| // +build linux,go1.9,!appengine |
| |
| /* |
| * |
| * Copyright 2018 gRPC authors. |
| * |
| * 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 channelz |
| |
| import ( |
| "syscall" |
| ) |
| |
| // GetSocketOption gets the socket option info of the conn. |
| func GetSocketOption(socket interface{}) *SocketOptionData { |
| c, ok := socket.(syscall.Conn) |
| if !ok { |
| return nil |
| } |
| data := &SocketOptionData{} |
| if rawConn, err := c.SyscallConn(); err == nil { |
| rawConn.Control(data.Getsockopt) |
| return data |
| } |
| return nil |
| } |
