EmpQueueRuleUpdateState

char __fastcall EmpQueueRuleUpdateState(__int64 a1, __int64 a2){
  _QWORD *i; 
  _QWORD *PoolWithTag; 
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  char v8; 
  int v9; 
  bool v10; 
  __int64 v11; 
  unsigned __int64 v12; 
  int v13; 
  unsigned int v14; 
  __int64 v15; 
  _QWORD *v16; 
  int v18; 
  ExAcquirePushLockExclusiveEx((UINT64)&EmpEvaluationQueueLock, 0i64);
  for( i = (_QWORD *)EmpRuleUpdateQueue; i; i = (_QWORD *)*i )
  {
    if( *(i - 1) == a1 )
    {
      if( i != (_QWORD *)8 )
      {
        i[1] = 0i64;
        goto LABEL_8;
      }
      break;
    }
  }
  PoolWithTag = ExAllocatePoolWithTag(PagedPool, 0x18ui64, 0x75714D45ui64);
  if( PoolWithTag )
  {
    *PoolWithTag = a1;
    PoolWithTag[2] = a2;
    PoolWithTag[1] = EmpRuleUpdateQueue;
    EmpRuleUpdateQueue = (__int64)(PoolWithTag + 1);
    if( !EmpWorkerBusy )
    {
      _InterlockedExchange(&EmpWorkerBusy, 1);
      ExQueueWorkItem(&EmpRuleUpdateWorker, DelayedWorkQueue);
    }
  }
LABEL_8:
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)&EmpEvaluationQueueLock, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((volatile INT64 *)&EmpEvaluationQueueLock);
  v18 = 0;
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType((UINT64)&EmpEvaluationQueueLock) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)CurrentThread + 23));
  else
    SessionId = -1;
  --*((_WORD *)CurrentThread + 243);
  v8 = ++*((_BYTE *)CurrentThread + 794);
  v9 = (*((char *)CurrentThread + 792) | *((char *)CurrentThread + 870)) ^ 0x3F;
  while( 1 )
  {
    v10 = !_BitScanReverse((unsigned int *)&v11, v9);
    if( v10 )
      break;
    v12 = *((_QWORD *)CurrentThread + 100) + 96 * v11;
    v9 &= ~(1 << v11);
    if( (*(_BYTE *)(v12 + 26) & 1) != 0
      && (*(_DWORD *)(v12 + 32) & 1) == 0
      && (*(_QWORD *)(v12 + 32) & 0x7FFFFFFFFFFFFFFCi64) == ((unsigned __int64)&EmpEvaluationQueueLock & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v12 + 40) == SessionId )
    {
      *(_BYTE *)(v12 + 26) &= ~1u;
      if( *(_QWORD *)(v12 + 32) )
      {
        if( v12 )
        {
          *(_BYTE *)(v12 + 32) |= 2u;
          if( *(__int64 *)(v12 + 32) < 0 )
            KiAbEntryRemoveFromTree(v12);
          v13 = *(_DWORD *)(v12 + 88) & 0x1FFFF;
          v14 = *(_DWORD *)(v12 + 88) & 0xFFFE0000;
          *(_BYTE *)(v12 + 25) &= ~1u;
          v18 = v13;
          *(_DWORD *)(v12 + 88) = v14;
          *(_QWORD *)(v12 + 32) = 0i64;
          v15 = (__int64)(v12 - *((_QWORD *)CurrentThread + 100)) / 96;
          if( v8 == 1 )
            *((_BYTE *)CurrentThread + 792) |= 1 << v15;
          else
            _InterlockedOr8((volatile signed __int8 *)CurrentThread + 870, 1 << v15);
          goto LABEL_24;
        }
        break;
      }
    }
  }
  if( (*((_DWORD *)CurrentThread + 30) & 0x10000) == 0 )
    KeBugCheckEx(0x162u, (ULONG_PTR)CurrentThread, (ULONG_PTR)&EmpEvaluationQueueLock, SessionId, 0i64);
LABEL_24:
  --*((_BYTE *)CurrentThread + 794);
  LOBYTE(v16) = KiAbThreadRemoveBoosts((ULONG_PTR)CurrentThread, (__int64)&EmpEvaluationQueueLock, (unsigned int *)&v18);
  v10 = (*((_WORD *)CurrentThread + 243))++ == 0xFFFF;
  if( v10 )
  {
    v16 = (_QWORD *)((char *)CurrentThread + 152);
    if( (_QWORD *)*v16 != v16 )
      LOBYTE(v16) = KiCheckForKernelApcDelivery();
  }
  return(char)v16;
}

Referenced by: