| // immediate process.exit to kill any waiting stuff. |
| process.exit(); |
| } |