SMKM_STORE::SmStHelperSendCommand

__int64 __fastcall SMKM_STORE::SmStHelperSendCommand(
        __int64 a1,
        _SMKM_STORE_HELPER_COMMAND a2,
        _SMKM_STORE_HELPER_PARAMS *r8_0,
        unsigned int a4){
  __int64 v6; 
  _SMKM_STORE_HELPER *v8; 
  unsigned int v9; 
  _LARGE_INTEGER v10; 
  _LARGE_INTEGER *p_Timeout; 
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  int v14; 
  bool v15; 
  __int64 v16; 
  _KLOCK_ENTRY *v17; 
  __int64 v18; 
  UINT64 a3; 
  _LARGE_INTEGER Timeout; 
  unsigned __int8 v22; 

  Timeout.QuadPart = 0i64;
  v6 = 6360i64;
  if( a2 != SmKmHelperLock )
    v6 = 6232i64;
  v8 = (_SMKM_STORE_HELPER *)(a1 + v6);
  v9 = SmKmStoreHelperSendCommand(v8, a2, r8_0, a4 & 1);
  if( v9 != -1073741650 )
  {
    if( (a4 & 2) != 0 )
    {
      p_Timeout = 0i64;
    }
    else
    {
      v10.QuadPart = -1000000i64;
      if( *(_BYTE *)(a1 + 6022) > 1u )
        v10.QuadPart = -5000000i64;
      Timeout = v10;
      if( (a4 & 8) != 0 )
        Timeout.QuadPart = v10.QuadPart / 4;
      p_Timeout = &Timeout;
    }
    if( (*(_BYTE *)(a1 + 6021) & 4) != 0 )
    {
      if( (_InterlockedExchangeAdd64((volatile signed __int64 *)(a1 + 6024), 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
        ExfTryToWakePushLock((_EX_PUSH_LOCK *)(a1 + 6024));
      LODWORD(a3) = 0;
      CurrentThread = (_ETHREAD *)KeGetCurrentThread();
      if( MiGetSystemRegionType(a1 + 6024) == 1 )
        SessionId = MmGetSessionIdEx(CurrentThread->Tcb.ApcState.Process);
      else
        SessionId = -1;
      --CurrentThread->Tcb.SpecialApcDisable;
      v22 = ++CurrentThread->Tcb.AbAllocationRegionCount;
      v14 = ((char)CurrentThread->Tcb.AbEntrySummary | (char)CurrentThread->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
      while( 1 )
      {
        v15 = !_BitScanReverse((unsigned int *)&v16, v14);
        if( v15 )
          break;
        v17 = &CurrentThread->Tcb.LockEntries[v16];
        v14 &= ~(1 << v16);
        if( (v17->AcquiredByte & 1) != 0
          && (v17->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
          && (v17->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == ((a1 + 6024) & 0x7FFFFFFFFFFFFFFCi64)
          && v17->LockState.SessionId == SessionId )
        {
          v17->AcquiredByte &= ~1u;
          if( v17->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
          {
            if( v17 )
            {
              v17->CrossThreadReleasableAndBusyByte |= 2u;
              if( v17->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
                KiAbEntryRemoveFromTree(v17);
              LODWORD(a3) = v17->BoostBitmap.AllFields & 0x1FFFF;
              v17->BoostBitmap.AllFields &= 0xFFFE0000;
              v17->ThreadLocalFlags &= ~1u;
              v17->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
              v18 = v17 - CurrentThread->Tcb.LockEntries;
              if( v22 == 1 )
                CurrentThread->Tcb.AbEntrySummary |= 1 << v18;
              else
                _InterlockedOr8((volatile signed __int8 *)&CurrentThread->Tcb.AbOrphanedEntrySummary, 1 << v18);
              goto LABEL_27;
            }
            break;
          }
        }
      }
      if( (*(&CurrentThread->Tcb.MiscFlags + 1) & 0x10000) == 0 )
        KeBugCheckEx(0x162u, CurrentThread, (PVOID)(a1 + 6024), (PVOID)SessionId, 0i64);
LABEL_27:
      --CurrentThread->Tcb.AbAllocationRegionCount;
      KiAbThreadRemoveBoosts(&CurrentThread->Tcb, (VOID *)(a1 + 6024), &a3);
      v15 = CurrentThread->Tcb.SpecialApcDisable++ == -1;
      if( v15
        && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)CurrentThread->Tcb.ApcState.ApcListHead[0].Flink != &CurrentThread->Tcb.152 )
      {
        KiCheckForKernelApcDelivery();
      }
      KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
    }
    v9 = SmKmStoreHelperWaitForCommand(v8, r8_0, p_Timeout, (a4 >> 2) & 1);
    SMKM_STORE::SmStAcquireStoreLockExclusive(a1);
  }
  return v9;
}

Referenced by: