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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include <QtNetwork/private/qnetworkinformation_p.h>
#include <QtNetwork/private/qnetconmonitor_p.h>
#include <QtCore/qglobal.h>
#include <QtCore/private/qobject_p.h>
QT_BEGIN_NAMESPACE
Q_DECLARE_LOGGING_CATEGORY(lcNetInfoSCR)
Q_LOGGING_CATEGORY(lcNetInfoSCR, "qt.network.info.scnetworkreachability");
static QString backendName = QStringLiteral("scnetworkreachability");
class QSCNetworkReachabilityNetworkInformationBackend : public QNetworkInformationBackend
{
Q_OBJECT
public:
QSCNetworkReachabilityNetworkInformationBackend();
~QSCNetworkReachabilityNetworkInformationBackend();
QString name() const override { return backendName; }
QNetworkInformation::Features featuresSupported() const override
{
return featuresSupportedStatic();
}
static QNetworkInformation::Features featuresSupportedStatic()
{
return QNetworkInformation::Features(QNetworkInformation::Feature::Reachability);
}
private Q_SLOTS:
void reachabilityChanged(bool isOnline);
private:
Q_DISABLE_COPY_MOVE(QSCNetworkReachabilityNetworkInformationBackend);
QNetworkConnectionMonitor ipv4Probe;
QNetworkConnectionMonitor ipv6Probe;
};
class QSCNetworkReachabilityNetworkInformationBackendFactory : public QNetworkInformationBackendFactory
{
Q_OBJECT
Q_PLUGIN_METADATA(IID QNetworkInformationBackendFactory_iid)
Q_INTERFACES(QNetworkInformationBackendFactory)
public:
QSCNetworkReachabilityNetworkInformationBackendFactory() = default;
~QSCNetworkReachabilityNetworkInformationBackendFactory() = default;
QString name() const override { return backendName; }
QNetworkInformation::Features featuresSupported() const override
{
return QSCNetworkReachabilityNetworkInformationBackend::featuresSupportedStatic();
}
QNetworkInformationBackend *create(QNetworkInformation::Features requiredFeatures) const override
{
if ((requiredFeatures & featuresSupported()) != requiredFeatures)
return nullptr;
return new QSCNetworkReachabilityNetworkInformationBackend();
}
private:
Q_DISABLE_COPY_MOVE(QSCNetworkReachabilityNetworkInformationBackendFactory);
};
QSCNetworkReachabilityNetworkInformationBackend::QSCNetworkReachabilityNetworkInformationBackend()
{
bool isOnline = false;
if (ipv4Probe.setTargets(QHostAddress::AnyIPv4, {})) {
// We manage to create SCNetworkReachabilityRef for IPv4, let's
// read the last known state then!
isOnline |= ipv4Probe.isReachable();
ipv4Probe.startMonitoring();
}
if (ipv6Probe.setTargets(QHostAddress::AnyIPv6, {})) {
// We manage to create SCNetworkReachability ref for IPv6, let's
// read the last known state then!
isOnline |= ipv6Probe.isReachable();
ipv6Probe.startMonitoring();
}
reachabilityChanged(isOnline);
connect(&ipv4Probe, &QNetworkConnectionMonitor::reachabilityChanged, this,
&QSCNetworkReachabilityNetworkInformationBackend::reachabilityChanged,
Qt::QueuedConnection);
connect(&ipv6Probe, &QNetworkConnectionMonitor::reachabilityChanged, this,
&QSCNetworkReachabilityNetworkInformationBackend::reachabilityChanged,
Qt::QueuedConnection);
}
QSCNetworkReachabilityNetworkInformationBackend::~QSCNetworkReachabilityNetworkInformationBackend()
{
}
void QSCNetworkReachabilityNetworkInformationBackend::reachabilityChanged(bool isOnline)
{
setReachability(isOnline ? QNetworkInformation::Reachability::Online
: QNetworkInformation::Reachability::Disconnected);
}
QT_END_NAMESPACE
#include "qscnetworkreachabilitynetworkinformationbackend.moc"
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