Module Unix.LargeFile

File operations on large files. This sub-module provides 64-bit variants of the functions lseek (for positioning a file descriptor), truncate and ftruncate (for changing the size of a file), and stat, lstat and fstat (for obtaining information on files). These alternate functions represent positions and sizes by 64-bit integers (type int64) instead of regular integers (type int), thus allowing operating on files whose sizes are greater than max_int.

val lseek : file_descr -> int64 -> seek_command -> int64

See lseek.

val truncate : string -> int64 -> unit

See truncate.

val ftruncate : file_descr -> int64 -> unit

See ftruncate.

type stats = {
st_dev : int;(*

Device number

*)
st_ino : int;(*

Inode number

*)
st_kind : file_kind;(*

Kind of the file

*)
st_perm : file_perm;(*

Access rights

*)
st_uid : int;(*

User id of the owner

*)
st_gid : int;(*

Group ID of the file's group

*)
st_rdev : int;(*

Device ID (if special file)

*)
st_size : int64;(*

Size in bytes

*)
st_atime : float;(*

Last access time

*)
st_mtime : float;(*

Last modification time

*)
st_ctime : float;(*

Last status change time

*)
}
val stat : string -> stats
val lstat : string -> stats
val fstat : file_descr -> stats