54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
/*
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* Copyright (C) 2020-2022, IrineSistiana
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*
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* This file is part of mosdns.
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*
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* mosdns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* mosdns is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package pool
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import (
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"bytes"
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"fmt"
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"sync"
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)
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type BytesBufPool struct {
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p sync.Pool
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}
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func NewBytesBufPool(initSize int) *BytesBufPool {
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if initSize < 0 {
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panic(fmt.Sprintf("utils.NewBytesBufPool: negative init size %d", initSize))
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}
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return &BytesBufPool{
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p: sync.Pool{New: func() any {
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b := new(bytes.Buffer)
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b.Grow(initSize)
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return b
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}},
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}
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}
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func (p *BytesBufPool) Get() *bytes.Buffer {
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return p.p.Get().(*bytes.Buffer)
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}
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func (p *BytesBufPool) Release(b *bytes.Buffer) {
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b.Reset()
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p.p.Put(b)
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}
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