gitee.com/ks-custle/core-gm@v0.0.0-20230922171213-b83bdd97b62c/grpc/internal/channelz/util_linux.go (about) 1 /* 2 * 3 * Copyright 2018 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 package channelz 20 21 import ( 22 "syscall" 23 ) 24 25 // GetSocketOption gets the socket option info of the conn. 26 func GetSocketOption(socket interface{}) *SocketOptionData { 27 c, ok := socket.(syscall.Conn) 28 if !ok { 29 return nil 30 } 31 data := &SocketOptionData{} 32 if rawConn, err := c.SyscallConn(); err == nil { 33 _ = rawConn.Control(data.Getsockopt) 34 return data 35 } 36 return nil 37 }