timing.h

   1 /*
   2 Simple helper macros to time blocks or statements.
   3
   4 Copyright (C) 2007 Frank Richter
   5
   6 This program is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  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.
  14
  15 See the GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20
  21 */
  22
  23 #ifndef __TIMING_H__
  24 #define __TIMING_H__
  25
  26 #if defined(DO_TIMING)
  27
  28 #define TIMING_BEGIN    double _timing_end_, _timing_start_ = Sys_DoubleTime();
  29 #define TIMING_END_STR(S)               \
  30   _timing_end_ = Sys_DoubleTime();      \
  31   Con_Printf ("%s: %.3g s\n", S, _timing_end_ - _timing_start_);
  32 #define TIMING_END      TIMING_END_STR(__FUNCTION__)
  33
  34 #define TIMING_INTERMEDIATE(S)                                          \
  35   {                                                                     \
  36     double currentTime = Sys_DoubleTime();                              \
  37     Con_Printf ("%s: %.3g s\n", S, currentTime - _timing_start_);       \
  38   }
  39
  40 #define TIMING_TIMESTATEMENT(Stmt)      \
  41   {                                     \
  42     TIMING_BEGIN                        \
  43     Stmt;                               \
  44     TIMING_END_STR(#Stmt);              \
  45   }
  46
  47 #else
  48
  49 #define TIMING_BEGIN
  50 #define TIMING_END_STR(S)
  51 #define TIMING_END
  52 #define TIMING_INTERMEDIATE(S)
  53 #define TIMING_TIMESTATEMENT(Stmt)      Stmt
  54
  55 #endif
  56
  57 #endif // __TIMING_H__
  58