Sam.MakeIOval read :
?start:Pos.t ->
Future.Reader.t ->
(header * alignment Core_kernel.Or_error.t Future.Pipe.Reader.t)
Core_kernel.Or_error.t
Future.Deferred.tval write :
Future.Writer.t ->
?header:header ->
alignment Future.Pipe.Reader.t ->
unit Future.Deferred.tval write_file :
?perm:int ->
?append:bool ->
string ->
?header:header ->
alignment Future.Pipe.Reader.t ->
unit Future.Deferred.t