timer.h

   1 /* File: timer.h
   2    Date: 9 December 1996
   3    Description: timing library routines
   4    Copyright: A. MacFarlane (1996)
   5    Altered 27/2/2007 for terabtye web efficiency experiments
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation.
  10
  11 This program is distributed in the hope that it will be useful
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19
  20 */
  21
  22 #include <sys/types.h>
  23 #include <sys/time.h>
  24 #include "timerstruct.h"       /* timer data structures */
  25
  26
  27 extern void diff_time( struct timeval finish,
  28                        struct timeval start,
  29                        struct timeval *cost );
  30 /* calculate the difference in time between start and finish (in whole and
  31    decimal parts) */
  32
  33 extern void accumtime( struct timeval *current,
  34                        struct timeval newv );
  35 /* accumulate time from new into current */
  36
  37 extern void accumcost( COST *cur_cost, COST new_cost );
  38 /* accumulate costs form new in cur */
  39
  40 extern void Init_Cost( COST *cost );
  41 /* initialise cost structure */
  42
  43 extern void Disp_Time( struct timeval timebefore, struct timeval timeafter );
  44 /* display the time lapse between before and after */
  45
  46 extern void Print_Costs( COST costs );
  47   /* print cost information to standard error */
  48
  49 extern float time_real( struct timeval t );
  50 /* convert struct timeval into a real time in one figure */
  51