C++ QExplicitlySharedDataPointer::data方法代码示例

void QNetworkConfigurationManagerPrivate::deleteConfiguration(QString& iap_id)
{
    /* Called when IAPs are deleted in db, in this case we do not scan
     * or read all the IAPs from db because it might take too much power
     * (multiple applications would need to scan and read all IAPs from db)
     */
    if (accessPointConfigurations.contains(iap_id)) {
	QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> priv = accessPointConfigurations.take(iap_id);
	if (priv.data()) {
	    priv->isValid = false;
#ifdef BEARER_MANAGEMENT_DEBUG
	    qDebug() << "IAP" << iap_id << "was removed from storage.";
#endif

	    QNetworkConfiguration item;
	    item.d = priv;
	    emit configurationRemoved(item);
	} else
	    qWarning("Configuration not found for IAP %s", iap_id.toAscii().data());
    } else {
#ifdef BEARER_MANAGEMENT_DEBUG
	qDebug("IAP: %s, already missing from the known list", iap_id.toAscii().data());
#endif
    }
}

void QWebEnginePagePrivate::recreateFromSerializedHistory(QDataStream &input)
{
    QExplicitlySharedDataPointer<WebContentsAdapter> newWebContents = WebContentsAdapter::createFromSerializedNavigationHistory(input, this);
    if (newWebContents) {
        adapter = newWebContents.data();
        adapter->initialize(this);
    }
}

void tst_QExplicitlySharedDataPointer::reset() const
{
    /* Do reset on a single ref count. */
    {
        QExplicitlySharedDataPointer<MyClass> pointer(new MyClass());
        QVERIFY(pointer.data() != 0);

        pointer.reset();
        QCOMPARE(pointer.data(), static_cast<MyClass *>(0));
    }

    /* Do reset on a default constructed object. */
    {
        QExplicitlySharedDataPointer<MyClass> pointer;
        QCOMPARE(pointer.data(), static_cast<MyClass *>(0));

        pointer.reset();
        QCOMPARE(pointer.data(), static_cast<MyClass *>(0));
    }
}

void QNetworkConfigurationManagerPrivate::configurationRemoved(const QString &id)
{
    if (!accessPointConfigurations.contains(id))
        return;

    QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr =
        accessPointConfigurations.take(id);

    configurationEngine.remove(id);

    ptr.data()->isValid = false;

    if (!firstUpdate) {
        QNetworkConfiguration item;
        item.d = ptr;
        emit configurationRemoved(item);
    }

    if (ptr.data()->state == QNetworkConfiguration::Active) {
        --onlineConfigurations;
        if (!firstUpdate && onlineConfigurations == 0)
            emit onlineStateChanged(false);
    }
}

void QNetworkConfigurationManagerPrivate::updateInternetServiceConfiguration()
{
    if (!snapConfigurations.contains(QLatin1String("Internet Service Network"))) {
        QNetworkConfigurationPrivate *serviceNetwork = new QNetworkConfigurationPrivate;
        serviceNetwork->name = tr("Internet");
        serviceNetwork->isValid = true;
        serviceNetwork->id = QLatin1String("Internet Service Network");
        serviceNetwork->state = QNetworkConfiguration::Defined;
        serviceNetwork->type = QNetworkConfiguration::ServiceNetwork;

        QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr(serviceNetwork);

        snapConfigurations.insert(serviceNetwork->id, ptr);

        if (!firstUpdate) {
            QNetworkConfiguration item;
            item.d = ptr;
            emit configurationAdded(item);
        }
    }

    QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr =
        snapConfigurations.value(QLatin1String("Internet Service Network"));

    QList<QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> > serviceNetworkMembers;

    QHash<QString, QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> >::const_iterator i =
        accessPointConfigurations.constBegin();

    QNetworkConfiguration::StateFlags state = QNetworkConfiguration::Defined;
    while (i != accessPointConfigurations.constEnd()) {
        QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> child = i.value();

        if (child.data()->internet && ((child.data()->state & QNetworkConfiguration::Defined)
                    == QNetworkConfiguration::Defined)) {
            serviceNetworkMembers.append(child);

            state |= child.data()->state;
        }

        ++i;
    }


    if (ptr.data()->state != state || ptr.data()->serviceNetworkMembers != serviceNetworkMembers) {
        ptr.data()->state = state;
        ptr.data()->serviceNetworkMembers = serviceNetworkMembers;

        QNetworkConfiguration item;
        item.d = ptr;
        emit configurationChanged(item);
    }
}

void tst_QExplicitlySharedDataPointer::data() const
{
    /* Check default value. */
    {
        QExplicitlySharedDataPointer<const MyClass> pointer;
        QCOMPARE(pointer.data(), static_cast<const MyClass *>(0));
    }

    /* On const pointer. Must not mutate the pointer. */
    {
        const QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass());
        pointer.data();

        /* Check that this cast is possible. */
        static_cast<const MyClass *>(pointer.data());
    }

    /* On mutatable pointer. Must not mutate the pointer. */
    {
        QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass());
        pointer.data();

        /* Check that this cast is possible. */
        static_cast<const MyClass *>(pointer.data());
    }

    /* Must not mutate the pointer. */
    {
        const QExplicitlySharedDataPointer<MyClass> pointer(new MyClass());
        pointer.data();

        /* Check that these casts are possible. */
        static_cast<MyClass *>(pointer.data());
        static_cast<const MyClass *>(pointer.data());
    }

    /* Must not mutate the pointer. */
    {
        QExplicitlySharedDataPointer<MyClass> pointer(new MyClass());
        pointer.data();

        /* Check that these casts are possible. */
        static_cast<MyClass *>(pointer.data());
        static_cast<const MyClass *>(pointer.data());
    }
}

void QNetworkConfigurationManagerPrivate::addConfiguration(QString& iap_id)
{
    // Note: When new IAP is created, this function gets called multiple times
    //       in a row.
    //       For example: Empty type & name for WLAN was stored into newly
    //                    created IAP data in gconf when this function gets
    //                    called for the first time.
    //                    WLAN type & name are updated into IAP data in gconf
    //                    as soon as WLAN connection is up and running.
    //                    => And this function gets called again.

    if (!accessPointConfigurations.contains(iap_id)) {
	Maemo::IAPConf saved_iap(iap_id);
        QString iap_type = saved_iap.value("type").toString();
        QString iap_name = saved_iap.value("name").toString();
        QByteArray ssid = saved_iap.value("wlan_ssid").toByteArray();
        if (!iap_type.isEmpty() && !iap_name.isEmpty()) {
            // Check if new IAP is actually Undefined WLAN configuration
            // Note: SSID is used as an iap id for Undefined WLAN configurations
            //       => configuration must be searched using SSID
            if (!ssid.isEmpty() && accessPointConfigurations.contains(ssid)) {
                QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr = accessPointConfigurations.take(ssid);
                if (ptr.data()) {
                    ptr->id = iap_id;
                    ptr->iap_type = iap_type;
                    ptr->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
                    ptr->network_id = ssid;
                    ptr->service_id = saved_iap.value("service_id").toString();
                    ptr->service_type = saved_iap.value("service_type").toString();
                    if (m_onlineIapId == iap_id) {
                        ptr->state = QNetworkConfiguration::Active;
                    } else {
                        ptr->state = QNetworkConfiguration::Defined;
                    }
                    accessPointConfigurations.insert(iap_id, ptr);
                    configurationChanged(ptr.data());
                }
            } else {
                QNetworkConfigurationPrivate* cpPriv = new QNetworkConfigurationPrivate();
                cpPriv->name = saved_iap.value("name").toString();
                if (cpPriv->name.isEmpty())
                    cpPriv->name = iap_id;
                cpPriv->isValid = true;
                cpPriv->id = iap_id;
                cpPriv->iap_type = iap_type;
                cpPriv->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
                cpPriv->service_id = saved_iap.value("service_id").toString();
                cpPriv->service_type = saved_iap.value("service_type").toString();
                if (iap_type.startsWith(QLatin1String("WLAN"))) {
                    QByteArray ssid = saved_iap.value("wlan_ssid").toByteArray();
                    if (ssid.isEmpty()) {
                        qWarning() << "Cannot get ssid for" << iap_id;
                    }
                    cpPriv->network_id = ssid;
                }
                cpPriv->type = QNetworkConfiguration::InternetAccessPoint;
                if (m_onlineIapId == iap_id) {
                    cpPriv->state = QNetworkConfiguration::Active;
                } else {
                    cpPriv->state = QNetworkConfiguration::Defined;
                }
                cpPriv->manager = this;

                QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr(cpPriv);
                accessPointConfigurations.insert(iap_id, ptr);

#ifdef BEARER_MANAGEMENT_DEBUG
                qDebug("IAP: %s, name: %s, added to known list", iap_id.toAscii().data(), cpPriv->name.toAscii().data());
#endif
                QNetworkConfiguration item;
                item.d = ptr;
                emit configurationAdded(item);
            }
        } else {
            qWarning("IAP %s does not have \"type\" or \"name\" fields defined, skipping this IAP.", iap_id.toAscii().data());
        }
    } else {
#ifdef BEARER_MANAGEMENT_DEBUG
	qDebug() << "IAP" << iap_id << "already in db.";
#endif

	/* Check if the data in db changed and update configuration accordingly
	 */
        QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr = accessPointConfigurations.value(iap_id);
	if (ptr.data()) {
	    Maemo::IAPConf changed_iap(iap_id);
	    QString iap_type = changed_iap.value("type").toString();
	    bool update_needed = false; /* if IAP type or ssid changed, we need to change the state */

	    ptr->network_attrs = getNetworkAttrs(true, iap_id, iap_type, QString());
	    ptr->service_id = changed_iap.value("service_id").toString();
	    ptr->service_type = changed_iap.value("service_type").toString();

	    if (!iap_type.isEmpty()) {
		ptr->name = changed_iap.value("name").toString();
		if (ptr->name.isEmpty())
		    ptr->name = iap_id;
		ptr->isValid = true;
		if (ptr->iap_type != iap_type) {
		    ptr->iap_type = iap_type;
//.........这里部分代码省略.........

void QQmlIncubatorPrivate::incubate(QQmlInstantiationInterrupt &i)
{
    if (!compiledData)
        return;

    QML_MEMORY_SCOPE_URL(compiledData->url());

    QExplicitlySharedDataPointer<QQmlIncubatorPrivate> protectThis(this);

    QRecursionWatcher<QQmlIncubatorPrivate, &QQmlIncubatorPrivate::recursion> watcher(this);

    QQmlEngine *engine = compiledData->engine;
    QQmlEnginePrivate *enginePriv = QQmlEnginePrivate::get(engine);

    if (!vmeGuard.isOK()) {
        QQmlError error;
        error.setUrl(compiledData->url());
        error.setDescription(QQmlComponent::tr("Object destroyed during incubation"));
        errors << error;
        progress = QQmlIncubatorPrivate::Completed;

        goto finishIncubate;
    }

    vmeGuard.clear();

    if (progress == QQmlIncubatorPrivate::Execute) {
        enginePriv->referenceScarceResources();
        QObject *tresult = 0;
        tresult = creator->create(subComponentToCreate, /*parent*/0, &i);
        if (!tresult)
            errors = creator->errors;
        enginePriv->dereferenceScarceResources();

        if (watcher.hasRecursed())
            return;

        result = tresult;
        if (errors.isEmpty() && result == 0)
            goto finishIncubate;

        if (result) {
            QQmlData *ddata = QQmlData::get(result);
            Q_ASSERT(ddata);
            //see QQmlComponent::beginCreate for explanation of indestructible
            ddata->indestructible = true;
            ddata->explicitIndestructibleSet = true;
            ddata->rootObjectInCreation = false;
            if (q)
                q->setInitialState(result);
        }

        if (watcher.hasRecursed())
            return;

        if (errors.isEmpty())
            progress = QQmlIncubatorPrivate::Completing;
        else
            progress = QQmlIncubatorPrivate::Completed;

        changeStatus(calculateStatus());

        if (watcher.hasRecursed())
            return;

        if (i.shouldInterrupt())
            goto finishIncubate;
    }

    if (progress == QQmlIncubatorPrivate::Completing) {
        do {
            if (watcher.hasRecursed())
                return;

            QQmlContextData *ctxt = 0;
            ctxt = creator->finalize(i);
            if (ctxt) {
                rootContext = ctxt;
                progress = QQmlIncubatorPrivate::Completed;
                goto finishIncubate;
            }
        } while (!i.shouldInterrupt());
    }

finishIncubate:
    if (progress == QQmlIncubatorPrivate::Completed && waitingFor.isEmpty()) {
        QExplicitlySharedDataPointer<QQmlIncubatorPrivate> isWaiting = waitingOnMe;
        clear();

        if (isWaiting) {
            QRecursionWatcher<QQmlIncubatorPrivate, &QQmlIncubatorPrivate::recursion> watcher(isWaiting.data());
            changeStatus(calculateStatus());
            if (!watcher.hasRecursed())
                isWaiting->incubate(i);
        } else {
            changeStatus(calculateStatus());
        }

        enginePriv->inProgressCreations--;

//.........这里部分代码省略.........

void CallbackDirectory::registerCallback(quint64 requestId, const QExplicitlySharedDataPointer<BoolCallback> &callback)
{
    m_callbackMap.insert(requestId, CallbackSharedDataPointer(callback.data()));
}

void StaticContext::wrapExpressionWith(const SourceLocationReflection *const existingNode,
                                       const QExplicitlySharedDataPointer<Expression> &newNode)
{
    addLocation(newNode.data(), locationFor(existingNode));
}

void QNetworkConfigurationManagerPrivate::configurationChanged(QNetworkConfigurationPrivate *cpPriv)
{
    if (!accessPointConfigurations.contains(cpPriv->id))
        return;

    QExplicitlySharedDataPointer<QNetworkConfigurationPrivate> ptr =
        accessPointConfigurations.value(cpPriv->id);

    if (ptr.data()->isValid != cpPriv->isValid ||
        ptr.data()->name != cpPriv->name ||
        ptr.data()->id != cpPriv->id ||
        ptr.data()->state != cpPriv->state ||
        ptr.data()->type != cpPriv->type ||
        ptr.data()->roamingSupported != cpPriv->roamingSupported ||
        ptr.data()->purpose != cpPriv->purpose ||
        ptr.data()->bearer != cpPriv->bearer ||
        ptr.data()->internet != cpPriv->internet) {

        const QNetworkConfiguration::StateFlags oldState = ptr.data()->state;

        ptr.data()->isValid = cpPriv->isValid;
        ptr.data()->name = cpPriv->name;
        ptr.data()->id = cpPriv->id;
        ptr.data()->state = cpPriv->state;
        ptr.data()->type = cpPriv->type;
        ptr.data()->roamingSupported = cpPriv->roamingSupported;
        ptr.data()->purpose = cpPriv->purpose;
        ptr.data()->internet = cpPriv->internet;
        ptr.data()->bearer = cpPriv->bearer;

        if (!firstUpdate) {
            QNetworkConfiguration item;
            item.d = ptr;
            emit configurationChanged(item);
        }

        if (ptr.data()->state == QNetworkConfiguration::Active && oldState != ptr.data()->state) {
            // configuration went online
            ++onlineConfigurations;
            if (!firstUpdate && onlineConfigurations == 1)
                emit onlineStateChanged(true);
        } else if (ptr.data()->state != QNetworkConfiguration::Active && oldState == QNetworkConfiguration::Active) {
            // configuration went offline
            --onlineConfigurations;
            if (!firstUpdate && onlineConfigurations == 0)
                emit onlineStateChanged(false);
        }
    }
}

void KstViewFitsDialog::fitChanged(const QString& strFit) {
  KstCPluginList fits;
  KstCPluginPtr plugin;
  double* params = 0L;
  double* covars = 0L;
  double chi2Nu = 0.0;
  int numParams = 0;
  int numCovars = 0;
  int i;

  fits = kstObjectSubList<KstDataObject,KstCPlugin>(KST::dataObjectList);
  plugin = *(fits.findTag(strFit));
  if (plugin) {
    KstScalarPtr scalarChi2Nu;
    KstVectorPtr vectorParam;
    plugin->readLock();

    const KstScalarMap& scalars = plugin->outputScalars();
    
    scalarChi2Nu = scalars["chi^2/nu"];
    if (scalarChi2Nu) {
      scalarChi2Nu->readLock();
      chi2Nu = scalarChi2Nu->value();
      scalarChi2Nu->unlock();
    }

    const KstVectorMap& vectors = plugin->outputVectors();
    vectorParam = vectors["Parameters"];

    if (vectorParam) {
      KstVectorPtr vectorCovar;

      vectorParam->readLock();
      vectorCovar = vectors["Covariance"];
      if (vectorCovar) {
        vectorCovar->readLock();
        numParams = vectorParam->length();
        numCovars = vectorCovar->length();

        if (numParams > 0 && numCovars > 0) {
          params = new double[numParams];
          covars = new double[numCovars];

          for (i = 0; i < numParams; i++) {
            params[i] = vectorParam->value(i);
          }

          for (i = 0; i < numCovars; i++) {
            covars[i] = vectorCovar->value(i);
          }
        }
        vectorCovar->unlock();
      }
      vectorParam->unlock();
    }
    plugin->unlock();
  }

  _tableFits->setParameters(params, numParams, covars, numCovars, chi2Nu);

  if (numParams > 0) {
    _tableFits->horizontalHeaderItem(0)->setText(QObject::tr("Value"));
    _tableFits->horizontalHeaderItem(1)->setText(QObject::tr("Covariance:"));

    _tableFits->verticalHeaderItem(numParams+0)->setText("---");
    _tableFits->verticalHeaderItem(numParams+1)->setText(QObject::tr("Chi^2/Nu"));

    if (plugin) {
      QExplicitlySharedDataPointer<Plugin> pluginBase;

      plugin->readLock();
      pluginBase = plugin->plugin();

      if (pluginBase) {
        textLabelFit->setText(pluginBase->data()._readableName);
        for (i = 0; i < numParams; i++) {
          QString parameterName = pluginBase->parameterName(i);
          _tableFits->horizontalHeaderItem(i+2)->setText(parameterName);
          _tableFits->verticalHeaderItem(i)->setText(parameterName);
        }
      }
      plugin->unlock();
    }
  }

  _tableFits->update();
}