From 88c9947285df8d042a4059e995546200d4bcf90a Mon Sep 17 00:00:00 2001
From: Darien Raymond <admin@v2ray.com>
Date: Tue, 6 Dec 2016 11:27:58 +0100
Subject: [PATCH] simplify chain writing

---
 common/io/chain_writer.go | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/common/io/chain_writer.go b/common/io/chain_writer.go
index 79d20acb..70b751c5 100644
--- a/common/io/chain_writer.go
+++ b/common/io/chain_writer.go
@@ -29,16 +29,10 @@ func (v *ChainWriter) Write(payload []byte) (int, error) {
 	size := len(payload)
 	for size > 0 {
 		buffer := alloc.NewBuffer()
-		if size > alloc.BufferSize {
-			buffer.Append(payload[:alloc.BufferSize])
-			size -= alloc.BufferSize
-			payload = payload[alloc.BufferSize:]
-			bytesWritten += alloc.BufferSize
-		} else {
-			buffer.Append(payload)
-			bytesWritten += size
-			size = 0
-		}
+		nBytes, _ := buffer.Write(payload)
+		size -= nBytes
+		payload = payload[nBytes:]
+		bytesWritten += nBytes
 		err := v.writer.Write(buffer)
 		if err != nil {
 			return bytesWritten, err