1 /* 2 * Copyright 2019 Google LLC. 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 * https://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 16 #ifndef PRIVATE_JOIN_AND_COMPUTE_PRIVATE_JOIN_AND_COMPUTE_RPC_IMPL_H_ 17 #define PRIVATE_JOIN_AND_COMPUTE_PRIVATE_JOIN_AND_COMPUTE_RPC_IMPL_H_ 18 19 #include <memory> 20 #include <utility> 21 22 #include "include/grpcpp/grpcpp.h" 23 #include "include/grpcpp/server_context.h" 24 #include "include/grpcpp/support/status.h" 25 #include "private_join_and_compute/private_join_and_compute.grpc.pb.h" 26 #include "private_join_and_compute/private_join_and_compute.pb.h" 27 #include "private_join_and_compute/protocol_server.h" 28 29 namespace private_join_and_compute { 30 31 // Implements the PrivateJoin and Compute RPC-handling Server. 32 class PrivateJoinAndComputeRpcImpl : public PrivateJoinAndComputeRpc::Service { 33 public: 34 // Takes as a parameter an implementation of the server actually implementing 35 // the steps of the protocol. 36 // 37 // Important note: This class will internally create a server message sink 38 // that accepts a SINGLE message in response to a Handle request, and fails 39 // with INVALID_ARGUMENT if more than one message is supplied. All supplied 40 // protocol_server_impls' Handle methods should therefore Send at most one 41 // message to the server_message_sink. PrivateJoinAndComputeRpcImpl(std::unique_ptr<ProtocolServer> protocol_server_impl)42 explicit PrivateJoinAndComputeRpcImpl( 43 std::unique_ptr<ProtocolServer> protocol_server_impl) 44 : protocol_server_impl_(std::move(protocol_server_impl)) {} 45 46 // Executes a round of the protocol. 47 ::grpc::Status Handle(::grpc::ServerContext* context, 48 const ClientMessage* request, 49 ServerMessage* response) override; 50 protocol_finished()51 bool protocol_finished() { 52 return protocol_server_impl_->protocol_finished(); 53 } 54 55 private: 56 std::unique_ptr<ProtocolServer> protocol_server_impl_; 57 }; 58 59 } // namespace private_join_and_compute 60 61 #endif // PRIVATE_JOIN_AND_COMPUTE_PRIVATE_JOIN_AND_COMPUTE_RPC_IMPL_H_ 62