C++ Leave函数代码示例

void IesireDinWaiting5()
{
	if(GetNrX()==0)
	{
		sleep(1);
		test("Verifica4",Verifica(1,0,1,0,0,1)==0);
		IncNrX();
		Signal(m,1);
		sleep(1);
		test("Verifica5",Verifica(1,0,2,1,0,0)==0);
		Leave(m);
		return;
	}
	if(GetNrX()==1)
	{
		sleep(1);
		test("Verifica6",Verifica(1,0,1,1,0,0)==0);
		IncNrX();
		Leave(m);
		return;
	}
	if(GetNrX()==2)
	{
		sleep(1);
		test("Verifica7",Verifica(1,0,0,2,0,0)==0);
		IncNrX();
		Leave(m);
		return;
	}
}

	//! updates the visitor	
	void FollowCameraPathVisitor::Update()
	{
		if(!m_bActive)
		{
			return;
		}

		f32 fRatio = m_fTimer/m_fDuration;
		m_pCamera->SetPosition(m_Path->GetPosition(m_CurrentElement, m_CurrentElement+1, fRatio));
		m_pCamera->SetLookAt(m_Path->GetLookAt(m_CurrentElement, m_CurrentElement+1, fRatio));

		if(m_fTimer < m_fDuration)
		{
			m_fTimer += g_fDeltaTime;
		}
		else if(m_CurrentElement < s32(m_Path->GetChildCount())-2)
		{
			++m_CurrentElement;
			f32 newDuration = m_Path->GetElement(m_CurrentElement)->GetFollowDuration();
			f32 fOverTime = (m_fTimer-m_fDuration)*(m_fDuration/newDuration);			
			m_fDuration = newDuration-fOverTime;
			m_fTimer = fOverTime + g_fDeltaTime;
		}
		else
		{
			m_iPlayCount++;
			switch(m_ePlaybackType)
			{
			case PT_Once:
				Leave();
				break;

			case PT_Loop:
				if((m_iMaxPlayCount < 0) || (m_iPlayCount < m_iMaxPlayCount))
				{
					m_CurrentElement = 0;
					f32 newDuration = m_Path->GetElement(m_CurrentElement)->GetFollowDuration();
					f32 fOverTime = (m_fTimer-m_fDuration)*(m_fDuration/newDuration);			
					m_fDuration = newDuration-fOverTime;
					m_fTimer = fOverTime + g_fDeltaTime;
				}
				else
				{
					Leave();
				}
				break;

			case PT_Toggle:
				SHOOT_WARNING(false, "FollowCameraPathVisitor Unsupported PlaybackType: PT_Toggle");
				Leave();
				break;
				
			default:
				Leave();
			}
		}		
	}

CLI CommonList::Find(void *data)
{
	Enter();
	for(CLI item = first; item; item = item->next)
		if(data == item->data)
		{
			Leave();
			return item;
		}

	Leave();
	return NULL;
}

/**
 * @brief	Decreases the amount of memory memory usage logged.
 *
 * @throws ErrorReport	If integer overflow will occur.
 *
 * @param	amount	The amount to decrease memory usage logged by.
 */
void MemoryUsageLog::DecreaseMemorySize( size_t amount )
{
	Enter();

	try
	{
		size_t newMemoryUsage = this->GetMemorySize() - amount;
		_ErrorException((amount > 0 && newMemoryUsage >= this->GetMemorySize()),"decreasing the logged memory usage of an object, integer overflow will occur",0,__LINE__,__FILE__);

		this->memoryUsage = newMemoryUsage;
	}
	catch(ErrorReport & report) {Leave(); throw report;}
	catch(...) {Leave(); throw(-1);}
	Leave();
}

void IesireDinWait6()
{
	if(GetNrX()==0)
	{
		sleep(1);
		test("Verifica3",Verifica(1,0,2,0,1,0)==0);
		IncNrX();
		Wait(m,0);
		IesireDinWait6();
		return;
	}
	if(GetNrX()==1)
	{
		sleep(1);
		test("Verifica4",Verifica(1,0,1,1,2,0)==0);
		IncNrX();
		Broadcast(m,0);
		sleep(1);
		test("Verifica5",Verifica(1,0,3,2,0,0)==0);
		Leave(m);
		return;
	}
	if(GetNrX()==2)
	{
		sleep(1);
		test("Verifica6",Verifica(1,0,2,2,0,0)==0);
		IncNrX();
		Leave(m);
		return;
	}
	if(GetNrX()==3)
	{
		sleep(1);
		test("Verifica7",Verifica(1,0,1,3,0,0)==0);
		IncNrX();
		Leave(m);
		return;
	}
	if(GetNrX()==4)
	{
		sleep(1);
		test("Verifica8",Verifica(1,0,0,4,0,0)==0);
		IncNrX();
		Leave(m);
		return;
	}
	
}

void udfFinalMarks::UpdateMarks()
{
	Enter();
	int nRow = 0;
	for(nRow = 0; nRow < m_gridMarks->GetNumberRows(); ++nRow)
	{
		int nCol = 0;
		for(nCol = 0; nCol < m_gridMarks->GetNumberCols(); ++nCol)
		{
			unsigned int id = -1;

			CChampionshipJudgesMarkTable::tDATA data = {0};
			data.tourId = m_tourId;
			data.teamId = m_row2id[nRow];
			data.judgeId = m_col2id[nCol];
						
			long found = CChampionshipJudgesMarkTable(m_pCon).FindId(id, data);

			__info("Row: %d, Col: %d, tourId: %d, teamId: %d, FOUND: %d == %d", nRow, nCol, data.tourId, data.teamId, found, UDF_E_NOTFOUND);
			if(UDF_OK == found)
			{
				__info("Found! ID: %d. Update it...", id);
				m_gridMarks->GetCellValue(nRow, nCol).ToULong((unsigned long *)&data.nMark);
				CChampionshipJudgesMarkTable(m_pCon).UpdateRow(id, data);
			}
			else if(found == UDF_E_NOTFOUND)
			{
				__info("NOT Found! Insert it...");
				m_gridMarks->GetCellValue(nRow, nCol).ToULong((unsigned long *)&data.nMark);
				CChampionshipJudgesMarkTable(m_pCon).AddRow(data);
			}
		}
	}
	Leave();
}

void RecursiveEdgeVisitor::VisitCrossThreadPersistent(
    CrossThreadPersistent* e) {
  AtCrossThreadPersistent(e);
  Enter(e);
  e->ptr()->Accept(this);
  Leave();
}

	/** Delete pItem from the linked list. If bDeleteItem is VTRUE, delete
	will be called on pItem.*/
	virtual VBOOL	Delete(	VLinkedListItem*	pItem,
							VBOOL				bDeleteItem = VTRUE)
	{
		Enter();
		VLinkedListManager::Delete(pItem, bDeleteItem);
		Leave();
	}

	/** Adds an item to the end of the linked list unless
	bAddAtBeginningOfList is VTRUE.*/
	virtual void	Add(	VLinkedListItem*	pItem,
							VBOOL				bAddAtBeginningOfList = VFALSE)
	{
		Enter();
		VLinkedListManager::Add(pItem, bAddAtBeginningOfList);
		Leave();
	}

	/// @brief Performs upkeep logic
	/// @param bPressed If true, there is a press
	void Widget::Upkeep (bool bPressed)
	{
		IssueEvent(ePreUpkeep);

		// Perform leave logic.
		Leave();

		// If the widget is signaled, perform enter logic; on a press, perform grab logic.
		if (IsSignaled())
		{
			Enter();

			if (bPressed) Grab();
		}

		// If there is no press, perform drop logic.
		if (!bPressed) Drop();

		// If the widget remains chosen, post-process it; otherwise, abandon it.
		if (!IsSignaled() && !IsChosen())
		{
			mState->ClearChoice();

			IssueEvent(eAbandon);
		}

		else IssueEvent(ePostUpkeep);
	}

static int SimpleVolumeSet(audio_output_t *aout, float vol, bool mute)
{
    aout_sys_t *sys = aout->sys;
    HRESULT hr;

    if (vol > 1.)
        vol = 1.;

    Enter();
    /* NOTE: better change volume while muted (if mute is toggled) */
    if (mute)
    {
        hr = ISimpleAudioVolume_SetMute(sys->volume.simple, true, NULL);
        if (FAILED(hr))
            msg_Warn(aout, "cannot mute session (error 0x%lx)", hr);
    }

    hr = ISimpleAudioVolume_SetMasterVolume(sys->volume.simple, vol, NULL);
    if (FAILED(hr))
        msg_Warn(aout, "cannot set session volume (error 0x%lx)", hr);

    if (mute)
    {
        hr = ISimpleAudioVolume_SetMute(sys->volume.simple, false, NULL);
        if (FAILED(hr))
            msg_Warn(aout, "cannot unmute session (error 0x%lx)", hr);
    }
    Leave();
    return 0;
}

// Set IME open state 
void CImeView::SetState(BOOL fOpen)
{
	if (Enter()) {
		ImmSetOpenStatus(m_hIMC, fOpen);
		Leave();
	}
}

Game::Game(shared_ptr<IView> _view)
    : userInterface(std::move(_view))
{
    Q_ASSERT(userInterface);

    players.push_back(std::make_unique<Player>("Player 1"));
    players.push_back(std::make_unique<Player>("Player 2"));

    auto v = userInterface.get();

    // connect View to Presenter
    connect(v, SIGNAL(New_game(int)), this, SLOT(new_game(int)));
    connect(v, SIGNAL(Save_game(std::string)), this, SLOT(save_game(std::string)));
    connect(v, SIGNAL(Load_game(std::string)), this, SLOT(load_game(std::string)));
    connect(v, SIGNAL(Host_game(std::string)), this, SLOT(host_game(std::string)));
    connect(v, SIGNAL(Join_game(std::string)), this, SLOT(join_game(std::string)));
    connect(v, SIGNAL(Leave()), this, SLOT(leave()));
    connect(v, SIGNAL(Put_stone(int,int)), this, SLOT(put_stone(int,int)));
    connect(v, SIGNAL(Rotate(IView::quadrant,IView::turn)), this, SLOT(rotate(IView::quadrant,IView::turn)));

    // connect Presenter to View
    connect(this, SIGNAL(draw_stone(int,int,IView::color)),v,SLOT(Draw_stone(int,int,IView::color)));
    connect(this, SIGNAL(set_control_settings(IView::control_setting)),v,SLOT(Set_control_settings(IView::control_setting)));
    connect(this, SIGNAL(message(string)), v, SLOT(Show_message(string)));
}

	void RoomHandler::HandleNickConflict ()
	{
		// The room is already joined, should do nothing special here.
		if (!Nick2Entry_.isEmpty ())
			return;

		if (QMessageBox::question (0,
				tr ("Nickname conflict"),
				tr ("You have specified a nickname for the conference "
					"%1 that's already used. Would you like to try to "
					"join with another nick?")
					.arg (RoomJID_),
				QMessageBox::Yes | QMessageBox::No) != QMessageBox::Yes)
		{
			Leave (QString ());
			return;
		}

		const QString& newNick = QInputDialog::getText (0,
				tr ("Enter new nick"),
				tr ("Enter new nick for joining the conference %1 (%2 is already used):")
					.arg (RoomJID_)
					.arg (OurNick_),
				QLineEdit::Normal,
				OurNick_);
		if (newNick.isEmpty ())
			return;
		
		OurNick_ = newNick;
		Account_->GetClientConnection ()->GetMUCManager ()->joinRoom (RoomJID_, OurNick_);
	}

void SessionImpl::OnJoinSessionReply(const JoinSessionReply& reply, const NetworkConnectionPtr&)
{
	XTASSERT(m_curState == MachineSessionState::JOINING);

	if (reply.GetResult())
	{
		LogInfo("Session Join Succeeded");

		SetState(MachineSessionState::JOINED);

		// Add the connection to the session to the Sync manager
		m_context->GetSyncManager()->AddConnection(m_sessionConnection);
		m_context->GetInternalSyncManager()->AddConnection(m_sessionConnection);

		// Connect the tunnel between the secondary client and the session
		m_tunnelBridge = new TunnelBridge(m_sessionConnection, m_context->GetPairedConnection());

        AddUser(m_context->GetLocalUser());

        m_sessionMgr->NotifyOnUserJoinedSessionListeners(this, m_context->GetLocalUser());

		// Tell all listeners that we've successfully created the session.
		m_listenerList->NotifyListeners(&SessionListener::OnJoinSucceeded);
	}
	else
	{
		LogInfo("Session Join Failed!");

		Leave();
	}
}