KiTryUnwaitThreadWithPriority

__int64 __fastcall KiTryUnwaitThreadWithPriority(__int64 a1, __int64 a2, __int64 a3, int a4){
  struct _KPRCB *CurrentPrcb; 
  __int64 v5; 
  unsigned __int8 v7; 
  __int64 v8; 
  __int64 v11; 
  unsigned __int8 v12; 
  _KPRCB *v13; 
  char v14; 
  _QWORD *v16; 
  _QWORD *v17; 
  __int64 v18; 
  int v19; 
  __int64 v20; 
  __int64 v21; 
  UINT64 SpinCount; 
  CurrentPrcb = KeGetCurrentPrcb();
  v5 = *(_QWORD *)(a2 + 24);
  v7 = 0;
  v8 = a4;
  LODWORD(SpinCount) = 0;
  while( _interlockedbittestandset64((volatile signed __int32 *)(v5 + 64), 0i64) )
  {
    do
      KeYieldProcessorEx(&SpinCount);
    while( *(_QWORD *)(v5 + 64) );
    v20 = *((_QWORD *)CurrentPrcb + 4247);
    if( v20 && *((_BYTE *)CurrentPrcb + 32) <= 1u )
      ++*(_DWORD *)(v20 + 24);
  }
  if( *(_BYTE *)(v5 + 388) == 5 )
  {
    v11 = (unsigned __int8)*(_DWORD *)(v5 + 540);
    if( (_DWORD)v11 != (_DWORD)v8 )
    {
      v19 = *(_DWORD *)(v5 + 540) & 0x100;
      if( !v19 )
      {
        v21 = *(_QWORD *)(v5 + 232);
        _InterlockedDecrement((volatile signed __int32 *)(v21 + 4 * v11 + 536));
        _InterlockedIncrement((volatile signed __int32 *)(v21 + 4 * v8 + 536));
      }
      *(_DWORD *)(v5 + 540) = v19 | (unsigned __int8)v8;
    }
    KiSignalThread((_KPRCB *)a1, (_ETHREAD *)v5, a3, (_KWAIT_BLOCK *)a2);
    v7 = v12;
    if( v12 )
    {
      *(_BYTE *)(v5 + 645) = 0;
      v13 = KeGetCurrentPrcb();
      if( (char)v8 < *(char *)(v5 + 563) )
      {
        if( *(_BYTE *)(v5 + 871) )
        {
          v16 = (_QWORD *)(v5 + 816);
          if( *(_QWORD *)(v5 + 816) == 1i64 )
          {
            v17 = (_QWORD *)((char *)v13 + 34672);
            if( v13 != (_KPRCB *)-34672i64 )
            {
              *v16 = *v17;
              *v17 = v16;
              _InterlockedIncrement16((volatile signed __int16 *)(v5 + 868));
              KiAbQueueAutoBoostDpc(v13);
            }
          }
        }
      }
      v14 = *(_BYTE *)(v5 + 564);
      *(_BYTE *)(v5 + 563) = v8;
      if( v14 )
      {
        if( (v14 & 0xF) != 0 )
          *(_DWORD *)(v5 + 872) = KUSER_SHARED_DATA.TickCount.LowPart;
        *(_BYTE *)(v5 + 564) = 0;
      }
      if( (_DWORD)v8 != *(char *)(v5 + 195) )
      {
        v18 = *(_QWORD *)(v5 + 72) + KiCyclesPerClockQuantum * (unsigned int)*(unsigned __int8 *)(v5 + 651);
        if( (*(_DWORD *)(v5 + 120) & 0x20) != 0 )
          _interlockedbittestandreset((volatile signed __int32 *)(v5 + 120), 5u);
        *(_QWORD *)(v5 + 32) = v18;
        KiSetPriorityThread((_KTHREAD *)v5, 0i64, (unsigned int)v8);
      }
    }
  }
  *(_QWORD *)(v5 + 64) = 0i64;
  ++*(_BYTE *)(a2 + 17);
  return v7;
}

Referenced by: