#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <ddk/ntddk.h>

int
main (int argc, char* argv[])
{
  NTSTATUS status;
  HANDLE timer;
  LARGE_INTEGER duetime;
  PTIMER_BASIC_INFORMATION tbi;
  int cnt = 10, i;
  long long lastTimer = 0;

  duetime.QuadPart = -10000000000LL;
  tbi = (PTIMER_BASIC_INFORMATION)
	calloc (cnt + 1, sizeof (TIMER_BASIC_INFORMATION));
  if (!tbi)
    {
      printf ("malloc failed\n:");
      return 1;
    }
  status = NtCreateTimer (&timer, TIMER_ALL_ACCESS, NULL, NotificationTimer);
  if (!NT_SUCCESS (status))
    {
      printf ("NtCreateTimer: %p\n", status);
      return 1;
    }
  status = NtSetTimer (timer, &duetime, NULL, NULL, FALSE, 1000000L, NULL);
  if (!NT_SUCCESS (status))
    {
      printf ("NtSetTimer: %p\n", status);
      return 1;
    }
  for (i = 0; i < cnt; ++i)
    {
      do
	{
	  NtQueryTimer (timer, TimerBasicInformation, tbi + i, sizeof *tbi,
			NULL);
	  //Sleep(1);
	}
      while (tbi[i].TimeRemaining.QuadPart
	     == tbi[i - 1].TimeRemaining.QuadPart);
    }
  NtCancelTimer (timer, NULL);
  status = NtQueryTimer (timer, TimerBasicInformation, tbi + i, sizeof *tbi,
			 NULL);
  if (!NT_SUCCESS (status))
    printf ("NtQueryTimer: %p\n", status);
  NtClose (timer);
  for (i = 1; i < cnt + 1; ++i)
    printf("Timer: %lld (%llx), dTimer: %lld usec\n",
	   tbi[i].TimeRemaining.QuadPart,
	   tbi[i].TimeRemaining.QuadPart,
	   (tbi[i - 1].TimeRemaining.QuadPart
	    - tbi[i].TimeRemaining.QuadPart) / 10);
  return 0;
}