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39
40#include "qsharednetworksession_p.h"
41#include "qbearerengine_p.h"
42#include <QThreadStorage>
43
44#ifndef QT_NO_BEARERMANAGEMENT
45
46QT_BEGIN_NAMESPACE
47
48QThreadStorage<QSharedNetworkSessionManager *> tls;
49
50inline QSharedNetworkSessionManager* sharedNetworkSessionManager()
51{
52 QSharedNetworkSessionManager* rv = tls.localData();
53 if (!rv) {
54 rv = new QSharedNetworkSessionManager;
55 tls.setLocalData(rv);
56 }
57 return rv;
58}
59
60struct DeleteLater {
61 void operator()(QObject* obj) const
62 {
63 obj->deleteLater();
64 }
65};
66
67template <typename Container>
68static void maybe_prune_expired(Container &c)
69{
70 if (c.size() > 16) {
71 for (auto it = c.cbegin(), end = c.cend(); it != end; /*erasing*/) {
72 if (!it->second.lock())
73 it = c.erase(it);
74 else
75 ++it;
76 }
77 }
78}
79
80QSharedPointer<QNetworkSession> QSharedNetworkSessionManager::getSession(const QNetworkConfiguration &config)
81{
82 QSharedNetworkSessionManager *m = sharedNetworkSessionManager();
83 maybe_prune_expired(c&: m->sessions);
84 auto &entry = m->sessions[config];
85 //if already have a session, return it
86 if (auto p = entry.toStrongRef())
87 return p;
88 //otherwise make one
89 QSharedPointer<QNetworkSession> session(new QNetworkSession(config), DeleteLater{});
90 entry = session;
91 return session;
92}
93
94void QSharedNetworkSessionManager::setSession(const QNetworkConfiguration &config, QSharedPointer<QNetworkSession> session)
95{
96 QSharedNetworkSessionManager *m = sharedNetworkSessionManager();
97 m->sessions[config] = std::move(session);
98}
99
100QT_END_NAMESPACE
101
102#endif // QT_NO_BEARERMANAGEMENT
103

source code of qtbase/src/network/bearer/qsharednetworksession.cpp