added get_storage_impl() to torrent_handle

include/libtorrent/storage.hpp

@@ -259,6 +259,8 @@ namespace libtorrent
 			disk_check_aborted = -3
 		};
 
+		storage_interface* get_storage_impl() { return m_storage.get(); }
+
 	private:
 
 		fs::path save_path() const;

include/libtorrent/torrent.hpp

@@ -170,6 +170,12 @@ namespace libtorrent
 		int seed_rank(session_settings const& s) const;
 
 		storage_mode_t storage_mode() const { return m_storage_mode; }
+		storage_interface* get_storage()
+		{
+			if (!m_owning_storage) return 0;
+			return m_owning_storage->get_storage_impl();
+		}
+
 		// this will flag the torrent as aborted. The main
 		// loop in session_impl will check for this state
 		// on all torrents once every second, and take

include/libtorrent/torrent_handle.hpp

@@ -366,6 +366,8 @@ namespace libtorrent
 		bool resolve_countries() const;
 #endif
 
+		storage_interface* get_storage_impl() const;
+
 		// all these are deprecated, use piece
 		// priority functions instead