PoGetLightestSystemStateForEject

NTSTATUS __stdcall PoGetLightestSystemStateForEject(
        UINT8 DockBeingEjected,
        UINT8 HotEjectSupported,
        UINT8 WarmEjectSupported,
        _SYSTEM_POWER_STATE *LightestSleepState,
        INT64 a5,
        INT64 a6,
        INT64 a7){
  UINT8 v9; 
  NTSTATUS result; 
  int v11; 
  NTSTATUS v12; 
  unsigned int v13; 
  UINT64 Length; 
  UINT64 Lengtha; 
  UINT64 ResultLength; 
  PVOID Handle; 
  _UNICODE_STRING DestinationString; 
  __int128 KeyValueInformation; 
  __int128 v20; 
  __int128 OutputBuffer[2]; 

  Handle = 0i64;
  LODWORD(ResultLength) = 0;
  *LightestSleepState = PowerSystemUnspecified;
  v9 = HotEjectSupported;
  memset(OutputBuffer, 0, sizeof(OutputBuffer));
  DestinationString = 0i64;
  KeyValueInformation = 0i64;
  v20 = 0i64;
  if( !HotEjectSupported && !WarmEjectSupported )
    v9 = 1;
  if( !DockBeingEjected )
  {
    *LightestSleepState = 2 - (v9 != 0);
    return 0;
  }
  result = PopOpenPowerKey(&Handle);
  if( result >= 0 )
  {
    RtlInitUnicodeString(&DestinationString, L"UndockPowerPolicy");
    LODWORD(Length) = 32;
    v11 = ZwQueryValueKey(
            Handle,
            &DestinationString,
            KeyValuePartialInformation,
            &KeyValueInformation,
            Length,
            &ResultLength);
    ZwClose((_HANDLE)Handle);
    if( v11 >= 0 )
    {
      if( DWORD2(KeyValueInformation) < 8 )
        return -1073741492;
      if( HIDWORD(KeyValueInformation) != 1 )
        return -1073741823;
      if( DWORD2(KeyValueInformation) < 0x10 || (_DWORD)v20 != DWORD2(KeyValueInformation) )
        return -1073741492;
    }
    else
    {
      if( v11 != -1073741772 )
        return v11;
      *(_QWORD *)((char *)&v20 + 4) = 10i64;
    }
    LODWORD(Lengtha) = 32;
    result = ZwPowerInformation(SystemBatteryState, 0i64, 0i64, OutputBuffer, Lengtha);
    v12 = result;
    if( result >= 0 )
    {
      if( DWORD2(OutputBuffer[0]) && (unsigned int)(100 * HIDWORD(OutputBuffer[0])) > HIDWORD(OutputBuffer[0]) )
        v13 = (unsigned int)(100 * HIDWORD(OutputBuffer[0])) / DWORD2(OutputBuffer[0]);
      else
        v13 = 0;
      if( v13 >= DWORD1(v20) && v9 )
      {
        *LightestSleepState = PowerSystemWorking;
      }
      else if( WarmEjectSupported )
      {
        *LightestSleepState = v13 < DWORD2(v20) ? PowerSystemHibernate : PowerSystemSleeping1;
      }
      else
      {
        return -1073741090;
      }
      return v12;
    }
  }
  return result;
}

Referenced by: