KeUpdateThreadCpuSets

VOID __stdcall KeUpdateThreadCpuSets(_ETHREAD *Thread){
  unsigned __int8 CurrentIrql; 
  struct _KPRCB *CurrentPrcb; 
  _ETHREAD *CurrentThread; 
  bool v4; 
  INT64 v5; 
  _ETHREAD *NextThread; 
  char v7; 
  INT64 v8; 
  INT64 v9; 
  INT64 v10; 
  UINT64 SpinCount; 
  _SINGLE_LIST_ENTRY ReadyList; 

  ReadyList.Next = 0i64;
  CurrentIrql = KeGetCurrentIrql();
  __writecr8(2ui64);
  KiUpdateThreadCpuSetAffinitiesFromDpcLevel(&Thread->Tcb, &ReadyList);
  CurrentPrcb = KeGetCurrentPrcb();
  KiReadyDeferredReadyList(CurrentPrcb, &ReadyList);
  if( CurrentIrql >= 2u )
  {
    if( CurrentPrcb->NextThread && !CurrentPrcb->DpcRoutineActive )
      KiRequestSoftwareInterrupt(CurrentPrcb, 2);
  }
  else
  {
    CurrentThread = CurrentPrcb->CurrentThread;
    if( CurrentPrcb->NextThread )
    {
      KiAbProcessContextSwitch(&CurrentPrcb->CurrentThread->Tcb, 0i64);
      LODWORD(SpinCount) = 0;
      while( _interlockedbittestandset64((volatile signed __int32 *)&CurrentPrcb->PrcbLock, 0i64) )
      {
        do
          KeYieldProcessorEx(&SpinCount);
        while( CurrentPrcb->PrcbLock );
      }
      NextThread = CurrentPrcb->NextThread;
      CurrentPrcb->NextThread = 0i64;
      _disable();
      KiEndThreadCycleAccumulation((INT64)CurrentPrcb, (INT64)CurrentThread, 0i64, v5, v8, v9, v10);
      _enable();
      CurrentPrcb->CurrentThread = NextThread;
      if( NextThread->Tcb.WaitBlockFill6[68] == 1 )
        NextThread->Tcb.ReadyTime = NextThread->Tcb.ReadyTime
                                  - NextThread->Tcb.WaitBlock[2].SpareLong
                                  + KUSER_SHARED_DATA.TickCount.LowPart;
      NextThread->Tcb.WaitBlockFill6[68] = 2;
      CurrentThread->Tcb.WaitReason = 32;
      CurrentThread->Tcb.WaitIrql = CurrentIrql;
      KiQueueReadyThread(CurrentPrcb, &CurrentThread->Tcb);
      KiSwapContext();
      v4 = v7 == 0;
    }
    else
    {
      v4 = (CurrentThread->Tcb._bf_0 & 0x40) == 0;
    }
    if( !v4 )
    {
      __writecr8(1ui64);
      CurrentThread->Tcb._bf_0 &= ~0x40u;
      KiDeliverApc(0, 0i64, 0i64);
    }
    __writecr8(CurrentIrql);
  }
}

Referenced by: