go.etcd.io/etcd@v3.3.27+incompatible/proxy/grpcproxy/adapter/lease_client_adapter.go (about) 1 // Copyright 2017 The etcd Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package adapter 16 17 import ( 18 "context" 19 20 pb "github.com/coreos/etcd/etcdserver/etcdserverpb" 21 22 "google.golang.org/grpc" 23 ) 24 25 type ls2lc struct { 26 leaseServer pb.LeaseServer 27 } 28 29 func LeaseServerToLeaseClient(ls pb.LeaseServer) pb.LeaseClient { 30 return &ls2lc{ls} 31 } 32 33 func (c *ls2lc) LeaseGrant(ctx context.Context, in *pb.LeaseGrantRequest, opts ...grpc.CallOption) (*pb.LeaseGrantResponse, error) { 34 return c.leaseServer.LeaseGrant(ctx, in) 35 } 36 37 func (c *ls2lc) LeaseRevoke(ctx context.Context, in *pb.LeaseRevokeRequest, opts ...grpc.CallOption) (*pb.LeaseRevokeResponse, error) { 38 return c.leaseServer.LeaseRevoke(ctx, in) 39 } 40 41 func (c *ls2lc) LeaseKeepAlive(ctx context.Context, opts ...grpc.CallOption) (pb.Lease_LeaseKeepAliveClient, error) { 42 cs := newPipeStream(ctx, func(ss chanServerStream) error { 43 return c.leaseServer.LeaseKeepAlive(&ls2lcServerStream{ss}) 44 }) 45 return &ls2lcClientStream{cs}, nil 46 } 47 48 func (c *ls2lc) LeaseTimeToLive(ctx context.Context, in *pb.LeaseTimeToLiveRequest, opts ...grpc.CallOption) (*pb.LeaseTimeToLiveResponse, error) { 49 return c.leaseServer.LeaseTimeToLive(ctx, in) 50 } 51 52 func (c *ls2lc) LeaseLeases(ctx context.Context, in *pb.LeaseLeasesRequest, opts ...grpc.CallOption) (*pb.LeaseLeasesResponse, error) { 53 return c.leaseServer.LeaseLeases(ctx, in) 54 } 55 56 // ls2lcClientStream implements Lease_LeaseKeepAliveClient 57 type ls2lcClientStream struct{ chanClientStream } 58 59 // ls2lcServerStream implements Lease_LeaseKeepAliveServer 60 type ls2lcServerStream struct{ chanServerStream } 61 62 func (s *ls2lcClientStream) Send(rr *pb.LeaseKeepAliveRequest) error { 63 return s.SendMsg(rr) 64 } 65 func (s *ls2lcClientStream) Recv() (*pb.LeaseKeepAliveResponse, error) { 66 var v interface{} 67 if err := s.RecvMsg(&v); err != nil { 68 return nil, err 69 } 70 return v.(*pb.LeaseKeepAliveResponse), nil 71 } 72 73 func (s *ls2lcServerStream) Send(rr *pb.LeaseKeepAliveResponse) error { 74 return s.SendMsg(rr) 75 } 76 func (s *ls2lcServerStream) Recv() (*pb.LeaseKeepAliveRequest, error) { 77 var v interface{} 78 if err := s.RecvMsg(&v); err != nil { 79 return nil, err 80 } 81 return v.(*pb.LeaseKeepAliveRequest), nil 82 }