1 /* 2 * 3 * Copyright 2015 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 /// A ClientContext allows the person implementing a service client to: 20 /// 21 /// - Add custom metadata key-value pairs that will propagated to the server 22 /// side. 23 /// - Control call settings such as compression and authentication. 24 /// - Initial and trailing metadata coming from the server. 25 /// - Get performance metrics (ie, census). 26 /// 27 /// Context settings are only relevant to the call they are invoked with, that 28 /// is to say, they aren't sticky. Some of these settings, such as the 29 /// compression options, can be made persistent at channel construction time 30 /// (see \a grpc::CreateCustomChannel). 31 /// 32 /// \warning ClientContext instances should \em not be reused across rpcs. 33 34 #ifndef GRPCPP_CLIENT_CONTEXT_H 35 #define GRPCPP_CLIENT_CONTEXT_H 36 37 #include <grpcpp/impl/codegen/client_context.h> 38 39 #endif // GRPCPP_CLIENT_CONTEXT_H 40