|  | /* | 
|  | * | 
|  | * Copyright 2015 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. | 
|  | * | 
|  | */ | 
|  |  | 
|  | /// A ClientContext allows the person implementing a service client to: | 
|  | /// | 
|  | /// - Add custom metadata key-value pairs that will propagated to the server | 
|  | /// side. | 
|  | /// - Control call settings such as compression and authentication. | 
|  | /// - Initial and trailing metadata coming from the server. | 
|  | /// - Get performance metrics (ie, census). | 
|  | /// | 
|  | /// Context settings are only relevant to the call they are invoked with, that | 
|  | /// is to say, they aren't sticky. Some of these settings, such as the | 
|  | /// compression options, can be made persistent at channel construction time | 
|  | /// (see \a grpc::CreateCustomChannel). | 
|  | /// | 
|  | /// \warning ClientContext instances should \em not be reused across rpcs. | 
|  |  | 
|  | #ifndef GRPCPP_CLIENT_CONTEXT_H | 
|  | #define GRPCPP_CLIENT_CONTEXT_H | 
|  |  | 
|  | #include <grpcpp/impl/codegen/client_context.h> | 
|  |  | 
|  | #endif  // GRPCPP_CLIENT_CONTEXT_H |