初始提交: UE5.3项目基础框架

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

@@ -0,0 +1,64 @@
+#pragma once
+
+#include "ICacheDatabase.h"
+
+#include <spdlog/fwd.h>
+
+#include <cstddef>
+#include <memory>
+#include <optional>
+#include <string>
+
+namespace CesiumAsync {
+
+/**
+ * @brief Cache storage using SQLITE to store completed response.
+ */
+class CESIUMASYNC_API SqliteCache : public ICacheDatabase {
+public:
+  /**
+   * @brief Constructs a new instance with a given `databaseName` pointing to a
+   * database.
+   *
+   * The instance will connect to the existing database or create a new one if
+   * it doesn't exist
+   *
+   * @param pLogger The logger that receives error messages.
+   * @param databaseName the database path.
+   * @param maxItems the maximum number of items should be kept in the database
+   * after prunning.
+   */
+  SqliteCache(
+      const std::shared_ptr<spdlog::logger>& pLogger,
+      const std::string& databaseName,
+      uint64_t maxItems = 4096);
+  ~SqliteCache();
+
+  /** @copydoc ICacheDatabase::getEntry*/
+  virtual std::optional<CacheItem>
+  getEntry(const std::string& key) const override;
+
+  /** @copydoc ICacheDatabase::storeEntry*/
+  virtual bool storeEntry(
+      const std::string& key,
+      std::time_t expiryTime,
+      const std::string& url,
+      const std::string& requestMethod,
+      const HttpHeaders& requestHeaders,
+      uint16_t statusCode,
+      const HttpHeaders& responseHeaders,
+      const std::span<const std::byte>& responseData) override;
+
+  /** @copydoc ICacheDatabase::prune*/
+  virtual bool prune() override;
+
+  /** @copydoc ICacheDatabase::clearAll*/
+  virtual bool clearAll() override;
+
+private:
+  struct Impl;
+  std::unique_ptr<Impl> _pImpl;
+  void createConnection() const;
+  void destroyDatabase();
+};
+} // namespace CesiumAsync