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C++ 如何将 gRPC集成到机器人系统中

将 gRPC 集成到 C++ 机器人系统中可以显著提升系统的通信效率和性能。以下是一个基本的步骤指南:

  1. 安装 gRPC 和依赖项

    • 在 Linux 系统上,可以使用以下命令安装 gRPC 和其依赖项:
      sudo apt update
      sudo apt install -y build-essential autoconf libtool pkg-config libsystemd-dev libssl-dev
      sudo apt install -y protobuf-compiler libprotobuf-dev libgflags-dev libgtest-dev libc++-dev clang
      git clone https://github.com/grpc/grpc.git
      cd grpc
      git submodule update --init
      mkdir -p cmake/build
      cd cmake/build
      cmake ../..
      make
      sudo make install
      
  2. 编写 .proto 文件

    • 定义服务和消息类型。例如:
      syntax = "proto3";
      package robot_service;
      
      service RobotService {
        rpc GetStatus (StatusRequest) returns (StatusResponse) {}
        rpc Move (MoveRequest) returns (MoveResponse) {}
      }
      
      message StatusRequest {}
      message StatusResponse {
        string status = 1;
      }
      
      message MoveRequest {
        int32 direction = 1;
        int32 distance = 2;
      }
      
      message MoveResponse {
        bool success = 1;
      }
      
  3. 生成 gRPC 代码

    • 使用 protoc 编译 .proto 文件,生成服务端和客户端代码:
      protoc --cpp_out=. --grpc_out=. --plugin=protoc-gen-grpc=`which grpc_cpp_plugin` robot_service.proto
      
  4. 实现服务端

    • 创建并实现服务端代码:
      #include <grpcpp/grpcpp.h>
      #include "robot_service.grpc.pb.h"
      
      class RobotServiceImpl final : public robot_service::RobotService::Service {
        grpc::Status GetStatus(grpc::ServerContext* context, const robot_service::StatusRequest* request, robot_service::StatusResponse* response) override {
          response->set_status("OK");
          return grpc::Status::OK;
        }
      
        grpc::Status Move(grpc::ServerContext* context, const robot_service::MoveRequest* request, robot_service::MoveResponse* response) override {
          // Implement movement logic here
          response->set_success(true);
          return grpc::Status::OK;
        }
      };
      
      void RunServer() {
        std::string server_address("0.0.0.0:50051");
        RobotServiceImpl service;
        grpc::ServerBuilder builder;
        builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
        builder.RegisterService(&service);
        std::unique_ptr<grpc::Server> server(builder.BuildAndStart());
        std::cout << "Server listening on " << server_address << std::endl;
        server->Wait();
      }
      
      int main(int argc, char** argv) {
        RunServer();
        return 0;
      }
      
  5. 实现客户端

    • 创建并实现客户端代码:
      #include <grpcpp/grpcpp.h>
      #include "robot_service.grpc.pb.h"
      
      class RobotClient {
      public:
        RobotClient(std::shared_ptr<grpc::Channel> channel) : stub_(robot_service::RobotService::NewStub(channel)) {}
      
        std::string GetStatus() {
          robot_service::StatusRequest request;
          robot_service::StatusResponse response;
          grpc::ClientContext context;
          grpc::Status status = stub_->GetStatus(&context, request, &response);
          if (status.ok()) {
            return response.status();
          } else {
            return "RPC failed";
          }
        }
      
        bool Move(int direction, int distance) {
          robot_service::MoveRequest request;
          request.set_direction(direction);
          request.set_distance(distance);
          robot_service::MoveResponse response;
          grpc::ClientContext context;
          grpc::Status status = stub_->Move(&context, request, &response);
          return status.ok() && response.success();
        }
      
      private:
        std::unique_ptr<robot_service::RobotService::Stub> stub_;
      };
      
      int main(int argc, char** argv) {
        RobotClient client(grpc::CreateChannel("localhost:50051", grpc::InsecureChannelCredentials()));
        std::cout << "Status: " << client.GetStatus() << std::endl;
        bool success = client.Move(1, 10);
        std::cout << "Move success: " << success << std::endl;
        return 0;
      }
      

通过这些步骤,你可以在 C++ 机器人系统中集成 gRPC,实现高效的远程过程调用¹²³。如果你有任何具体问题或需要进一步的帮助,请告诉我!

源: 与必应的对话, 2025/1/10
(1) C++使用grpc详例(使用CMake构建) - CSDN博客. https://blog.csdn.net/QAZ600888/article/details/137181035.
(2) Visual Studio 2022 C++ gRPC 环境搭建 - CSDN博客. https://blog.csdn.net/Harrytsz/article/details/144912665.
(3) C++快速集成gRPC的几种方式介绍(内含预编译库下载) - 知乎. https://zhuanlan.zhihu.com/p/672607042.
(4) undefined. https://github.com/grpc/grpc.git.
(5) github.com. https://github.com/astavonin/Tasks-Explorer/tree/3feb2d9a0a4694812de6aa895a809899c62fe5c1/tasksexplorerd%2Fapp%2Fmain.cpp.
(6) github.com. https://github.com/JeremiahGelb/NotATank/tree/b81d3b6de573eb91464dc4567a5b9aa7596809c1/grpc_experiments%2Fmotor_control_server.cc.
(7) github.com. https://github.com/cmjagtap/gRPC_examples/tree/a814c49e48e26417762420e00955dc532707c9a3/BidirectionalRPC%2FmyServer.cc.
(8) github.com. https://github.com/ztshandong/ztshandong.github.io/tree/d34369ede09891376b583fdcddf6f5723a77a49d/learn_notes%2FGRPC.md.

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