qt-everywhere-src-5.15.1/qtbase/src/network/bearer/qsharednetworksession_p.h

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#ifndef QSHAREDNETWORKSESSIONPRIVATE_H
#define QSHAREDNETWORKSESSIONPRIVATE_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <QtNetwork/private/qtnetworkglobal_p.h>
#include "qnetworksession.h"
#include "qnetworkconfiguration.h"
#include <QSharedPointer>
#include <QWeakPointer>
#include <QMutex>

#include <unordered_map>

#ifndef QT_NO_BEARERMANAGEMENT

QT_BEGIN_NAMESPACE

namespace QtPrivate {
struct NetworkConfigurationHash {
    using result_type = size_t;
    using argument_type = QNetworkConfiguration;
    size_t operator()(const QNetworkConfiguration &config) const noexcept
    {
        return std::hash<size_t>{}(size_t(config.type()) | (size_t(config.bearerType()) << 8) | (size_t(config.purpose()) << 16));
    }
};
}

class QSharedNetworkSessionManager
{
public:
    static QSharedPointer<QNetworkSession> getSession(const QNetworkConfiguration &config);
    static void setSession(const QNetworkConfiguration &config, QSharedPointer<QNetworkSession> session);
private:
    std::unordered_map<QNetworkConfiguration, QWeakPointer<QNetworkSession>, QtPrivate::NetworkConfigurationHash> sessions;
};

QT_END_NAMESPACE

#endif // QT_NO_BEARERMANAGEMENT

#endif //QSHAREDNETWORKSESSIONPRIVATE_H