reactos/dll/win32/kernel32/client/perfcnt.c

   1 /*
   2  * COPYRIGHT:            See COPYING in the top level directory
   3  * PROJECT:              ReactOS Win32 Base API
   4  * FILE:                 dll/win32/kernel32/client/perfcnt.c
   5  * PURPOSE:              Performance Counter
   6  * PROGRAMMER:           Eric Kohl
   7  */
   8
   9 /* INCLUDES *******************************************************************/
  10
  11 #include <k32.h>
  12
  13 #define NDEBUG
  14 #include <debug.h>
  15
  16 /* FUNCTIONS ******************************************************************/
  17
  18 /*
  19  * @implemented
  20  */
  21 BOOL
  22 WINAPI
  23 QueryPerformanceCounter(OUT PLARGE_INTEGER lpPerformanceCount)
  24 {
  25     LARGE_INTEGER Frequency;
  26     NTSTATUS Status;
  27
  28     Status = NtQueryPerformanceCounter(lpPerformanceCount, &Frequency);
  29     if (Frequency.QuadPart == 0) Status = STATUS_NOT_IMPLEMENTED;
  30
  31     if (!NT_SUCCESS(Status))
  32     {
  33         BaseSetLastNTError(Status);
  34         return FALSE;
  35     }
  36
  37     return TRUE;
  38 }
  39
  40 /*
  41  * @implemented
  42  */
  43 BOOL
  44 WINAPI
  45 QueryPerformanceFrequency(OUT PLARGE_INTEGER lpFrequency)
  46 {
  47     LARGE_INTEGER Count;
  48     NTSTATUS Status;
  49
  50     Status = NtQueryPerformanceCounter(&Count, lpFrequency);
  51     if (lpFrequency->QuadPart == 0) Status = STATUS_NOT_IMPLEMENTED;
  52
  53     if (!NT_SUCCESS(Status))
  54     {
  55         BaseSetLastNTError(Status);
  56         return FALSE;
  57     }
  58
  59     return TRUE;
  60 }
  61
  62 /* EOF */