package opentelemetry

  1. Overview
  2. Docs
Core library for instrumentation and serialization for https://opentelemetry.io

Install 

dune-project
 Dependency

github.com Readme Changelog Edit opam file Versions (17)

Authors

  1. O
    ocaml-tracing
  2. E
    ELLIOTTCABLE <opam@ell.io>
  3. T
    the imandra team

Maintainers

  1. O
    ocaml-tracing

Sources

opentelemetry-0.90.tbz
sha256=c3989bb678f57e5276209d3c60afb29cdca33122288de55e591fbbe2e50a662c
sha512=ba8339256c9b2d8c99c8304991a3047f280a01e492add4cf82bf1d43dfa51e790366c09c6901c0501b8b8e1f810c6e128e33dd33542d785013407f642ade4eea

doc/src/opentelemetry.util/timestamp_ns.ml.html

Source file timestamp_ns.ml

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(** Unix timestamp.

    These timestamps measure time since the Unix epoch (jan 1, 1970) UTC in
    nanoseconds. *)

type t = int64

open struct
  let ns_in_a_day = Int64.(mul 1_000_000_000L (of_int (24 * 3600)))
end

let pp_debug out (self : t) =
  let d = Int64.(to_int (div self ns_in_a_day)) in
  let ns = Int64.(rem self ns_in_a_day) in
  let ps = Int64.(mul ns 1_000L) in
  match Ptime.Span.of_d_ps (d, ps) with
  | None -> Format.fprintf out "ts: <%Ld ns>" self
  | Some span ->
    (match Ptime.add_span Ptime.epoch span with
    | None -> Format.fprintf out "ts: <%Ld ns>" self
    | Some ptime -> Ptime.pp_rfc3339 ~space:false ~frac_s:6 () out ptime)