qnetworkconfigmanager.cpp

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#include "qnetworkconfigmanager.h"

#include "qnetworkconfigmanager_p.h"
#include "qbearerengine_p.h"

#include <QtCore/qstringlist.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qmutex.h>
#include <QtCore/qthread.h>
#include <QtCore/private/qcoreapplication_p.h>

#ifndef QT_NO_BEARERMANAGEMENT

QT_BEGIN_NAMESPACE

static QBasicAtomicPointer<QNetworkConfigurationManagerPrivate> connManager_ptr;
Q_GLOBAL_STATIC(QMutex, connManager_mutex)
static QBasicAtomicInt appShutdown;

static void connManager_cleanup()
{
    // this is not atomic or thread-safe!
    int shutdown = appShutdown.fetchAndStoreAcquire(1);
    Q_ASSERT(shutdown == 0);
    if(connManager_ptr)
        connManager_ptr->cleanup();
    connManager_ptr = 0;
}

void QNetworkConfigurationManagerPrivate::addPostRoutine()
{
    qAddPostRoutine(connManager_cleanup);
}

static QNetworkConfigurationManagerPrivate *connManager()
{
    QNetworkConfigurationManagerPrivate *ptr = connManager_ptr.fetchAndAddAcquire(0);
    if (!ptr && !appShutdown) {
        QMutexLocker locker(connManager_mutex());
        if (!(ptr = connManager_ptr.fetchAndAddAcquire(0))) {
            ptr = new QNetworkConfigurationManagerPrivate;

            if (QCoreApplicationPrivate::mainThread() == QThread::currentThread()) {
                // right thread or no main thread yet
                ptr->addPostRoutine();
                ptr->initialize();
            } else {
                // wrong thread, we need to make the main thread do this
                QObject *obj = new QObject;
                QObject::connect(obj, SIGNAL(destroyed()), ptr, SLOT(addPostRoutine()), Qt::DirectConnection);
                ptr->initialize(); // this moves us to the right thread
                obj->moveToThread(QCoreApplicationPrivate::mainThread());
                obj->deleteLater();
            }

            connManager_ptr.fetchAndStoreRelease(ptr);
        }
    }
    return ptr;
}

QNetworkConfigurationManagerPrivate *qNetworkConfigurationManagerPrivate()
{
    return connManager();
}

QNetworkConfigurationManager::QNetworkConfigurationManager(QObject *parent)
    : QObject(parent)
{
    QNetworkConfigurationManagerPrivate *priv = qNetworkConfigurationManagerPrivate();

    connect(priv, SIGNAL(configurationAdded(QNetworkConfiguration)),
            this, SIGNAL(configurationAdded(QNetworkConfiguration)));
    connect(priv, SIGNAL(configurationRemoved(QNetworkConfiguration)),
            this, SIGNAL(configurationRemoved(QNetworkConfiguration)));
    connect(priv, SIGNAL(configurationChanged(QNetworkConfiguration)),
            this, SIGNAL(configurationChanged(QNetworkConfiguration)));
    connect(priv, SIGNAL(onlineStateChanged(bool)),
            this, SIGNAL(onlineStateChanged(bool)));
    connect(priv, SIGNAL(configurationUpdateComplete()),
            this, SIGNAL(updateCompleted()));

    priv->enablePolling();
}

QNetworkConfigurationManager::~QNetworkConfigurationManager()
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        priv->disablePolling();
}


QNetworkConfiguration QNetworkConfigurationManager::defaultConfiguration() const
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        return priv->defaultConfiguration();

    return QNetworkConfiguration();
}

QList<QNetworkConfiguration> QNetworkConfigurationManager::allConfigurations(QNetworkConfiguration::StateFlags filter) const
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        return priv->allConfigurations(filter);

    return QList<QNetworkConfiguration>();
}

QNetworkConfiguration QNetworkConfigurationManager::configurationFromIdentifier(const QString &identifier) const
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        return priv->configurationFromIdentifier(identifier);

    return QNetworkConfiguration();
}

bool QNetworkConfigurationManager::isOnline() const
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        return priv->isOnline();

    return false;
}

QNetworkConfigurationManager::Capabilities QNetworkConfigurationManager::capabilities() const
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        return priv->capabilities();

    return QNetworkConfigurationManager::Capabilities(0);
}

void QNetworkConfigurationManager::updateConfigurations()
{
    QNetworkConfigurationManagerPrivate *priv = connManager();
    if (priv)
        priv->performAsyncConfigurationUpdate();
}

#include "moc_qnetworkconfigmanager.cpp"

QT_END_NAMESPACE

#endif // QT_NO_BEARERMANAGEMENT