rom/timer/getuptime.c

   1 /*
   2     Copyright © 1995-2018, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: GetUpTime() - Get time since machine was powered on.
   6     Lang: english
   7 */
   8
   9 #include <proto/exec.h>
  10
  11 #include "timer_intern.h"
  12
  13 /*****************************************************************************
  14
  15     NAME */
  16 #include <devices/timer.h>
  17 #include <proto/timer.h>
  18
  19         AROS_LH1(void, GetUpTime,
  20
  21 /*  SYNOPSIS */
  22         AROS_LHA(struct timeval *, dest, A0),
  23
  24 /*  LOCATION */
  25         struct Device *, TimerBase, 12, Timer)
  26
  27 /*  FUNCTION
  28         GetUpTime() will fill in the supplied timeval with the current
  29         uptime.
  30
  31     INPUTS
  32         dest    -   A pointer to the timeval you want the time stored in.
  33
  34     RESULT
  35         The timeval "dest" will be filled with the current uptime. This timer
  36         cannot be changed by the software and thus can be considered to be a
  37         monotonic clock..
  38
  39     NOTES
  40         This function is safe to call from interrupts.
  41
  42     EXAMPLE
  43
  44     BUGS
  45
  46     SEE ALSO
  47         TR_GETSYSTIME, TR_SETSYSTIME, GetSysTime
  48
  49     INTERNALS
  50
  51     HISTORY
  52         05-08-2018  schulz   Implemented.
  53
  54 *****************************************************************************/
  55 {
  56     AROS_LIBFUNC_INIT
  57
  58     Disable();
  59
  60     /* Query the hardware */
  61     EClockUpdate(GetTimerBase(TimerBase));
  62     dest->tv_secs  = GetTimerBase(TimerBase)->tb_Elapsed.tv_secs;
  63     dest->tv_micro = GetTimerBase(TimerBase)->tb_Elapsed.tv_micro;
  64
  65     Enable();
  66
  67     AROS_LIBFUNC_EXIT
  68 } /* GetUpTime */