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|
(***********************************************************************)
(* mTimer.ml - Simple timer module *)
(* *)
(* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, *)
(* 2011, 2012, 2013 Yaron Minsky and Contributors *)
(* *)
(* This file is part of SKS. SKS is free software; you can *)
(* redistribute it and/or modify it under the terms of the GNU General *)
(* Public License as published by the Free Software Foundation; either *)
(* version 2 of the License, or (at your option) any later version. *)
(* *)
(* This program is distributed in the hope that it will be useful, but *)
(* WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *)
(* General Public License for more details. *)
(* *)
(* You should have received a copy of the GNU General Public License *)
(* along with this program; if not, write to the Free Software *)
(* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *)
(* USA or see <http://www.gnu.org/licenses/>. *)
(***********************************************************************)
open StdLabels
open MoreLabels
type t = { mutable start_time : float;
mutable stop_time : float;
mutable running : bool;
}
let create () = { start_time = 0.0;
stop_time = 0.0;
running = false;
}
let reset timer =
timer.start_time <- 0.0;
timer.stop_time <- 0.0;
timer.running <- false
let start timer =
( timer.start_time <- Unix.gettimeofday ();
timer.running <- true )
let stop timer =
if not timer.running then failwith "Timer stopped when not running."
else ( timer.stop_time <- Unix.gettimeofday ();
timer.running <- false )
let read timer =
if timer.running
then failwith "Timer read at wrong time"
else timer.stop_time -. timer.start_time
let read_ms timer = 1000.0 *. (read timer)
let read_us timer = (1000.0 *. 1000.0) *. (read timer)
|
