mirror of
https://github.com/fatedier/frp.git
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64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
// Copyright 2016 fatedier, fatedier@gmail.com
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pool
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import "sync"
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var (
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bufPool16k sync.Pool
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bufPool5k sync.Pool
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bufPool2k sync.Pool
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bufPool1k sync.Pool
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bufPool sync.Pool
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)
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func GetBuf(size int) []byte {
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var x interface{}
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if size >= 16*1024 {
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x = bufPool16k.Get()
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} else if size >= 5*1024 {
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x = bufPool5k.Get()
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} else if size >= 2*1024 {
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x = bufPool2k.Get()
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} else if size >= 1*1024 {
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x = bufPool1k.Get()
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} else {
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x = bufPool.Get()
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}
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if x == nil {
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return make([]byte, size)
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}
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buf := x.([]byte)
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if cap(buf) < size {
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return make([]byte, size)
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}
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return buf[:size]
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}
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func PutBuf(buf []byte) {
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size := cap(buf)
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if size >= 16*1024 {
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bufPool16k.Put(buf)
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} else if size >= 5*1024 {
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bufPool5k.Put(buf)
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} else if size >= 2*1024 {
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bufPool2k.Put(buf)
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} else if size >= 1*1024 {
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bufPool1k.Put(buf)
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} else {
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bufPool.Put(buf)
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}
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}
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