source: golgotha/src/i4/time/win_time.cc Tweet

/********************************************************************** <BR>
  This file is part of Crack dot Com's free source code release of
  Golgotha. <a href="http://www.crack.com/golgotha_release"> <BR> for
  information about compiling & licensing issues visit this URL</a> 
  <PRE> If that doesn't help, contact Jonathan Clark at 
  golgotha_source@usa.net (Subject should have "GOLG" in it) 
***********************************************************************/

#ifdef _WINDOWS
#include <windows.h>
#include <windef.h>
#include <winbase.h>
#endif

#include "arch.hh"
#include "time/time.hh"

#include <stdio.h>
#include <stdlib.h>

sw32 i4_win32_start_clock=GetTickCount();

void i4_time_class::get()
{
  time.win32_time.clock=GetTickCount()-i4_win32_start_clock;
  time.win32_time.overflow=0;
}

void i4_time_class::add_milli(sw32 milli_sec)
{
  time.win32_time.clock+=milli_sec;
}



i4_bool i4_time_class::operator <(const i4_time_class &other) const 
{ 
  return (other.time.win32_time.clock<time.win32_time.clock);
}



i4_bool i4_time_class::operator >(const i4_time_class &other) const 
{ 
  return (other.time.win32_time.clock<time.win32_time.clock);
}


sw32 i4_time_class::milli_diff(const i4_time_class &past_time) const
{
  return (sw32)time.win32_time.clock-(sw32)past_time.time.win32_time.clock;
}

i4_time_class::i4_time_class(sw32 milli_sec)
{
  time.win32_time.clock=milli_sec - i4_win32_start_clock;
}


w64 i4_get_system_clock()
{
  w32 lo, hi;
  __asm
    {
      __emit 0x0F
      __emit 0x31
      mov lo, eax
      mov hi, edx
    };
  return (((w64)hi)<<32) | lo;
}

int i4_win_clocks_per_sec = -1;

int i4_get_clocks_per_second()
{
  if (i4_win_clocks_per_sec==-1)
  {
    w64 _start = i4_get_system_clock();
  
    i4_time_class now,start;
    while (now.milli_diff(start) < 1000) now.get();
  
    w64 end = i4_get_system_clock();

    i4_win_clocks_per_sec = end - _start;
  }
  
  return i4_win_clocks_per_sec;
}

void i4_sleep(int seconds) { Sleep(seconds*1000); }
void i4_milli_sleep(int milli_seconds) { Sleep(milli_seconds); }