Private.RawRaw wraps a file-descriptor with an file-format used internally by Index. The format contains the following header fields:
val v : Unix.file_descr -> tConstruct a raw value from a file descriptor.
val unsafe_write : t -> off:Optint.Int63.t -> string -> int -> int -> unitval unsafe_read : t -> off:Optint.Int63.t -> len:int -> bytes -> intval fsync : t -> unitval close : t -> unitval fstat : t -> Unix.statsmodule Version : sig ... endmodule Offset : sig ... endmodule Generation : sig ... endmodule Fan : sig ... endmodule Header : sig ... end