RtlpStdExtendLowerWatermark

VOID *__stdcall RtlpStdExtendLowerWatermark(_STACK_TRACE_DATABASE *Database, UINT64 Size){
  VOID *v4; 
  char *v5; 
  char v6; 
  VOID *v7; 
  unsigned __int64 v8; 
  unsigned __int64 v9; 
  UINT64 AllocationType; 
  UINT64 Protect; 
  UINT64 RegionSize; 
  VOID *BaseAddress; 

  RegionSize = 0i64;
  v4 = 0i64;
  *((_BYTE *)Database + 8) = KeAcquireSpinLockRaiseToDpc((UINT64 *)Database);
  v5 = (char *)*((_QWORD *)Database + 20);
  v6 = *((_BYTE *)Database + 128);
  v7 = (VOID *)*((_QWORD *)Database + 18);
  BaseAddress = v7;
  v8 = (unsigned __int64)&v5[Size];
  if( !v6 )
  {
    if( v8 > (unsigned __int64)v7 )
    {
      RegionSize = (Size + 4095) & 0xFFFFFFFFFFFFF000ui64;
      if( (unsigned __int64)v7 + RegionSize >= *((_QWORD *)Database + 19) )
        goto LABEL_9;
      LODWORD(Protect) = 4;
      LODWORD(AllocationType) = 4096;
      if( ZwAllocateVirtualMemory(
             (VOID *)0xFFFFFFFFFFFFFFFFi64,
             &BaseAddress,
             0i64,
             &RegionSize,
             AllocationType,
             Protect) < 0 )
        goto LABEL_9;
      *((_QWORD *)Database + 18) = (char *)BaseAddress + RegionSize;
    }
LABEL_8:
    ++Database[48];
    *((_QWORD *)Database + 20) = &v5[Size];
    v4 = v5;
    goto LABEL_9;
  }
  if( v8 <= *((_QWORD *)Database + 21) )
    goto LABEL_8;
LABEL_9:
  v9 = *((unsigned __int8 *)Database + 8);
  KxReleaseSpinLock((UINT64 *)Database);
  __writecr8(v9);
  return v4;
}

Referenced by: