/
bufpool.go
48 lines (42 loc) · 1.17 KB
/
bufpool.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
// Copyright 2018-2020 Burak Sezer
//
// 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 bufpool
import (
"bytes"
"sync"
)
// BufPool maintains a buffer pool.
type BufPool struct {
p sync.Pool
}
// New creates a new BufPool.
func New() *BufPool {
return &BufPool{
p: sync.Pool{
New: func() interface{} {
return new(bytes.Buffer)
},
},
}
}
// Put resets the buffer and puts it back to the pool.
func (p *BufPool) Put(b *bytes.Buffer) {
b.Reset()
p.p.Put(b)
}
// Get returns an empty buffer from the pool. It creates a new buffer, if there
// is no bytes.Buffer available in the pool.
func (p *BufPool) Get() *bytes.Buffer {
return p.p.Get().(*bytes.Buffer)
}