qubes-mirage-firewall/mirage_logs.ml
2015-12-30 11:07:17 +00:00

36 lines
1.0 KiB
OCaml

(* Copyright (C) 2015, Thomas Leonard <thomas.leonard@unikernel.com>
See the README file for details. *)
let buf = Buffer.create 200
let log_fmt = Format.formatter_of_buffer buf
let string_of_level =
let open Logs in function
| App -> "APP"
| Error -> "ERR"
| Warning -> "WRN"
| Info -> "INF"
| Debug -> "DBG"
let fmt_timestamp tm =
let open Clock in
Printf.sprintf "%04d-%02d-%02d %02d:%02d.%02d"
(tm.tm_year + 1900) (tm.tm_mon + 1) tm.tm_mday tm.tm_hour tm.tm_min tm.tm_sec
module Make (C : V1.CLOCK) = struct
let init_logging () =
let report src level k fmt msgf =
let now = C.time () |> Clock.gmtime |> fmt_timestamp in
let lvl = string_of_level level in
let k _ =
let msg = Buffer.contents buf in
Buffer.clear buf;
output_string stderr (msg ^ "\n");
flush stderr;
MProf.Trace.label msg;
k () in
msgf @@ fun ?header:_ ?tags:_ ->
Format.kfprintf k log_fmt ("%s: %s [%s] " ^^ fmt) now lvl (Logs.Src.name src) in
Logs.set_reporter { Logs.report }
end