perf

pkg/util/pool/pool.go

@@ -0,0 +1,30 @@
+/*
+Copyright 2017 The GoStor Authors All rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package pool provides memory pool for buffer.
+package pool
+
+import "sync"
+
+func NewBuffer(size int) []byte {
+	var bytePool = sync.Pool{
+		New: func() interface{} {
+			return make([]byte, size)
+		},
+	}
+
+	return bytePool.Get().([]byte)
+}

pkg/util/util.go

@@ -73,6 +73,15 @@ func MarshalKVText(kv []KeyValue) []byte {
 	return data
 }
 
+func MarshalUint16(i uint16) []byte {
+	var data []byte
+	for j := 8; j >= 0; j -= 8 {
+		b := byte(i >> uint16(j))
+		data = append(data, b)
+	}
+	return data
+}
+
 func MarshalUint32(i uint32) []byte {
 	var data []byte
 	for j := 24; j >= 0; j -= 8 {