C++ 框架性能基准：混合和定制场景的性能分析

#include <boost/asio.hpp>
#include <Poco/Data/MySQL/SessionFactory.h>

namespace http = boost::beast::http;
using Poco::Data::MySQL::MySQLException;

class MyHttpHandler : public std::enable_shared_from_this<MyHttpHandler> {
public:
  static std::shared_ptr<MyHttpHandler> Create() {
    return std::make_shared<MyHttpHandler>();
  }

  void Run() {
    try {
      auto session = Poco::Data::MySQL::SessionFactory()
        .OpenSession("MySQL", "root@localhost/mydb");
      auto result = session->ExecuteQuery("SELECT * FROM table_name");
      // 处理结果并生成 HTTP 响应
    } catch (MySQLException& e) {
      // Handle database error
    }
  }
};

int main() {
  using namespace std::placeholders;

  boost::asio::io_context io_context;
  auto listener = boost::asio::ip::tcp::acceptor(io_context, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), 8080));
  listener.listen();

  while (true) {
    auto socket = boost::asio::ip::tcp::socket(io_context);
    listener.accept(socket);
    auto handler = MyHttpHandler::Create();
    socket.async_read_some(boost::asio::buffer(handler->buffer),
      std::bind(&MyHttpHandler::HandleRequest, handler, _1, _2));
  }

  return 0;
}