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Module Time_ns

Time represented as an Int63.t number of nanoseconds since the epoch.

See Core.Time_ns for important user documentation.

Internally, arithmetic is not overflow-checked. Instead, overflows are silently ignored, as for int arithmetic. Conversions may (or may not) raise if prior arithmetic operations overflowed.

Signature

module Span : sig .. end
type t = private Core_int63.t
val bin_t : t Bin_prot.Type_class.t
val bin_read_t : t Bin_prot.Read.reader
val __bin_read_t__ : (int -> t) Bin_prot.Read.reader
val bin_reader_t : t Bin_prot.Type_class.reader
val bin_size_t : t Bin_prot.Size.sizer
val bin_write_t : t Bin_prot.Write.writer
val bin_writer_t : t Bin_prot.Type_class.writer
val typerep_of_t : t Typerep_lib.Std.Typerep.t
val typename_of_t : t Typerep_lib.Std.Typename.t
val compare : t -> t -> int
include Comparable.Infix with type t := t
type t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
include Equal.S with type t := t
type t
val equal : t Equal.equal
module Alternate_sexp : sig .. end
Note that we expose a sexp format that is not the one exposed in Core.
val epoch : t

Unix epoch (1970-01-01 00:00:00 UTC)

val min_value : t
val max_value : t
val now : unit -> t
val add : t -> Span.t -> t

overflows silently

val sub : t -> Span.t -> t

overflows silently

overflows silently

val diff : t -> t -> Span.t

overflows silently

overflows silently

val abs_diff : t -> t -> Span.t

overflows silently

overflows silently

val max : t -> t -> t

overflows silently

val to_span_since_epoch : t -> Span.t
val of_span_since_epoch : Span.t -> t
val to_int63_ns_since_epoch : t -> Core_int63.t
val of_int63_ns_since_epoch : Core_int63.t -> t
val to_int_ns_since_epoch : t -> int

Will raise on 32-bit platforms. Consider to_int63_ns_since_epoch instead.

val of_int_ns_since_epoch : int -> t
val next_multiple : ?can_equal_after:bool -> base:t -> after:t -> interval:Span.t -> unit -> t

next_multiple ~base ~after ~interval returns the smallest time of the form:


      time = base + k * interval

where k >= 0 and time > after. It is an error if interval <= 0.

Supplying ~can_equal_after:true allows the result to satisfy time >= after.

Overflows silently.