补充某些必要的文件

cocos2d-x/external/sources/SocketRocket/Internal/SRConstants.m

@@ -0,0 +1,19 @@
+//
+// Copyright (c) 2016-present, Facebook, Inc.
+// All rights reserved.
+//
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree. An additional grant
+// of patent rights can be found in the PATENTS file in the same directory.
+//
+
+#import "SRConstants.h"
+
+size_t SRDefaultBufferSize(void) {
+    static size_t size;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        size = getpagesize();
+    });
+    return size;
+}