1 files changed, 46 insertions, 0 deletions
diff --git a/include/mbgl/storage/base_request.hpp b/include/mbgl/storage/base_request.hpp
new file mode 100644
index 0000000000..b8ebd368e4
--- /dev/null
+++ b/include/mbgl/storage/base_request.hpp
@@ -0,0 +1,46 @@
+#ifndef MBGL_STORAGE_BASE_REQUEST
+#define MBGL_STORAGE_BASE_REQUEST
+
+#include <string>
+#include <forward_list>
+#include <memory>
+#include <functional>
+
+typedef struct uv_loop_s uv_loop_t;
+typedef struct uv_async_s uv_async_t;
+
+namespace mbgl {
+
+class Response;
+class Request;
+using Callback = std::function<void(const Response &)>;
+
+
+class BaseRequest {
+private:
+    // Make noncopyable and immovable
+    BaseRequest(const BaseRequest &) = delete;
+    BaseRequest(BaseRequest &&) = delete;
+    BaseRequest& operator=(const BaseRequest &) = delete;
+    BaseRequest& operator=(BaseRequest &&) = delete;
+
+public:
+    BaseRequest();
+    virtual ~BaseRequest();
+
+    Callback *add(Callback &&callback, const std::shared_ptr<BaseRequest> &request);
+    void remove(Callback *callback);
+    void notify();
+
+public:
+    const unsigned long thread_id;
+    std::unique_ptr<Response> response;
+
+private:
+    std::shared_ptr<BaseRequest> self;
+    std::forward_list<std::unique_ptr<Callback>> callbacks;
+};
+
+}
+
+#endif