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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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105 lines
3.2 KiB
105 lines
3.2 KiB
/* |
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* |
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* Copyright 2020 gRPC authors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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#include <grpc/grpc.h> |
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#include <grpc/support/log.h> |
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#include <grpc/support/time.h> |
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#include <grpcpp/server.h> |
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#include <grpcpp/server_builder.h> |
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#include <grpcpp/server_context.h> |
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#include <sstream> |
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#include "absl/flags/flag.h" |
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#include "src/core/lib/gpr/string.h" |
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#include "src/core/lib/iomgr/gethostname.h" |
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#include "src/core/lib/transport/byte_stream.h" |
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#include "src/proto/grpc/testing/empty.pb.h" |
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#include "src/proto/grpc/testing/messages.pb.h" |
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#include "src/proto/grpc/testing/test.grpc.pb.h" |
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#include "test/core/util/test_config.h" |
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#include "test/cpp/util/test_config.h" |
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ABSL_FLAG(int32_t, port, 50051, "Server port."); |
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ABSL_FLAG(std::string, server_id, "cpp_server", |
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"Server ID to include in responses."); |
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using grpc::Server; |
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using grpc::ServerBuilder; |
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using grpc::ServerContext; |
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using grpc::Status; |
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using grpc::testing::Empty; |
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using grpc::testing::SimpleRequest; |
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using grpc::testing::SimpleResponse; |
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using grpc::testing::TestService; |
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class TestServiceImpl : public TestService::Service { |
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public: |
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explicit TestServiceImpl(const std::string& i) : hostname_(i) {} |
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Status UnaryCall(ServerContext* context, const SimpleRequest* /*request*/, |
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SimpleResponse* response) override { |
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response->set_server_id(absl::GetFlag(FLAGS_server_id)); |
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response->set_hostname(hostname_); |
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context->AddInitialMetadata("hostname", hostname_); |
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return Status::OK; |
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} |
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Status EmptyCall(ServerContext* context, const Empty* /*request*/, |
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Empty* /*response*/) override { |
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context->AddInitialMetadata("hostname", hostname_); |
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return Status::OK; |
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} |
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private: |
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std::string hostname_; |
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}; |
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void RunServer(const int port, const std::string& hostname) { |
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std::ostringstream server_address; |
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server_address << "0.0.0.0:" << port; |
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TestServiceImpl service(hostname); |
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ServerBuilder builder; |
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builder.RegisterService(&service); |
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builder.AddListeningPort(server_address.str(), |
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grpc::InsecureServerCredentials()); |
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std::unique_ptr<Server> server(builder.BuildAndStart()); |
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gpr_log(GPR_INFO, "Server listening on %s", server_address.str().c_str()); |
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server->Wait(); |
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} |
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int main(int argc, char** argv) { |
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grpc::testing::TestEnvironment env(argc, argv); |
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grpc::testing::InitTest(&argc, &argv, true); |
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char* hostname = grpc_gethostname(); |
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if (hostname == nullptr) { |
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std::cout << "Failed to get hostname, terminating" << std::endl; |
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return 1; |
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} |
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if (absl::GetFlag(FLAGS_port) == 0) { |
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std::cout << "Invalid port, terminating" << std::endl; |
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return 1; |
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} |
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RunServer(absl::GetFlag(FLAGS_port), hostname); |
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return 0; |
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}
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