lib/crtdll/time/clock.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/crtdll/time/clock.c
   5  * PURPOSE:     Get elapsed time
   6  * PROGRAMER:   Boudewijn Dekker
   7  * UPDATE HISTORY:
   8  *              28/12/98: Created
   9  */
  10
  11 #include <windows.h>
  12 #include <crtdll/time.h>
  13 #include <crtdll/internal/file.h>
  14
  15 VOID STDCALL GetSystemTimeAsFileTime(LPFILETIME  lpSystemTimeAsFileTime );
  16
  17 clock_t clock ( void )
  18 {
  19         FILETIME  CreationTime;
  20         FILETIME  ExitTime;
  21         FILETIME  KernelTime;
  22         FILETIME  UserTime;
  23
  24         DWORD Remainder;
  25
  26         if ( !GetProcessTimes(GetCurrentProcess(),&CreationTime,&ExitTime,&KernelTime,&UserTime ) )
  27                 return -1;
  28
  29
  30         return FileTimeToUnixTime( &KernelTime,&Remainder ) + FileTimeToUnixTime( &UserTime,&Remainder );
  31 }