Module `Tjr_btree_examples.Open_fd_and_rt_blk`

Functionality to open a store, and handle the root block

module B = Tjr_fs_shared.Blk_id_as_int

val open_ : flgs:Lwt_unix.open_flag list -> fn:string -> (Tjr_fs_shared.Blk_dev_factory.open_fd, Tjr_monad.With_lwt.lwt) Tjr_monad__.Monad_intf.m
val rt_blk : open_fd:< blk_dev_ops : (B.blk_id, Tjr_fs_shared.Buf_as_bigarray.ba_buf, Tjr_monad.With_lwt.lwt) Tjr_fs_shared.blk_dev_ops; .. > -> Intf_.rt_blk