1 /*
2 *
3 * Copyright 2020 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 #include <gflags/gflags.h>
20 #include <grpc/grpc.h>
21 #include <grpc/support/log.h>
22 #include <grpc/support/time.h>
23 #include <grpcpp/server.h>
24 #include <grpcpp/server_builder.h>
25 #include <grpcpp/server_context.h>
26
27 #include <sstream>
28
29 #include "src/core/lib/gpr/string.h"
30 #include "src/core/lib/iomgr/gethostname.h"
31 #include "src/core/lib/transport/byte_stream.h"
32 #include "src/proto/grpc/testing/empty.pb.h"
33 #include "src/proto/grpc/testing/messages.pb.h"
34 #include "src/proto/grpc/testing/test.grpc.pb.h"
35 #include "test/core/util/test_config.h"
36 #include "test/cpp/util/test_config.h"
37
38 DEFINE_int32(port, 50051, "Server port.");
39 DEFINE_string(server_id, "cpp_server", "Server ID to include in responses.");
40
41 using grpc::Server;
42 using grpc::ServerBuilder;
43 using grpc::ServerContext;
44 using grpc::ServerCredentials;
45 using grpc::ServerReader;
46 using grpc::ServerReaderWriter;
47 using grpc::ServerWriter;
48 using grpc::Status;
49 using grpc::testing::Empty;
50 using grpc::testing::SimpleRequest;
51 using grpc::testing::SimpleResponse;
52 using grpc::testing::TestService;
53
54 class TestServiceImpl : public TestService::Service {
55 public:
TestServiceImpl(const std::string & i)56 TestServiceImpl(const std::string& i) : hostname_(i) {}
57
UnaryCall(ServerContext * context,const SimpleRequest * request,SimpleResponse * response)58 Status UnaryCall(ServerContext* context, const SimpleRequest* request,
59 SimpleResponse* response) {
60 response->set_server_id(FLAGS_server_id);
61 response->set_hostname(hostname_);
62 context->AddInitialMetadata("hostname", hostname_);
63 return Status::OK;
64 }
65
EmptyCall(ServerContext * context,const Empty * request,Empty * response)66 Status EmptyCall(ServerContext* context, const Empty* request,
67 Empty* response) {
68 context->AddInitialMetadata("hostname", hostname_);
69 return Status::OK;
70 }
71
72 private:
73 std::string hostname_;
74 };
75
RunServer(const int port,const std::string & hostname)76 void RunServer(const int port, const std::string& hostname) {
77 std::ostringstream server_address;
78 server_address << "0.0.0.0:" << port;
79
80 TestServiceImpl service(hostname);
81 ServerBuilder builder;
82 builder.RegisterService(&service);
83 builder.AddListeningPort(server_address.str(),
84 grpc::InsecureServerCredentials());
85 std::unique_ptr<Server> server(builder.BuildAndStart());
86 gpr_log(GPR_INFO, "Server listening on %s", server_address.str().c_str());
87
88 server->Wait();
89 }
90
main(int argc,char ** argv)91 int main(int argc, char** argv) {
92 grpc::testing::TestEnvironment env(argc, argv);
93 grpc::testing::InitTest(&argc, &argv, true);
94
95 char* hostname = grpc_gethostname();
96 if (hostname == nullptr) {
97 std::cout << "Failed to get hostname, terminating" << std::endl;
98 return 1;
99 }
100 if (FLAGS_port == 0) {
101 std::cout << "Invalid port, terminating" << std::endl;
102 return 1;
103 }
104
105 RunServer(FLAGS_port, hostname);
106
107 return 0;
108 }
109