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/****************************************************************************
**
** Copyright (C) 2021 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 "qsharednetworksession_p.h"
#include "qbearerengine_p.h"
#include <QThreadStorage>
#ifndef QT_NO_BEARERMANAGEMENT
QT_BEGIN_NAMESPACE
QThreadStorage<QSharedNetworkSessionManager *> tls;
inline QSharedNetworkSessionManager* sharedNetworkSessionManager()
{
QSharedNetworkSessionManager* rv = tls.localData();
if (!rv) {
rv = new QSharedNetworkSessionManager;
tls.setLocalData(rv);
}
return rv;
}
struct DeleteLater {
void operator()(QObject* obj) const
{
obj->deleteLater();
}
};
template <typename Container>
static void maybe_prune_expired(Container &c)
{
if (c.size() > 16) {
for (auto it = c.cbegin(), end = c.cend(); it != end; /*erasing*/) {
if (!it->second.lock())
it = c.erase(it);
else
++it;
}
}
}
QSharedPointer<QNetworkSession> QSharedNetworkSessionManager::getSession(const QNetworkConfiguration &config)
{
QSharedNetworkSessionManager *m = sharedNetworkSessionManager();
maybe_prune_expired(m->sessions);
auto &entry = m->sessions[config];
//if already have a session, return it
if (auto p = entry.toStrongRef())
return p;
//otherwise make one
QSharedPointer<QNetworkSession> session(new QNetworkSession(config), DeleteLater{});
entry = session;
return session;
}
void QSharedNetworkSessionManager::setSession(const QNetworkConfiguration &config, QSharedPointer<QNetworkSession> session)
{
QSharedNetworkSessionManager *m = sharedNetworkSessionManager();
m->sessions[config] = std::move(session);
}
QT_END_NAMESPACE
#endif // QT_NO_BEARERMANAGEMENT
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