PiUEventNotifyUserMode

__int64 __fastcall PiUEventNotifyUserMode(__int64 a1){
  unsigned int v2; 
  char v3; 
  __int64 v4; 
  bool IsDeviceEventVetoable; 
  bool v6; 
  VOID *PoolWithTag; 
  INT64 v8; 
  _FAST_MUTEX *v9; 
  _DWORD *v10; 
  __int64 v11; 
  INT64 *v12; 
  PVOID *v13; 
  WORK_QUEUE_ITEM *v14; 
  WCHAR *v16; 
  _KEVENT *v17; 
  int v18; 
  int v19; 
  __int64 v20; 
  __int64 v21; 
  _QWORD *v22; 
  PVOID Object[2]; 
  UINT8 DeviceNeedsInstall; 
  size_t Size; 
  union _LARGE_INTEGER Timeout; 
  v2 = 0;
  v3 = 0;
  DeviceNeedsInstall = 0;
  if( PnpShutdownEvent.Header.SignalState )
    return(unsigned int)-1073741431;
  if( *(_DWORD *)(a1 + 128) == 4 )
  {
    v16 = (WCHAR *)(a1 + 160);
    if( PiUEventDeviceNeedsInstall((PWCHAR)(a1 + 160), &DeviceNeedsInstall) >= 0 )
    {
      if( DeviceNeedsInstall )
        PiUEventSendDeviceInstallNotification(v16);
    }
  }
  if( PiUEventShouldQueueEvent((_PNP_DEVICE_EVENT_ENTRY *)a1) )
  {
    IsDeviceEventVetoable = PiUEventIsDeviceEventVetoable(v4);
    LODWORD(Size) = *(_DWORD *)(a1 + 148) + 72;
    v6 = IsDeviceEventVetoable;
    PoolWithTag = ExAllocatePoolWithTag(PagedPool, (unsigned int)Size, 0x59706E50ui64);
    v8 = (INT64)PoolWithTag;
    if( !PoolWithTag )
      return(unsigned int)-1073741670;
    memset((INT64)PoolWithTag, 0i64);
    v9 = (_FAST_MUTEX *)ExAllocatePoolWithTag(NonPagedPoolNx, 0x38ui64, 0x59706E50ui64);
    *(_QWORD *)(v8 + 16) = v9;
    if( !v9 )
    {
LABEL_38:
      PiUEventFreeEventEntry((PVOID)v8);
      return(unsigned int)-1073741670;
    }
    KeInitializeGuardedMutex(v9);
    *(_DWORD *)(v8 + 56) = 1;
    *(_BYTE *)(v8 + 69) = v6;
    v10 = *(_DWORD **)(a1 + 48);
    if( v6 )
    {
      *(_QWORD *)(v8 + 32) = v10;
      v20 = *(_QWORD *)(a1 + 56);
      *(_QWORD *)(v8 + 40) = v20;
      **(_WORD **)(v20 + 8) = 0;
      **(_WORD **)(v8 + 40) = 0;
      **(_DWORD **)(v8 + 32) = 0;
    }
    else
    {
      if( v10 )
        *v10 = 0;
      v11 = *(_QWORD *)(a1 + 56);
      if( v11 )
      {
        **(_WORD **)(v11 + 8) = 0;
        **(_WORD **)(a1 + 56) = 0;
      }
    }
    if( *(_QWORD *)(a1 + 24) || v6 )
    {
      v3 = 1;
      v17 = (_KEVENT *)ExAllocatePoolWithTag(NonPagedPoolNx, 0x18ui64, 0x59706E50ui64);
      *(_QWORD *)(v8 + 24) = v17;
      if( !v17 )
      {
LABEL_36:
        if( *(_QWORD *)(v8 + 24) )
          PiUEventDereferenceEventEntry(v8);
        goto LABEL_38;
      }
      KeInitializeEvent(v17, NotificationEvent, 0);
      PiUEventReferenceEventEntry(v8);
    }
    *(_BYTE *)(v8 + 68) = v3;
    *(_DWORD *)(v8 + 64) = *(_DWORD *)(a1 + 148) + 8;
    memmove((UINT8 *)(v8 + 72), (UINT8 *)(a1 + 112), *(unsigned int *)(a1 + 148));
    PiUEventCacheObjectProperties(v8);
    ExAcquireFastMutex(&PiUEventUsermodeEventQueueLock);
    v12 = (INT64 *)qword_140C45028;
    v13 = (PVOID *)PiUEventUsermodeEventQueue;
    if( *(PVOID **)qword_140C45028 != &PiUEventUsermodeEventQueue )
      goto LABEL_42;
    *(_QWORD *)v8 = &PiUEventUsermodeEventQueue;
    *(_QWORD *)(v8 + 8) = v12;
    *v12 = v8;
    qword_140C45028 = v8;
    KeReleaseGuardedMutex(&PiUEventUsermodeEventQueueLock);
    if( v13 != &PiUEventUsermodeEventQueue )
      goto LABEL_17;
    v14 = (WORK_QUEUE_ITEM *)ExAllocatePoolWithTag(NonPagedPoolNx, 0x20ui64, 0x59706E50ui64);
    if( v14 )
    {
      v14->Parameter = v14;
      v14->WorkerRoutine = (void(__fastcall *)(void *))PiUEventProcessEventWorker;
      v14->List.Flink = 0i64;
      ExQueueWorkItem(v14, NormalWorkQueue);
LABEL_17:
      if( v3 )
      {
        Object[0] = &PnpShutdownEvent;
        Object[1] = *(PVOID *)(v8 + 24);
        Timeout.QuadPart = -300000000i64;
        KeWaitForMultipleObjects((_BYTE *)2, Object, WaitAny, Executive, 0, 1u, &Timeout, 0i64);
        LODWORD(Size) = 0;
        v19 = v18;
        ZwUpdateWnfStateData();
        if( v19 )
        {
          if( v19 == 1 )
          {
            if( v6 && **(_DWORD **)(a1 + 48) )
              v2 = -1073741536;
            else
              v2 = 0;
          }
          else
          {
            v2 = v19 != 258 ? 0xC0000001 : 0;
          }
        }
        else
        {
          v2 = -1073741431;
        }
        ExAcquireFastMutex(&PiUEventUsermodeEventQueueLock);
        *(_QWORD *)(v8 + 32) = 0i64;
        *(_QWORD *)(v8 + 40) = 0i64;
        KeReleaseGuardedMutex(&PiUEventUsermodeEventQueueLock);
        PiUEventDereferenceEventEntry(v8);
      }
      return v2;
    }
    ExAcquireFastMutex(&PiUEventUsermodeEventQueueLock);
    v21 = *(_QWORD *)v8;
    if( *(_QWORD *)(*(_QWORD *)v8 + 8i64) != v8 || (v22 = *(_QWORD **)(v8 + 8), *v22 != v8) )
LABEL_42:
      __fastfail(3u);
    *v22 = v21;
    *(_QWORD *)(v21 + 8) = v22;
    KeReleaseGuardedMutex(&PiUEventUsermodeEventQueueLock);
    if( !v3 )
      goto LABEL_38;
    goto LABEL_36;
  }
  return v2;
}

Referenced by: