make the request header public as the node module requires it

1 files changed, 60 insertions, 0 deletions

diff --git a/include/mbgl/storage/request.hpp b/include/mbgl/storage/request.hpp
new file mode 100644
index 0000000000..00157329be
--- /dev/null
+++ b/include/mbgl/storage/request.hpp
@@ -0,0 +1,60 @@
+#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 <mutex>
+#include <thread>
+#include <functional>
+#include <memory>
+
+typedef struct uv_async_s uv_async_t;
+typedef struct uv_loop_s uv_loop_t;
+
+namespace mbgl {
+
+class Response;
+class Environment;
+
+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, const Environment &env, Callback callback);
+
+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:
+    ~Request();
+    void invoke();
+    void notifyCallback();
+
+private:
+    uv_async_t *async = nullptr;
+    struct Canceled;
+    std::unique_ptr<Canceled> canceled;
+    Callback callback;
+    std::shared_ptr<const Response> response;
+
+public:
+    const Resource resource;
+
+    // The environment ref is used to associate requests with a particular environment. This allows
+    // us to only terminate requests associated with that environment, e.g. when the map the env
+    // belongs to is discarded.
+    const Environment &env;
+};
+
+}
+
+#endif