`sig
type t
type error_type = Null_retry | Too_many_nulls | Exception of string * exn
type lnum = Known of int | Unknown
type result =
Success of Linebuf.lnum * string
| Nothing_available
| Error of Linebuf.error_type
| Fatal_error of string * exn
exception File_truncated_or_deleted
val create :
?pos:Int64.t ->
?close_on_eof:bool ->
?null_hack:[ `Off | `Retry | `Retry_then_fail ] ->
?eprint_nulls:bool ->
?follow_deletes:bool ->
?signal_on_truncate_or_delete:bool -> string -> Linebuf.t
val close : Linebuf.t -> unit
val is_closed : Linebuf.t -> bool
val try_read : Linebuf.t -> string option
val try_read_lnum : Linebuf.t -> (Linebuf.lnum * string) option
val try_read_lnum_verbose : Linebuf.t -> Linebuf.result
val read : Linebuf.t -> string
val tail : Linebuf.t -> unit
val unsafe_tail : Linebuf.t -> unit
val name : Linebuf.t -> string
val reset : Linebuf.t -> unit
end`