github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/commons/bytex/pool.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package bytex
    19  
    20  import (
    21  	"bytes"
    22  	"sync"
    23  )
    24  
    25  var (
    26  	array4kPool = sync.Pool{New: func() any {
    27  		return make([]byte, 4096)
    28  	}}
    29  )
    30  
    31  func Acquire4KBuffer() []byte {
    32  	x := array4kPool.Get()
    33  	if x == nil {
    34  		return make([]byte, 4096)
    35  	}
    36  	return x.([]byte)
    37  }
    38  
    39  func Release4KBuffer(buf []byte) {
    40  	array4kPool.Put(buf)
    41  }
    42  
    43  var (
    44  	bufPool = sync.Pool{
    45  		New: func() any {
    46  			return bytes.NewBuffer([]byte{})
    47  		},
    48  	}
    49  )
    50  
    51  func AcquireBuffer() *bytes.Buffer {
    52  	x := bufPool.Get()
    53  	if x == nil {
    54  		return bytes.NewBuffer([]byte{})
    55  	}
    56  	return x.(*bytes.Buffer)
    57  }
    58  
    59  func ReleaseBuffer(buf *bytes.Buffer) {
    60  	buf.Reset()
    61  	bufPool.Put(buf)
    62  }