FsRtlNotifySetCancelRoutine

char __fastcall FsRtlNotifySetCancelRoutine(__int64 a1, __int64 a2){
  char v3; 
  __int64 v6; 
  KIRQL v7; 
  v3 = 0;
  *(_BYTE *)(a1 + 69) = KeAcquireQueuedSpinLock(7ui64);
  if( a2 )
  {
    v6 = _InterlockedExchange64((volatile __int64 *)(a1 + 104), 0i64);
    v7 = *(_BYTE *)(a1 + 69);
    *(_QWORD *)(a1 + 56) = 0i64;
    KeReleaseQueuedSpinLock(7ui64, v7);
    if( v6 )
    {
      _InterlockedDecrement((volatile signed __int32 *)(a2 + 112));
      return 1;
    }
  }
  else if( *(_BYTE *)(a1 + 68) )
  {
    FsRtlCancelNotify(0i64, (_IRP *)a1);
  }
  else
  {
    _InterlockedExchange64((volatile __int64 *)(a1 + 104), (__int64)FsRtlCancelNotify);
    KeReleaseQueuedSpinLock(7ui64, *(_BYTE *)(a1 + 69));
  }
  return v3;
}

Referenced by: