sync.Pool -> bytes.Buffer

BufferSyncPool.go

func NewBufferPool(bufsize int) BufferPool {
	if bufsize <= 0 {
		bufsize = bytes.MinRead
	}
	return BufferPool{pool: &sync.Pool{New: func() any {
		return bytes.NewBuffer(make([]byte, 0, bufsize))
	}}}
}

type BufferPool struct {
	pool *sync.Pool
}

func (bp BufferPool) Get() *bytes.Buffer {
	return bp.pool.Get().(*bytes.Buffer)
}

func (bp BufferPool) Put(b *bytes.Buffer) {
	b.Reset()
	bp.pool.Put(b)
}