Scott Baker | 2d89798 | 2019-09-24 11:50:08 -0700 | [diff] [blame^] | 1 | // +build linux,!appengine |
| 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 | "syscall" |
| 25 | ) |
| 26 | |
| 27 | // GetSocketOption gets the socket option info of the conn. |
| 28 | func GetSocketOption(socket interface{}) *SocketOptionData { |
| 29 | c, ok := socket.(syscall.Conn) |
| 30 | if !ok { |
| 31 | return nil |
| 32 | } |
| 33 | data := &SocketOptionData{} |
| 34 | if rawConn, err := c.SyscallConn(); err == nil { |
| 35 | rawConn.Control(data.Getsockopt) |
| 36 | return data |
| 37 | } |
| 38 | return nil |
| 39 | } |