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Prelimiary work for maintenance API in adapter Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
// Copyright 2016 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package adapter
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import (
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"errors"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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)
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var errAlreadySentHeader = errors.New("adapter: already sent header")
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type ws2wc struct{ wserv pb.WatchServer }
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func WatchServerToWatchClient(wserv pb.WatchServer) pb.WatchClient {
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return &ws2wc{wserv}
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}
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func (s *ws2wc) Watch(ctx context.Context, opts ...grpc.CallOption) (pb.Watch_WatchClient, error) {
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cs := newPipeStream(ctx, func(ss chanServerStream) error {
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return s.wserv.Watch(&ws2wcServerStream{ss})
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})
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return &ws2wcClientStream{cs}, nil
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}
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// ws2wcClientStream implements Watch_WatchClient
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type ws2wcClientStream struct{ chanClientStream }
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// ws2wcServerStream implements Watch_WatchServer
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type ws2wcServerStream struct{ chanServerStream }
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func (s *ws2wcClientStream) Send(wr *pb.WatchRequest) error {
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return s.SendMsg(wr)
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}
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func (s *ws2wcClientStream) Recv() (*pb.WatchResponse, error) {
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var v interface{}
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if err := s.RecvMsg(&v); err != nil {
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return nil, err
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}
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return v.(*pb.WatchResponse), nil
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}
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func (s *ws2wcServerStream) Send(wr *pb.WatchResponse) error {
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return s.SendMsg(wr)
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}
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func (s *ws2wcServerStream) Recv() (*pb.WatchRequest, error) {
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var v interface{}
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if err := s.RecvMsg(&v); err != nil {
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return nil, err
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}
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return v.(*pb.WatchRequest), nil
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}
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