(*
    ||M||  This file is part of HELM, an Hypertextual, Electronic        
    ||A||  Library of Mathematics, developed at the Computer Science     
    ||T||  Department, University of Bologna, Italy.                     
    ||I||                                                                
    ||T||  HELM is free software; you can redistribute it and/or         
    ||A||  modify it under the terms of the GNU General Public License   
    \   /  version 2 or (at your option) any later version.              
     \ /   This software is distributed as is, NO WARRANTY.              
      V_______________________________________________________________ *)

module KP = Printf

module L = Log

let level = 1 

let old = [|0.0; 0.0|]

let stamp_ix = 0

let lap_ix = 1

let gmtime msg =
   let gmt = Unix.gmtime (Unix.time ()) in
   let yy = gmt.Unix.tm_year + 1900 in
   let mm = gmt.Unix.tm_mon + 1 in
   let dd = gmt.Unix.tm_mday in
   let h = gmt.Unix.tm_hour in
   let m = gmt.Unix.tm_min in
   let s = gmt.Unix.tm_sec in
   let str = KP.sprintf "UTC TIME STAMP (%s): %u/%u/%u %u:%u:%u" msg yy mm dd h m s in
   L.warn level str

let utime_stamp msg = 
   let times = Unix.times () in
   let stamp = times.Unix.tms_utime in
   let lap = stamp -. old.(stamp_ix) in
   let str = KP.sprintf "USR TIME STAMP (%s): %f (%f)" msg stamp lap in
   L.warn level str;
   old.(stamp_ix) <- stamp

IFDEF PROFV THEN

let utime_lap msg = 
   let times = Unix.times () in
   let stamp = times.Unix.tms_utime in
   if msg <> "" then begin
      let lap = stamp -. old.(lap_ix) in
      let str = KP.sprintf "USR TIME LAP (%s): %f" msg lap in
      L.warn level str
   end;
   old.(lap_ix) <- stamp

END