xref: /aosp_15_r20/external/grpc-grpc/examples/cpp/compression/greeter_server.cc (revision cc02d7e222339f7a4f6ba5f422e6413f4bd931f2)
1*cc02d7e2SAndroid Build Coastguard Worker /*
2*cc02d7e2SAndroid Build Coastguard Worker  *
3*cc02d7e2SAndroid Build Coastguard Worker  * Copyright 2018 gRPC authors.
4*cc02d7e2SAndroid Build Coastguard Worker  *
5*cc02d7e2SAndroid Build Coastguard Worker  * Licensed under the Apache License, Version 2.0 (the "License");
6*cc02d7e2SAndroid Build Coastguard Worker  * you may not use this file except in compliance with the License.
7*cc02d7e2SAndroid Build Coastguard Worker  * You may obtain a copy of the License at
8*cc02d7e2SAndroid Build Coastguard Worker  *
9*cc02d7e2SAndroid Build Coastguard Worker  *     http://www.apache.org/licenses/LICENSE-2.0
10*cc02d7e2SAndroid Build Coastguard Worker  *
11*cc02d7e2SAndroid Build Coastguard Worker  * Unless required by applicable law or agreed to in writing, software
12*cc02d7e2SAndroid Build Coastguard Worker  * distributed under the License is distributed on an "AS IS" BASIS,
13*cc02d7e2SAndroid Build Coastguard Worker  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14*cc02d7e2SAndroid Build Coastguard Worker  * See the License for the specific language governing permissions and
15*cc02d7e2SAndroid Build Coastguard Worker  * limitations under the License.
16*cc02d7e2SAndroid Build Coastguard Worker  *
17*cc02d7e2SAndroid Build Coastguard Worker  */
18*cc02d7e2SAndroid Build Coastguard Worker 
19*cc02d7e2SAndroid Build Coastguard Worker #include <iostream>
20*cc02d7e2SAndroid Build Coastguard Worker #include <memory>
21*cc02d7e2SAndroid Build Coastguard Worker #include <string>
22*cc02d7e2SAndroid Build Coastguard Worker 
23*cc02d7e2SAndroid Build Coastguard Worker #include <grpcpp/grpcpp.h>
24*cc02d7e2SAndroid Build Coastguard Worker 
25*cc02d7e2SAndroid Build Coastguard Worker #ifdef BAZEL_BUILD
26*cc02d7e2SAndroid Build Coastguard Worker #include "examples/protos/helloworld.grpc.pb.h"
27*cc02d7e2SAndroid Build Coastguard Worker #else
28*cc02d7e2SAndroid Build Coastguard Worker #include "helloworld.grpc.pb.h"
29*cc02d7e2SAndroid Build Coastguard Worker #endif
30*cc02d7e2SAndroid Build Coastguard Worker 
31*cc02d7e2SAndroid Build Coastguard Worker using grpc::Server;
32*cc02d7e2SAndroid Build Coastguard Worker using grpc::ServerBuilder;
33*cc02d7e2SAndroid Build Coastguard Worker using grpc::ServerContext;
34*cc02d7e2SAndroid Build Coastguard Worker using grpc::Status;
35*cc02d7e2SAndroid Build Coastguard Worker using helloworld::Greeter;
36*cc02d7e2SAndroid Build Coastguard Worker using helloworld::HelloReply;
37*cc02d7e2SAndroid Build Coastguard Worker using helloworld::HelloRequest;
38*cc02d7e2SAndroid Build Coastguard Worker 
39*cc02d7e2SAndroid Build Coastguard Worker // Logic and data behind the server's behavior.
40*cc02d7e2SAndroid Build Coastguard Worker class GreeterServiceImpl final : public Greeter::Service {
SayHello(ServerContext * context,const HelloRequest * request,HelloReply * reply)41*cc02d7e2SAndroid Build Coastguard Worker   Status SayHello(ServerContext* context, const HelloRequest* request,
42*cc02d7e2SAndroid Build Coastguard Worker                   HelloReply* reply) override {
43*cc02d7e2SAndroid Build Coastguard Worker     // Overwrite the call's compression algorithm to DEFLATE.
44*cc02d7e2SAndroid Build Coastguard Worker     context->set_compression_algorithm(GRPC_COMPRESS_DEFLATE);
45*cc02d7e2SAndroid Build Coastguard Worker     std::string prefix("Hello ");
46*cc02d7e2SAndroid Build Coastguard Worker     reply->set_message(prefix + request->name());
47*cc02d7e2SAndroid Build Coastguard Worker     return Status::OK;
48*cc02d7e2SAndroid Build Coastguard Worker   }
49*cc02d7e2SAndroid Build Coastguard Worker };
50*cc02d7e2SAndroid Build Coastguard Worker 
RunServer()51*cc02d7e2SAndroid Build Coastguard Worker void RunServer() {
52*cc02d7e2SAndroid Build Coastguard Worker   std::string server_address("0.0.0.0:50051");
53*cc02d7e2SAndroid Build Coastguard Worker   GreeterServiceImpl service;
54*cc02d7e2SAndroid Build Coastguard Worker 
55*cc02d7e2SAndroid Build Coastguard Worker   ServerBuilder builder;
56*cc02d7e2SAndroid Build Coastguard Worker   // Set the default compression algorithm for the server.
57*cc02d7e2SAndroid Build Coastguard Worker   builder.SetDefaultCompressionAlgorithm(GRPC_COMPRESS_GZIP);
58*cc02d7e2SAndroid Build Coastguard Worker   // Listen on the given address without any authentication mechanism.
59*cc02d7e2SAndroid Build Coastguard Worker   builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
60*cc02d7e2SAndroid Build Coastguard Worker   // Register "service" as the instance through which we'll communicate with
61*cc02d7e2SAndroid Build Coastguard Worker   // clients. In this case it corresponds to an *synchronous* service.
62*cc02d7e2SAndroid Build Coastguard Worker   builder.RegisterService(&service);
63*cc02d7e2SAndroid Build Coastguard Worker   // Finally assemble the server.
64*cc02d7e2SAndroid Build Coastguard Worker   std::unique_ptr<Server> server(builder.BuildAndStart());
65*cc02d7e2SAndroid Build Coastguard Worker   std::cout << "Server listening on " << server_address << std::endl;
66*cc02d7e2SAndroid Build Coastguard Worker 
67*cc02d7e2SAndroid Build Coastguard Worker   // Wait for the server to shutdown. Note that some other thread must be
68*cc02d7e2SAndroid Build Coastguard Worker   // responsible for shutting down the server for this call to ever return.
69*cc02d7e2SAndroid Build Coastguard Worker   server->Wait();
70*cc02d7e2SAndroid Build Coastguard Worker }
71*cc02d7e2SAndroid Build Coastguard Worker 
main(int argc,char ** argv)72*cc02d7e2SAndroid Build Coastguard Worker int main(int argc, char** argv) {
73*cc02d7e2SAndroid Build Coastguard Worker   RunServer();
74*cc02d7e2SAndroid Build Coastguard Worker 
75*cc02d7e2SAndroid Build Coastguard Worker   return 0;
76*cc02d7e2SAndroid Build Coastguard Worker }
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