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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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