init

include/DatabaseManager.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <boost/asio.hpp>
+#include <boost/asio/awaitable.hpp>
+#include <boost/mysql.hpp>
+#include <memory>
+#include <queue>
+#include <string>
+
+class DatabaseManager {
+public:
+  static DatabaseManager &GetInstance();
+
+  bool Init(boost::asio::io_context &io_context, const std::string &host,
+            uint16_t port, const std::string &user, const std::string &password,
+            const std::string &db);
+
+  struct UserData {
+    std::string nickname;
+    uint64_t gold;
+    uint32_t swordLevel;
+  };
+
+  boost::asio::awaitable<UserData> LoadUser(std::string nickname);
+  boost::asio::awaitable<void> SaveUser(std::string nickname, uint64_t gold,
+                                        uint32_t swordLevel);
+
+private:
+  DatabaseManager() = default;
+
+  // 비동기 Mutex 역할을 할 함수들
+  boost::asio::awaitable<void> Lock();
+  void Unlock();
+
+  std::unique_ptr<boost::mysql::tcp_ssl_connection> conn_;
+  std::unique_ptr<boost::asio::strand<boost::asio::io_context::executor_type>>
+      strand_;
+
+  // 비동기 락 시스템을 위한 상태 변수
+  bool is_locked_ = false;
+  std::queue<std::shared_ptr<boost::asio::steady_timer>> waiting_queue_;
+};