Clean up code

and remove unused parameters/variables.

src/base/bittorrent/session.cpp

@@ -3766,14 +3766,13 @@ void Session::updateSeedingLimitTimer()
     }
 }
 
-void Session::handleTorrentShareLimitChanged(TorrentImpl *const torrent)
+void Session::handleTorrentShareLimitChanged(TorrentImpl *const)
 {
     updateSeedingLimitTimer();
 }
 
-void Session::handleTorrentNameChanged(TorrentImpl *const torrent)
+void Session::handleTorrentNameChanged(TorrentImpl *const)
 {
-    Q_UNUSED(torrent);
 }
 
 void Session::handleTorrentSavePathChanged(TorrentImpl *const torrent)
@@ -4653,11 +4652,11 @@ void Session::handleSessionStatsAlert(const lt::session_stats_alert *p)
     m_status.diskWriteQueue = stats[m_metricIndices.peer.numPeersDownDisk];
     m_status.peersCount = stats[m_metricIndices.peer.numPeersConnected];
 
-    const int64_t numBlocksRead = stats[m_metricIndices.disk.numBlocksRead];
     m_cacheStatus.totalUsedBuffers = stats[m_metricIndices.disk.diskBlocksInUse];
     m_cacheStatus.jobQueueLength = stats[m_metricIndices.disk.queuedDiskJobs];
 
 #if (LIBTORRENT_VERSION_NUM < 20000)
+    const int64_t numBlocksRead = stats[m_metricIndices.disk.numBlocksRead];
     const int64_t numBlocksCacheHits = stats[m_metricIndices.disk.numBlocksCacheHits];
     m_cacheStatus.readRatio = static_cast<qreal>(numBlocksCacheHits) / std::max<int64_t>((numBlocksCacheHits + numBlocksRead), 1);
 #endif

src/base/bittorrent/torrentimpl.cpp

@@ -1887,7 +1887,7 @@ void TorrentImpl::handleFileCompletedAlert(const lt::file_completed_alert *p)
 }
 
 #if (LIBTORRENT_VERSION_NUM >= 20003)
-void TorrentImpl::handleFilePrioAlert(const lt::file_prio_alert *p)
+void TorrentImpl::handleFilePrioAlert(const lt::file_prio_alert *)
 {
     if (m_nativeHandle.need_save_resume_data())
         m_session->handleTorrentNeedSaveResumeData(this);

src/gui/mainwindow.cpp

@@ -1664,11 +1664,14 @@ void MainWindow::reloadTorrentStats(const QVector<BitTorrent::Torrent *> &torren
 
 void MainWindow::showNotificationBaloon(const QString &title, const QString &msg) const
 {
-    if (!isNotificationsEnabled()) return;
+    if (!isNotificationsEnabled())
+        return;
+
 #if (defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)) && defined(QT_DBUS_LIB)
-    OrgFreedesktopNotificationsInterface notifications("org.freedesktop.Notifications",
-                                                  "/org/freedesktop/Notifications",
-                                                  QDBusConnection::sessionBus());
+    OrgFreedesktopNotificationsInterface notifications(QLatin1String("org.freedesktop.Notifications")
+        , QLatin1String("/org/freedesktop/Notifications")
+        , QDBusConnection::sessionBus());
+
     // Testing for 'notifications.isValid()' isn't helpful here.
     // If the notification daemon is configured to run 'as needed'
     // the above check can be false if the daemon wasn't started
@@ -1679,8 +1682,9 @@ void MainWindow::showNotificationBaloon(const QString &title, const QString &msg
     // to start their daemons at the session startup and have it sit
     // idling for the whole session.
     const QVariantMap hints {{QLatin1String("desktop-entry"), QLatin1String("org.qbittorrent.qBittorrent")}};
-    QDBusPendingReply<uint> reply = notifications.Notify("qBittorrent", 0, "qbittorrent", title,
-                                                         msg, QStringList(), hints, getNotificationTimeout());
+    QDBusPendingReply<uint> reply = notifications.Notify(QLatin1String("qBittorrent"), 0
+        , QLatin1String("qbittorrent"), title, msg, {}, hints, getNotificationTimeout());
+
     reply.waitForFinished();
     if (!reply.isError())
         return;