rewrite storage layer to be independent of the Map's event loop

1 files changed, 46 insertions, 0 deletions

diff --git a/include/mbgl/storage/default/request.hpp b/include/mbgl/storage/default/request.hpp
new file mode 100644
index 0000000000..0ed544093c
--- /dev/null
+++ b/include/mbgl/storage/default/request.hpp
@@ -0,0 +1,46 @@
+#ifndef MBGL_STORAGE_DEFAULT_REQUEST
+#define MBGL_STORAGE_DEFAULT_REQUEST
+
+#include <mbgl/storage/resource.hpp>
+
+#include <mbgl/util/util.hpp>
+#include <mbgl/util/noncopyable.hpp>
+
+#include <functional>
+
+typedef struct uv_async_s uv_async_t;
+typedef struct uv_loop_s uv_loop_t;
+
+namespace mbgl {
+
+class Response;
+
+class Request : private util::noncopyable {
+    MBGL_STORE_THREAD(tid)
+
+public:
+    using Callback = std::function<void(const Response &)>;
+    Request(const Resource &resource, uv_loop_t *loop, Callback callback);
+    ~Request();
+
+public:
+    // May be called from any thread.
+    void notify(const std::shared_ptr<const Response> &response);
+    void destruct();
+
+    // May be called only from the thread the Request was created in.
+    void cancel();
+
+private:
+    uv_async_t *notify_async = nullptr;
+    uv_async_t *destruct_async = nullptr;
+    Callback callback;
+    std::shared_ptr<const Response> response;
+
+public:
+    const Resource resource;
+};
+
+}
+
+#endif