src/common/timercmn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        timercmn.cpp
   3 // Purpose:     Common timer implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 //#pragma implementation "timercmn.h"
  14 #pragma implementation
  15 #endif
  16
  17 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21 #pragma hdrstop
  22 #endif
  23
  24 #ifndef WX_PRECOMP
  25 #include "wx/defs.h"
  26 #include "wx/list.h"
  27 #endif
  28
  29 #include "wx/timer.h"
  30
  31 #if defined(__SVR4__) && !defined(__SYSV__)
  32 #define __SYSV__
  33 #endif
  34
  35 #include <time.h>
  36
  37 #ifndef __WXMAC__
  38 #include <sys/types.h>
  39 #endif
  40
  41 #if (!defined(__SC__) && !defined(__SGI__) && !defined(__GNUWIN32__) && !defined(__MWERKS__)) || defined(__MINGW32__)
  42 #include <sys/timeb.h>
  43 #endif
  44
  45 #if defined(__linux__) || defined(__SVR4__) || defined(__SYSV__) || defined(__SGI__) || \
  46     defined(__ALPHA__) || defined(__GNUWIN32__) || defined(__FreeBSD__) || defined(__NetBSD__) || \
  47     defined(__SALFORDC__) || defined(__EMX__)
  48 #include <sys/time.h>
  49 #endif
  50
  51 #ifdef __MINGW32__
  52 #include "windows.h"
  53 #endif
  54
  55 #if defined(__SUN__) || defined(__OSF__) || defined(__FreeBSD__)
  56 // At least on Sun, ftime is undeclared.
  57 // Need to be verified on other platforms.
  58 extern "C" int ftime(struct timeb *tp);
  59 //extern "C" int gettimeofday(struct timeval *tp, void *);
  60 // extern "C" time_t time(time_t);
  61 // #include <sys/timeb.h>
  62 #if defined(__SVR4__) && !defined(__ALPHA__)
  63 // ditto for gettimeofday on Solaris 2.x.
  64 extern "C" int gettimeofday(struct timeval *tp, void *);
  65 #endif
  66 #endif
  67
  68 /*
  69  * Timer functions
  70  *
  71  */
  72
  73 long wxStartTime = 0;
  74 void wxStartTimer(void)
  75 {
  76   wxStartTime=wxGetCurrentMTime();
  77 }
  78
  79 // Returns elapsed time in milliseconds
  80 long wxGetElapsedTime(bool resetTimer)
  81 {
  82   long oldTime = wxStartTime;
  83   long newTime=wxGetCurrentMTime();
  84
  85   if (resetTimer) wxStartTime = newTime;
  86   return newTime - oldTime;
  87 }
  88
  89
  90 // Get number of seconds since 00:00:00 GMT, Jan 1st 1970.
  91 long wxGetCurrentTime(void)
  92 {
  93   return wxGetCurrentMTime()/1000;
  94 }
  95
  96 // return GMT time in millisecond
  97 long wxGetCurrentMTime()
  98 {
  99 #if defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || \
 100     (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
 101   struct timeval tp;
 102 #if defined(__SYSV__) || (defined (__GNUWIN32__) && !defined (__MINGW32__))
 103   gettimeofday(&tp, (struct timezone *)NULL);
 104 #else
 105   gettimeofday(&tp);
 106 #endif
 107   return (1000*tp.tv_sec + tp.tv_usec / 1000);
 108 #elif (defined(__SC__) || defined(__SGI__) || defined(___BSDI__) || defined(__ALPHA__) || \
 109   defined(__MINGW32__)|| defined(__MWERKS__) || defined(__FreeBSD__))
 110   time_t t0;
 111   struct tm *tp;
 112   time(&t0);
 113   tp = localtime(&t0);
 114   return 1000*(60*(60*tp->tm_hour+tp->tm_min)+tp->tm_sec);
 115 #else
 116   struct timeb tp;
 117   ftime(&tp);
 118   return (1000*tp.time + tp.millitm);
 119 #endif
 120 }
 121
 122 //---------------
 123 // wxChrono class
 124 // This class encapsulates the above fonctions,
 125 // such that several wxChrono can be created
 126 // simultaneously
 127
 128 wxChrono::wxChrono()
 129 {
 130   Start();
 131 }
 132
 133 void wxChrono::Start(long t)
 134 {
 135   m_t0=wxGetCurrentMTime()-t;
 136   m_pause=0;
 137 }
 138
 139 void wxChrono::Pause()
 140 {
 141   m_pause=wxGetCurrentMTime()-m_t0;
 142 }
 143
 144 void wxChrono::Resume()
 145 {
 146   m_t0=wxGetCurrentMTime()-m_pause;
 147   m_pause=0;
 148 }
 149
 150 long wxChrono::Time()
 151 {
 152   if (m_pause) return m_pause;
 153   return wxGetCurrentMTime()-m_t0;
 154 }
 155
 156
 157
 158 // EXPERIMENTAL: comment this out if it doesn't compile.
 159 #ifndef __VMS__
 160 bool wxGetLocalTime(long *timeZone, int *dstObserved)
 161 {
 162 #if defined(__MINGW32__)
 163   time_t t0;
 164   struct tm *tp;
 165   time(&t0);
 166   tp = localtime(&t0);
 167 # if __GNUC__ == 2 && __GNUC_MINOR__ <= 8
 168   // gcc 2.8.x or earlier
 169   timeb tz;
 170   ftime(& tz);
 171   *timeZone = tz._timezone;
 172 # else
 173   // egcs or gcc 2.95
 174   *timeZone = _timezone; // tp->tm_gmtoff; // ???
 175 # endif
 176   *dstObserved = tp->tm_isdst;
 177 #else
 178 // not mingw32...
 179 #if (((defined(__SYSV__) && !defined(__HPUX__)) || defined(__MSDOS__) || defined(__WXMSW__) || defined(__WXPM__)) \
 180    && !defined(__GNUWIN32__) && !defined(__MWERKS__) )
 181 #  if defined(__BORLANDC__)
 182   /* Borland uses underscores */
 183   *timeZone = _timezone;
 184   *dstObserved = _daylight;
 185 #  elif defined(__SALFORDC__)
 186   *timeZone = _timezone;
 187   *dstObserved = daylight;
 188 #  elif defined(__VISAGECPP__)
 189   *timeZone = _timezone;
 190   *dstObserved = daylight;
 191 #  else
 192   *timeZone = timezone;
 193   *dstObserved = daylight;
 194 #  endif
 195 #elif defined(__xlC__) || defined(__AIX__) || defined(__SVR4__) || defined(__SYSV__) || defined(__MWERKS__) || (defined(__GNUWIN32__) && !defined(__MINGW32__)) // || defined(__AIXV3__)
 196 #  ifndef __MWERKS__ // shouldn't this be one scope below ?
 197   struct timeval tp;
 198 #  endif
 199 #  if defined(__SYSV__) || (defined(__GNUWIN32__) && !defined(__MINGW32))
 200   struct timezone tz;
 201   gettimeofday(&tp, &tz);
 202   *timeZone = 60*(tz.tz_minuteswest);
 203   *dstObserved = tz.tz_dsttime;
 204 #  else
 205   time_t t0;
 206   struct tm *tp;
 207   time(&t0);
 208   tp = localtime(&t0);
 209 #  ifndef __MWERKS__
 210   *timeZone = tp->tm_gmtoff; // ???
 211 #  else
 212   *timeZone = 0 ;
 213 #  endif
 214   *dstObserved = tp->tm_isdst;
 215 #endif
 216 #elif defined(__WXSTUBS__)
 217   return FALSE;
 218 #else
 219 // #error wxGetLocalTime not implemented.
 220   struct timeval tp;
 221   struct timezone tz;
 222   gettimeofday(&tp, &tz);
 223   *timeZone = 60*(tz.tz_minuteswest);
 224   *dstObserved = tz.tz_dsttime;
 225 #endif
 226 #endif
 227   // __MINGW32__
 228   return TRUE;
 229 }
 230 #endif