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- // +build !linux 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 (
- "sync"
-
- "google.golang.org/grpc/grpclog"
- )
-
- var once sync.Once
-
- // SocketOptionData defines the struct to hold socket option data, and related
- // getter function to obtain info from fd.
- // Windows OS doesn't support Socket Option
- type SocketOptionData struct {
- }
-
- // Getsockopt defines the function to get socket options requested by channelz.
- // It is to be passed to syscall.RawConn.Control().
- // Windows OS doesn't support Socket Option
- func (s *SocketOptionData) Getsockopt(fd uintptr) {
- once.Do(func() {
- grpclog.Warningln("Channelz: socket options are not supported on non-linux os and appengine.")
- })
- }
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