From 6a68d646297b5264fc3c0672fc58dcbf64523bdc Mon Sep 17 00:00:00 2001 From: Trevor Norris Date: Sat, 25 Oct 2014 14:27:23 -0700 Subject: [PATCH 1/3] lint: fix whitespace issues Fixes: f6e5740 "path: resolve normalize drive letter to lower case" Signed-off-by: Trevor Norris --- lib/path.js | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/lib/path.js b/lib/path.js index fc5e650ce..6af430ec4 100644 --- a/lib/path.js +++ b/lib/path.js @@ -163,10 +163,11 @@ if (isWindows) { resolvedTail = normalizeArray(resolvedTail.split(/[\\\/]+/).filter(f), !resolvedAbsolute).join('\\'); - // If device is a drive letter, we'll normalize to lower case. - if (resolvedDevice && resolvedDevice.charAt(1) === ':') - resolvedDevice = resolvedDevice[0].toLowerCase() + - resolvedDevice.substr(1); + // If device is a drive letter, we'll normalize to lower case. + if (resolvedDevice && resolvedDevice.charAt(1) === ':') { + resolvedDevice = resolvedDevice[0].toLowerCase() + + resolvedDevice.substr(1); + } return (resolvedDevice + (resolvedAbsolute ? '\\' : '') + resolvedTail) || '.'; From 15aa47e2618a565aba0c1ca29ef63f269f26dc74 Mon Sep 17 00:00:00 2001 From: Vladimir Kurchatkin Date: Tue, 21 Oct 2014 13:00:37 +0400 Subject: [PATCH 2/3] docs: fix smalloc.dispose() example Also couple of additions about dispose and limitations of smalloc'ed objects. Fixes: https://github.com/joyent/node/pull/8625 Reviewed-by: Trevor Norris --- doc/api/smalloc.markdown | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/doc/api/smalloc.markdown b/doc/api/smalloc.markdown index e407bb19c..ff905714e 100644 --- a/doc/api/smalloc.markdown +++ b/doc/api/smalloc.markdown @@ -48,6 +48,10 @@ possible options are listed in `smalloc.Types`. Example usage: // { '0': 0, '1': 0.1, '2': 0.2 } +It is not possible to freeze, seal and prevent extensions of objects with +external data using `Object.freeze`, `Object.seal` and +`Object.preventExtensions` respectively. + ### smalloc.copyOnto(source, sourceStart, dest, destStart, copyLength); * `source` {Object} with external array allocation @@ -105,8 +109,10 @@ careful. Cryptic errors may arise in applications that are difficult to trace. smalloc.copyOnto(b, 2, a, 0, 2); // now results in: - // Error: source has no external array data + // RangeError: copy_length > source_length +After `dispose()` is called object still behaves as one with external data, for +example `smalloc.hasExternalData()` returns `true`. `dispose()` does not support Buffers, and will throw if passed. ### smalloc.hasExternalData(obj) From c2b4f4809b8c30537b08f2dc76f798ea7a225907 Mon Sep 17 00:00:00 2001 From: cjihrig Date: Fri, 17 Oct 2014 21:45:40 -0400 Subject: [PATCH 3/3] net: add pauseOnConnect option to createServer() Currently when a server receives a new connection the underlying socket handle begins reading data immediately. This causes problems when sockets are passed between processes, as data can be read by the first process and thus never read by the second process. This commit allows sockets that are constructed with a handle to be paused initially. PR-URL: https://github.com/joyent/node/pull/8576 Fixes: https://github.com/joyent/node/issues/7905 Fixes: https://github.com/joyent/node/issues/7784 Reviewed-by: Trevor Norris --- doc/api/net.markdown | 9 ++- lib/net.js | 16 ++++- .../test-net-server-pause-on-connect.js | 59 +++++++++++++++++++ 3 files changed, 80 insertions(+), 4 deletions(-) create mode 100644 test/simple/test-net-server-pause-on-connect.js diff --git a/doc/api/net.markdown b/doc/api/net.markdown index 0afcffc75..816050ae8 100644 --- a/doc/api/net.markdown +++ b/doc/api/net.markdown @@ -13,7 +13,9 @@ automatically set as a listener for the ['connection'][] event. `options` is an object with the following defaults: - { allowHalfOpen: false + { + allowHalfOpen: false, + pauseOnConnect: false } If `allowHalfOpen` is `true`, then the socket won't automatically send a FIN @@ -21,6 +23,11 @@ packet when the other end of the socket sends a FIN packet. The socket becomes non-readable, but still writable. You should call the `end()` method explicitly. See ['end'][] event for more information. +If `pauseOnConnect` is `true`, then the socket associated with each incoming +connection will be paused, and no data will be read from its handle. This allows +connections to be passed between processes without any data being read by the +original process. To begin reading data from a paused socket, call `resume()`. + Here is an example of an echo server which listens for connections on port 8124: diff --git a/lib/net.js b/lib/net.js index 005f339c2..34de98bc3 100644 --- a/lib/net.js +++ b/lib/net.js @@ -180,8 +180,16 @@ function Socket(options) { // if we have a handle, then start the flow of data into the // buffer. if not, then this will happen when we connect - if (this._handle && options.readable !== false) - this.read(0); + if (this._handle && options.readable !== false) { + if (options.pauseOnCreate) { + // stop the handle from reading and pause the stream + this._handle.reading = false; + this._handle.readStop(); + this._readableState.flowing = false; + } else { + this.read(0); + } + } } util.inherits(Socket, stream.Duplex); @@ -1024,6 +1032,7 @@ function Server(/* [ options, ] listener */) { this._slaves = []; this.allowHalfOpen = options.allowHalfOpen || false; + this.pauseOnConnect = !!options.pauseOnConnect; } util.inherits(Server, events.EventEmitter); exports.Server = Server; @@ -1287,7 +1296,8 @@ function onconnection(err, clientHandle) { var socket = new Socket({ handle: clientHandle, - allowHalfOpen: self.allowHalfOpen + allowHalfOpen: self.allowHalfOpen, + pauseOnCreate: self.pauseOnConnect }); socket.readable = socket.writable = true; diff --git a/test/simple/test-net-server-pause-on-connect.js b/test/simple/test-net-server-pause-on-connect.js new file mode 100644 index 000000000..3a8255e8f --- /dev/null +++ b/test/simple/test-net-server-pause-on-connect.js @@ -0,0 +1,59 @@ +// 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 net = require('net'); +var msg = 'test'; +var stopped = true; +var server1 = net.createServer({pauseOnConnect: true}, function(socket) { + socket.on('data', function(data) { + if (stopped) { + assert(false, 'data event should not have happened yet'); + } + + assert.equal(data.toString(), msg, 'invalid data received'); + socket.end(); + server1.close(); + }); + + setTimeout(function() { + assert.equal(socket.bytesRead, 0, 'no data should have been read yet'); + socket.resume(); + stopped = false; + }, 3000); +}); + +var server2 = net.createServer({pauseOnConnect: false}, function(socket) { + socket.on('data', function(data) { + assert.equal(data.toString(), msg, 'invalid data received'); + socket.end(); + server2.close(); + }); +}); + +server1.listen(common.PORT, function() { + net.createConnection({port: common.PORT}).write(msg); +}); + +server2.listen(common.PORT + 1, function() { + net.createConnection({port: common.PORT + 1}).write(msg); +});