C++ QExplicitlySharedDataPointer类代码示例

void LootGroup::readObject(lua_State* L) {
    LootLuaManager* luaManager = MainWindow::instance->getLootLuaManager();

    description = LuaParser::getStringField(L, "description");
    minimumLevel = LuaParser::getIntField(L, "minimumLevel");
    maximumLevel = LuaParser::getIntField(L, "maximumLevel");

    lua_pushstring(L, "lootItems");
    lua_gettable(L, -2);

    int totalItems = luaL_getn(L, -1);

    for (int i = 1; i <= totalItems; ++i) {
        lua_rawgeti(L, -1, i);

        QString itemTemplate = LuaParser::getStringField(L, "itemTemplate");
        int weight = LuaParser::getIntField(L, "weight");

        if (!luaManager->itemTemplateExists(itemTemplate))
            continue;

        QExplicitlySharedDataPointer<LootItemTemplate> lootItemTemplate = luaManager->getItemTemplate(itemTemplate);
        lootItemTemplate->registerLootGroup(groupName);

        addLootItemTemplate(itemTemplate, weight);

        lua_pop(L, 1);
    }

    lua_pop(L, 1);
}

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 MediaPlayer::openUrl( const QString& url )
{
    QExplicitlySharedDataPointer<Playlist> playlist = Playlist::construct_playlist( url );
    playlist->setPlaying( playlist->index( 0 ) );

    setPlaylist( playlist );
}

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

bool AtomicValue::evaluateEBV(const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
    context->error(QtXmlPatterns::tr("A value of type %1 cannot have an "
                                     "Effective Boolean Value.")
                      .arg(formatType(context->namePool(), type())),
                      ReportContext::FORG0006,
                      QSourceLocation());
    return false; /* Silence GCC warning. */
}

void MediaPlayer::setDocument( const QString& doc )
{
    m_closeonback = true;

    QExplicitlySharedDataPointer<Playlist> playlist = Playlist::construct_playlist( doc );
    playlist->setPlaying( playlist->index( 0 ) );

    setPlaylist( playlist );
}

Item DecimalMathematician::calculate(const Item &o1,
                                     const Operator op,
                                     const Item &o2,
                                     const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
    switch(op)
    {
        case Div:
        {
            if(o2.as<Numeric>()->toInteger() == 0)
            {
                context->error(divZeroInvalid(), ReportContext::FOAR0001, this);
                return Item(); /* Silences source code analyzer warning. */
            }
            else
                return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() / o2.as<Numeric>()->toDecimal()));
        }
        case IDiv:
        {
            if(o2.as<Numeric>()->toInteger() == 0)
            {
                context->error(idivZeroInvalid(), ReportContext::FOAR0001, this);
                return Item(); /* Silences source code analyzer warning. */
            }
            else
                return Integer::fromValue(static_cast<xsInteger>(o1.as<Numeric>()->toDecimal() /
                                                                 o2.as<Numeric>()->toDecimal()));
        }
        case Substract:
            return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() - o2.as<Numeric>()->toDecimal()));
        case Mod:
        {
            if(o2.as<Numeric>()->toInteger() == 0)
            {
                context->error(modZeroInvalid(), ReportContext::FOAR0001, this);
                return Item(); /* Silences source code analyzer warning. */
            }
            else
                return toItem(Decimal::fromValue(::fmod(o1.as<Numeric>()->toDecimal(), o2.as<Numeric>()->toDecimal())));
        }
        case Multiply:
            return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() * o2.as<Numeric>()->toDecimal()));
        case Add:
            return toItem(Decimal::fromValue(o1.as<Numeric>()->toDecimal() + o2.as<Numeric>()->toDecimal()));
    }

    Q_ASSERT(false);
    return Item(); /* GCC unbarfer. */
}

Item AbstractFloatMathematician<isDouble>::calculate(const Item &o1,
                                                          const Operator op,
                                                          const Item &o2,
                                                          const QExplicitlySharedDataPointer<DynamicContext> &context) const
{
    const Numeric *const num1 = o1.template as<Numeric>();
    const Numeric *const num2 = o2.template as<Numeric>();
    switch(op)
    {
        case Div:
            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() / num2->toDouble()));
        case IDiv:
        {
            if(num1->isNaN() || num2->isNaN())
            {
                context->error(QtXmlPatterns::tr("No operand in an integer division, %1, can be %2.")
                                  .arg(formatKeyword("idiv"))
                                  .arg(formatData("NaN")),
                               ReportContext::FOAR0002, this);
            }
            else if(num1->isInf())
            {
                context->error(QtXmlPatterns::tr("The first operand in an integer division, %1, cannot be infinity (%2).")
                                                 .arg(formatKeyword("idiv"))
                                                 .arg(formatData("INF")),
                               ReportContext::FOAR0002, this);
            }
            else if(num2->toInteger() == 0)
                context->error(QtXmlPatterns::tr("The second operand in a division, %1, cannot be zero (%2).")
                                                 .arg(formatKeyword("idiv"))
                                                 .arg(formatData("0")),
                               ReportContext::FOAR0001, this);

            return Integer::fromValue(static_cast<xsInteger>(num1->toDouble() / num2->toDouble()));
        }
        case Substract:
            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() - num2->toDouble()));
        case Mod:
            return toItem(AbstractFloat<isDouble>::fromValue(::fmod(num1->toDouble(), num2->toDouble())));
        case Multiply:
            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() * num2->toDouble()));
        case Add:
            return toItem(AbstractFloat<isDouble>::fromValue(num1->toDouble() + num2->toDouble()));
    }

    Q_ASSERT(false);
    return Item(); /* GCC unbarfer. */
}

bool Boolean::evaluateEBV(const Item &first,
                          const Item::Iterator::Ptr &it,
                          const QExplicitlySharedDataPointer<DynamicContext> &context)
{
    Q_ASSERT(it);
    Q_ASSERT(context);

    if(!first)
        return false;
    else if(first.isNode())
        return true;

    const Item second(it->next());

    if(second)
    {
        Q_ASSERT(context);
        context->error(QtXmlPatterns::tr("Effective Boolean Value cannot be calculated for a sequence "
                                         "containing two or more atomic values."),
                          ReportContext::FORG0006,
                          QSourceLocation());
        return false;
    }
    else
        return first.as<AtomicValue>()->evaluateEBV(context);
}

QT_END_NAMESPACE

void tst_QExplicitlySharedDataPointer::pointerOperatorOnConst() const
{
    /* Pointer itself is const. */
    {
        const QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass());
        pointer->notMutating();
    }

    /* Pointer itself is mutable. */
    {
        QExplicitlySharedDataPointer<const MyClass> pointer(new MyClass());
        pointer->notMutating();
    }
}

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::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 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();
}

bool KConfig::sync()
{
    Q_D(KConfig);

    if (isImmutable() || name().isEmpty()) {
        // can't write to an immutable or anonymous file.
        return false;
    }

    if (d->bDirty && d->mBackend) {
        const QByteArray utf8Locale(locale().toUtf8());

        // Create the containing dir, maybe it wasn't there
        d->mBackend->createEnclosing();

        // lock the local file
        if (d->configState == ReadWrite && !d->lockLocal()) {
            qWarning() << "couldn't lock local file";
            return false;
        }

        // Rewrite global/local config only if there is a dirty entry in it.
        bool writeGlobals = false;
        bool writeLocals = false;
        Q_FOREACH (const KEntry &e, d->entryMap) {
            if (e.bDirty) {
                if (e.bGlobal) {
                    writeGlobals = true;
                } else {
                    writeLocals = true;
                }

                if (writeGlobals && writeLocals) {
                    break;
                }
            }
        }

        d->bDirty = false; // will revert to true if a config write fails

        if (d->wantGlobals() && writeGlobals) {
            QExplicitlySharedDataPointer<KConfigBackend> tmp = KConfigBackend::create(*sGlobalFileName);
            if (d->configState == ReadWrite && !tmp->lock()) {
                qWarning() << "couldn't lock global file";

                //unlock the local config if we're returning early
                if (d->mBackend->isLocked()) {
                    d->mBackend->unlock();
                }

                d->bDirty = true;
                return false;
            }
            if (!tmp->writeConfig(utf8Locale, d->entryMap, KConfigBackend::WriteGlobal)) {
                d->bDirty = true;
            }
            if (tmp->isLocked()) {
                tmp->unlock();
            }
        }

        if (writeLocals) {
            if (!d->mBackend->writeConfig(utf8Locale, d->entryMap, KConfigBackend::WriteOptions())) {
                d->bDirty = true;
            }
        }
        if (d->mBackend->isLocked()) {
            d->mBackend->unlock();
        }
    }
    return !d->bDirty;
}