初始提交: UE5.3项目基础框架

Plugins/CesiumForUnreal/Source/ThirdParty/include/CesiumAsync/SqliteHelper.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include "cesium-sqlite3.h"
+
+#include <memory>
+#include <string>
+
+struct CESIUM_SQLITE(sqlite3);
+struct CESIUM_SQLITE(sqlite3_stmt);
+
+namespace CesiumAsync {
+
+/**
+ * @brief A deleter that can be used with `std::unique_ptr` to properly destroy
+ * a SQLite connection when it is no longer needed.
+ */
+struct DeleteSqliteConnection {
+  /** @brief Closes the provided sqlite connection when called. */
+  void operator()(CESIUM_SQLITE(sqlite3*) pConnection) noexcept;
+};
+
+/**
+ * @brief A deleter that can be used with `std::unique_ptr` to properly destroy
+ * a SQLite prepared statement when it is no longer needed.
+ */
+struct DeleteSqliteStatement {
+  /** @brief Finalizes the provided sqlite statement when called. */
+  void operator()(CESIUM_SQLITE(sqlite3_stmt*) pStatement) noexcept;
+};
+
+/**
+ * @brief A `std::unique_ptr<sqlite3>` that will properly delete the connection
+ * using the SQLite API.
+ */
+using SqliteConnectionPtr =
+    std::unique_ptr<CESIUM_SQLITE(sqlite3), DeleteSqliteConnection>;
+
+/**
+ * @brief A `std::unique_ptr<sqlite3_stmt>` that will properly delete the
+ * statement using the SQLite API.
+ */
+using SqliteStatementPtr =
+    std::unique_ptr<CESIUM_SQLITE(sqlite3_stmt), DeleteSqliteStatement>;
+
+/**
+ * @brief Helper functions for working with SQLite.
+ */
+struct SqliteHelper {
+  /**
+   * @brief Create a prepared statement.
+   *
+   * @param pConnection The SQLite connection in which to create the prepared
+   * statement.
+   * @param sql The SQL text for the statement.
+   * @return The created prepared statement.
+   */
+  static SqliteStatementPtr prepareStatement(
+      const SqliteConnectionPtr& pConnection,
+      const std::string& sql);
+};
+
+} // namespace CesiumAsync