syscall_nonlinux.go raw

   1  //go:build !linux
   2  
   3  /*
   4   *
   5   * Copyright 2018 gRPC authors.
   6   *
   7   * Licensed under the Apache License, Version 2.0 (the "License");
   8   * you may not use this file except in compliance with the License.
   9   * You may obtain a copy of the License at
  10   *
  11   *     http://www.apache.org/licenses/LICENSE-2.0
  12   *
  13   * Unless required by applicable law or agreed to in writing, software
  14   * distributed under the License is distributed on an "AS IS" BASIS,
  15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16   * See the License for the specific language governing permissions and
  17   * limitations under the License.
  18   *
  19   */
  20  
  21  package channelz
  22  
  23  import (
  24  	"sync"
  25  )
  26  
  27  var once sync.Once
  28  
  29  // SocketOptionData defines the struct to hold socket option data, and related
  30  // getter function to obtain info from fd.
  31  // Windows OS doesn't support Socket Option
  32  type SocketOptionData struct {
  33  }
  34  
  35  // Getsockopt defines the function to get socket options requested by channelz.
  36  // It is to be passed to syscall.RawConn.Control().
  37  // Windows OS doesn't support Socket Option
  38  func (s *SocketOptionData) Getsockopt(uintptr) {
  39  	once.Do(func() {
  40  		logger.Warning("Channelz: socket options are not supported on non-linux environments")
  41  	})
  42  }
  43  
  44  // GetSocketOption gets the socket option info of the conn.
  45  func GetSocketOption(any) *SocketOptionData {
  46  	return nil
  47  }
  48