lwt

Promises and event-driven I/O
Library lwt.unix
Module Lwt_unix . LargeFile
val lseek : file_descr -> int64 -> seek_command -> int64 Lwt.t
val truncate : string -> int64 -> unit Lwt.t
val ftruncate : file_descr -> int64 -> unit Lwt.t
type stats = Unix.LargeFile.stats = {
st_dev : int;
st_ino : int;
st_kind : file_kind;
st_perm : file_perm;
st_uid : int;
st_gid : int;
st_rdev : int;
st_size : int64;
st_atime : float;
st_mtime : float;
st_ctime : float;
}
val stat : string -> stats Lwt.t
val lstat : string -> stats Lwt.t
val fstat : file_descr -> stats Lwt.t
val file_exists : string -> bool Lwt.t

file_exists name tests if a file named name exists.

Note that file_exists behaves similarly to Sys.file_exists:

  • “file” is interpreted as “directory entry” in this context
  • file_exists name will return false in circumstances that would make stat raise a Unix.Unix_error exception.