1// Copyright (c) 2016 Uber Technologies, Inc. 2// 3// Permission is hereby granted, free of charge, to any person obtaining a copy 4// of this software and associated documentation files (the "Software"), to deal 5// in the Software without restriction, including without limitation the rights 6// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7// copies of the Software, and to permit persons to whom the Software is 8// furnished to do so, subject to the following conditions: 9// 10// The above copyright notice and this permission notice shall be included in 11// all copies or substantial portions of the Software. 12// 13// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19// THE SOFTWARE. 20 21package buffer 22 23import "sync" 24 25// A Pool is a type-safe wrapper around a sync.Pool. 26type Pool struct { 27 p *sync.Pool 28} 29 30// NewPool constructs a new Pool. 31func NewPool() Pool { 32 return Pool{p: &sync.Pool{ 33 New: func() interface{} { 34 return &Buffer{bs: make([]byte, 0, _size)} 35 }, 36 }} 37} 38 39// Get retrieves a Buffer from the pool, creating one if necessary. 40func (p Pool) Get() *Buffer { 41 buf := p.p.Get().(*Buffer) 42 buf.Reset() 43 buf.pool = p 44 return buf 45} 46 47func (p Pool) put(buf *Buffer) { 48 p.p.Put(buf) 49} 50