| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 primitive |
| |
| import ( |
| "bytes" |
| "sync" |
| ) |
| |
| var headerPool = sync.Pool{} |
| var bufferPool = sync.Pool{} |
| |
| func init() { |
| headerPool.New = func() interface{} { |
| return make([]byte, 4) |
| } |
| bufferPool.New = func() interface{} { |
| return new(bytes.Buffer) |
| } |
| } |
| |
| func GetHeader() []byte { |
| d := headerPool.Get().([]byte) |
| //d = (d)[:0] |
| return d |
| } |
| |
| func BackHeader(d []byte) { |
| headerPool.Put(d) |
| } |
| |
| func GetBuffer() *bytes.Buffer { |
| b := bufferPool.Get().(*bytes.Buffer) |
| b.Reset() |
| return b |
| } |
| |
| func BackBuffer(b *bytes.Buffer) { |
| b.Reset() |
| bufferPool.Put(b) |
| } |