Library
Module
Module type
Parameter
Class
Class type
POSIX clock for MirageOS using Unix interfaces
Clock counting time since the Unix epoch. Subject to adjustment by e.g. NTP.
include Mirage_clock_lwt.PCLOCK
include Mirage_device.S with type t = unit with type 'a io = 'a Lwt.t
type 'a io = 'a Lwt.t
The type for potentially blocking I/O operation
val now_d_ps : t -> int * int64
now_d_ps ()
is (d, ps)
representing the POSIX time occuring at d
* 86'400e12 + ps
POSIX picoseconds from the epoch 1970-01-01 00:00:00 UTC. ps
is in the range [0
;86_399_999_999_999_999L
].
val current_tz_offset_s : t -> int option
current_tz_offset_s ()
is the clock's current local time zone offset to UTC in seconds, if known. This is the duration local time - UTC time in seconds.
val period_d_ps : t -> (int * int64) option
period_d_ps ()
is Some (d, ps)
representing the clock's picosecond period d
* 86'400e12 + ps
, if known. ps
is in the range [0
;86_399_999_999_999_999L
].