From b2e00e38dcac23cf564636e8fad880829489286c Mon Sep 17 00:00:00 2001
From: Yosuke Furukawa <yosuke.furukawa@gmail.com>
Date: Sat, 14 Mar 2015 16:24:07 +0900
Subject: [PATCH] http: add flushHeaders and deprecate flush

PR-URL: https://github.com/iojs/io.js/pull/1156
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Christian Tellnes <christian@tellnes.no>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
---
 doc/api/http.markdown                    |  4 ++--
 lib/_http_outgoing.js                    |  6 +++++-
 test/parallel/test-http-flush-headers.js | 20 ++++++++++++++++++++
 3 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 test/parallel/test-http-flush-headers.js

diff --git a/doc/api/http.markdown b/doc/api/http.markdown
index c4af8f407c..de8e7eb6dd 100644
--- a/doc/api/http.markdown
+++ b/doc/api/http.markdown
@@ -866,7 +866,7 @@ the client should send the request body.
 Emitted when the request has been aborted by the client. This event is only
 emitted on the first call to `abort()`.
 
-### request.flush()
+### request.flushHeaders()
 
 Flush the request headers.
 
@@ -875,7 +875,7 @@ call `request.end()` or write the first chunk of request data.  It then tries
 hard to pack the request headers and data into a single TCP packet.
 
 That's usually what you want (it saves a TCP round-trip) but not when the first
-data isn't sent until possibly much later.  `request.flush()` lets you bypass
+data isn't sent until possibly much later.  `request.flushHeaders()` lets you bypass
 the optimization and kickstart the request.
 
 ### request.write(chunk[, encoding][, callback])
diff --git a/lib/_http_outgoing.js b/lib/_http_outgoing.js
index f6144ba6a6..3102261755 100644
--- a/lib/_http_outgoing.js
+++ b/lib/_http_outgoing.js
@@ -630,10 +630,14 @@ OutgoingMessage.prototype._flush = function() {
 };
 
 
-OutgoingMessage.prototype.flush = function() {
+OutgoingMessage.prototype.flushHeaders = function() {
   if (!this._header) {
     // Force-flush the headers.
     this._implicitHeader();
     this._send('');
   }
 };
+
+OutgoingMessage.prototype.flush = util.deprecate(function() {
+  this.flushHeaders();
+}, 'flush is deprecated. Use flushHeaders instead.');
diff --git a/test/parallel/test-http-flush-headers.js b/test/parallel/test-http-flush-headers.js
new file mode 100644
index 0000000000..ede0fa5202
--- /dev/null
+++ b/test/parallel/test-http-flush-headers.js
@@ -0,0 +1,20 @@
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const http = require('http');
+
+const server = http.createServer();
+server.on('request', function(req, res){
+  assert(req.headers['foo'], 'bar');
+  res.end('ok');
+  server.close();
+});
+server.listen(common.PORT, '127.0.0.1', function() {
+  let req = http.request({
+    method: 'GET',
+    host: '127.0.0.1',
+    port: common.PORT,
+  });
+  req.setHeader('foo', 'bar');
+  req.flushHeaders();
+});