Code optimization

Made code to listen on a particular interface more robust

src/qtlibtorrent/qbtsession.cpp

@@ -197,14 +197,6 @@ void QBtSession::preAllocateAllFiles(bool b) {
   }
 }
 
-ScanFoldersModel* QBtSession::getScanFoldersModel() const {
-  return m_scanFolders;
-}
-
-bool QBtSession::isPexEnabled() const {
-  return PeXEnabled;
-}
-
 void QBtSession::processBigRatios() {
   if(ratio_limit < 0) return;
   qDebug("Process big ratios...");
@@ -243,10 +235,6 @@ void QBtSession::setDownloadLimit(QString hash, long val) {
   }
 }
 
-bool QBtSession::isQueueingEnabled() const {
-  return queueingEnabled;
-}
-
 void QBtSession::setUploadLimit(QString hash, long val) {
   qDebug("Set upload limit rate to %ld", val);
   QTorrentHandle h = getTorrentHandle(hash);
@@ -1358,15 +1346,6 @@ void QBtSession::setMaxUploadsPerTorrent(int max) {
   }
 }
 
-// Return DHT state
-bool QBtSession::isDHTEnabled() const{
-  return DHTEnabled;
-}
-
-bool QBtSession::isLSDEnabled() const{
-  return LSDEnabled;
-}
-
 void QBtSession::enableUPnP(bool b) {
   if(b) {
     if(!UPnPEnabled) {
@@ -1605,14 +1584,6 @@ void QBtSession::saveFastResumeData() {
   }
 }
 
-QStringList QBtSession::getConsoleMessages() const {
-  return consoleMessages;
-}
-
-QStringList QBtSession::getPeerBanMessages() const {
-  return peerBanMessages;
-}
-
 #ifdef DISABLE_GUI
 void QBtSession::addConsoleMessage(QString msg, QString) {
 #else
@@ -1666,14 +1637,6 @@ void QBtSession::addTorrentsFromScanFolder(QStringList &pathList) {
   }
 }
 
-QString QBtSession::getDefaultSavePath() const {
-  return defaultSavePath;
-}
-
-bool QBtSession::useTemporaryFolder() const {
-  return !defaultTempPath.isEmpty();
-}
-
 void QBtSession::setDefaultTempPath(QString temppath) {
   if(defaultTempPath == temppath)
     return;
@@ -1808,15 +1771,27 @@ void QBtSession::setListeningPort(int port) {
   }
   QNetworkInterface network_iface = QNetworkInterface::interfaceFromName(iface_name);
   if(!network_iface.isValid()) {
+    qDebug("Invalid network interface: %s", qPrintable(iface_name));
+    addConsoleMessage(tr("The network interface defined is invalid: %1").arg(iface_name), "red");
+    addConsoleMessage(tr("Trying any other network interface available instead."));
     s->listen_on(ports);
     return;
   }
-  QString ip = "127.0.0.1";
+  QString ip;
-  if(!network_iface.addressEntries().isEmpty()) {
+  qDebug("This network interface has %d IP addresses", network_iface.addressEntries().size());
-    ip = network_iface.addressEntries().first().ip().toString();
+  foreach(const QNetworkAddressEntry &entry, network_iface.addressEntries()) {
+    qDebug("Trying to listen on IP %s (%s)", qPrintable(entry.ip().toString()), qPrintable(iface_name));
+    if(s->listen_on(ports, qPrintable(entry.ip().toString()))) {
+      ip = entry.ip().toString();
+      break;
+    }
+  }
+  if(s->is_listening()) {
+    addConsoleMessage(tr("Listening on IP address %1 on network interface %2...").arg(ip).arg(iface_name));
+  } else {
+    qDebug("Failed to listen on any of the IP addresses");
+    addConsoleMessage(tr("Failed to listen on network interface %1").arg(iface_name), "red");
   }
-  qDebug("Listening on interface %s with ip %s", qPrintable(iface_name), qPrintable(ip));
-  s->listen_on(ports, ip.toLocal8Bit().constData());
 }
 
 // Set download rate limit
@@ -1827,10 +1802,6 @@ void QBtSession::setDownloadRateLimit(long rate) {
   s->set_download_rate_limit(rate);
 }
 
-session* QBtSession::getSession() const{
-  return s;
-}
-
 // Set upload rate limit
 // -1 to disable
 void QBtSession::setUploadRateLimit(long rate) {

src/qtlibtorrent/qbtsession.h

@@ -65,6 +65,10 @@ class ScanFoldersModel;
 class QBtSession : public QObject {
   Q_OBJECT
 
+private:
+  QBtSession(const QBtSession& other); // Present copy
+  QBtSession& operator=(const QBtSession& other);
+
 public:
   // Constructor / Destructor
   QBtSession();
@@ -72,31 +76,28 @@ public:
   QTorrentHandle getTorrentHandle(QString hash) const;
   std::vector<torrent_handle> getTorrents() const;
   bool isFilePreviewPossible(QString fileHash) const;
-  bool isDHTEnabled() const;
-  bool isLSDEnabled() const;
   float getPayloadDownloadRate() const;
   float getPayloadUploadRate() const;
   session_status getSessionStatus() const;
   int getListenPort() const;
   float getRealRatio(QString hash) const;
-  session* getSession() const;
   QHash<QString, TrackerInfos> getTrackersInfo(QString hash) const;
   bool hasActiveTorrents() const;
   bool hasDownloadingTorrents() const;
-  bool isQueueingEnabled() const;
+  //int getMaximumActiveDownloads() const;
-  int getMaximumActiveDownloads() const;
+  //int getMaximumActiveTorrents() const;
-  int getMaximumActiveTorrents() const;
   int loadTorrentPriority(QString hash);
-  QStringList getConsoleMessages() const;
-  QStringList getPeerBanMessages() const;
   qlonglong getETA(QString hash);
-  bool useTemporaryFolder() const;
+  inline QStringList getConsoleMessages() const { return consoleMessages; }
-  QString getDefaultSavePath() const;
+  inline QStringList getPeerBanMessages() const { return peerBanMessages; }
-  ScanFoldersModel* getScanFoldersModel() const;
+  inline session* getSession() const { return s; }
-  bool isPexEnabled() const;
+  inline bool useTemporaryFolder() const { return !defaultTempPath.isEmpty(); }
-#if LIBTORRENT_VERSION_MINOR < 15
+  inline QString getDefaultSavePath() const { return defaultSavePath; }
-  void saveDHTEntry();
+  inline ScanFoldersModel* getScanFoldersModel() const {  return m_scanFolders; }
-#endif
+  inline bool isDHTEnabled() const { return DHTEnabled; }
+  inline bool isLSDEnabled() const { return LSDEnabled; }
+  inline bool isPexEnabled() const { return DHTEnabled; }
+  inline bool isQueueingEnabled() const { return queueingEnabled; }
 
 public slots:
   QTorrentHandle addTorrent(QString path, bool fromScanDir = false, QString from_url = QString(), bool resumed = false);
@@ -183,6 +184,9 @@ protected slots:
   void cleanUpAutoRunProcess(int);
   void mergeTorrents(QTorrentHandle h_ex, boost::intrusive_ptr<torrent_info> t);
   void exportTorrentFile(QTorrentHandle h);
+#if LIBTORRENT_VERSION_MINOR < 15
+  void saveDHTEntry();
+#endif
 
 signals:
   void addedTorrent(QTorrentHandle& h);