github.com/cloudwego/kitex@v0.9.0/pkg/remote/connpool/utils.go (about)

     1  /*
     2   * Copyright 2021 CloudWeGo Authors
     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  package connpool
    18  
    19  import (
    20  	"net"
    21  	"sync/atomic"
    22  )
    23  
    24  // ConnWithPkgSize wraps a connection and records the bytes read or written through it.
    25  type ConnWithPkgSize struct {
    26  	net.Conn
    27  	Written int32
    28  	Readn   int32
    29  }
    30  
    31  // Read implements the net.Conn interface.
    32  func (c *ConnWithPkgSize) Read(b []byte) (n int, err error) {
    33  	n, err = c.Conn.Read(b)
    34  	atomic.AddInt32(&(c.Readn), int32(n))
    35  	return n, err
    36  }
    37  
    38  // Write implements the net.Conn interface.
    39  func (c *ConnWithPkgSize) Write(b []byte) (n int, err error) {
    40  	n, err = c.Conn.Write(b)
    41  	atomic.AddInt32(&(c.Written), int32(n))
    42  	return n, err
    43  }
    44  
    45  // Close implements the net.Conn interface.
    46  func (c *ConnWithPkgSize) Close() error {
    47  	err := c.Conn.Close()
    48  	c.Conn = nil
    49  	return err
    50  }