| // Copyright 2021-2023 Buf Technologies, Inc. |
| // |
| // 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 triple_protocol |
| |
| import ( |
| "bytes" |
| "sync" |
| ) |
| |
| const ( |
| initialBufferSize = 512 |
| maxRecycleBufferSize = 8 * 1024 * 1024 // if >8MiB, don't hold onto a buffer |
| ) |
| |
| type bufferPool struct { |
| sync.Pool |
| } |
| |
| func newBufferPool() *bufferPool { |
| return &bufferPool{ |
| Pool: sync.Pool{ |
| New: func() any { |
| return bytes.NewBuffer(make([]byte, 0, initialBufferSize)) |
| }, |
| }, |
| } |
| } |
| |
| func (b *bufferPool) Get() *bytes.Buffer { |
| if buf, ok := b.Pool.Get().(*bytes.Buffer); ok { |
| return buf |
| } |
| return bytes.NewBuffer(make([]byte, 0, initialBufferSize)) |
| } |
| |
| func (b *bufferPool) Put(buffer *bytes.Buffer) { |
| if buffer.Cap() > maxRecycleBufferSize { |
| return |
| } |
| buffer.Reset() |
| b.Pool.Put(buffer) |
| } |