Merge pull request #14976 from Chocobo1/options

Add `connection_speed` to advanced settings
qbittorrent · May 23, 2021 · 40f6201 · 40f6201
2 parents 2e8e2b0 + c64e433
commit 40f6201
Show file tree

Hide file tree

Showing 11 changed files with 131 additions and 90 deletions.
diff --git a/src/base/bittorrent/dbresumedatastorage.cpp b/src/base/bittorrent/dbresumedatastorage.cpp
@@ -386,7 +386,7 @@ void BitTorrent::DBResumeDataStorage::createDB() const
         if (!db.commit())
             throw RuntimeError(db.lastError().text());
     }
-    catch (const RuntimeError &err)
+    catch (const RuntimeError &)
     {
         db.rollback();
         throw;
@@ -563,7 +563,7 @@ void BitTorrent::DBResumeDataStorage::Worker::storeQueue(const QVector<TorrentID
             if (!db.commit())
                 throw RuntimeError(db.lastError().text());
         }
-        catch (const RuntimeError &err)
+        catch (const RuntimeError &)
         {
             db.rollback();
             throw;

diff --git a/src/base/bittorrent/session.cpp b/src/base/bittorrent/session.cpp
@@ -354,6 +354,7 @@ Session::Session(QObject *parent)
     , m_sendBufferWatermark(BITTORRENT_SESSION_KEY("SendBufferWatermark"), 500)
     , m_sendBufferLowWatermark(BITTORRENT_SESSION_KEY("SendBufferLowWatermark"), 10)
     , m_sendBufferWatermarkFactor(BITTORRENT_SESSION_KEY("SendBufferWatermarkFactor"), 50)
+    , m_connectionSpeed(BITTORRENT_SESSION_KEY("ConnectionSpeed"), 30)
     , m_socketBacklogSize(BITTORRENT_SESSION_KEY("SocketBacklogSize"), 30)
     , m_isAnonymousModeEnabled(BITTORRENT_SESSION_KEY("AnonymousModeEnabled"), false)
     , m_isQueueingEnabled(BITTORRENT_SESSION_KEY("QueueingSystemEnabled"), false)
@@ -1073,7 +1074,6 @@ void Session::initializeNativeSession()
     // Speed up exit
     pack.set_int(lt::settings_pack::auto_scrape_interval, 1200); // 20 minutes
     pack.set_int(lt::settings_pack::auto_scrape_min_interval, 900); // 15 minutes
-    pack.set_int(lt::settings_pack::connection_speed, 20); // default is 10
     // libtorrent 1.1 enables UPnP & NAT-PMP by default
     // turn them off before `lt::session` ctor to avoid split second effects
     pack.set_bool(lt::settings_pack::enable_upnp, false);
@@ -1190,6 +1190,8 @@ void Session::initMetrics()
 
 void Session::loadLTSettings(lt::settings_pack &settingsPack)
 {
+    settingsPack.set_int(lt::settings_pack::connection_speed, connectionSpeed());
+
     // from libtorrent doc:
     // It will not take affect until the listen_interfaces settings is updated
     settingsPack.set_int(lt::settings_pack::listen_queue_size, socketBacklogSize());
@@ -3330,6 +3332,19 @@ void Session::setSendBufferWatermarkFactor(const int value)
     configureDeferred();
 }
 
+int Session::connectionSpeed() const
+{
+    return m_connectionSpeed;
+}
+
+void Session::setConnectionSpeed(const int value)
+{
+    if (value == m_connectionSpeed) return;
+
+    m_connectionSpeed = value;
+    configureDeferred();
+}
+
 int Session::socketBacklogSize() const
 {
     return m_socketBacklogSize;

diff --git a/src/base/bittorrent/session.h b/src/base/bittorrent/session.h
@@ -372,6 +372,8 @@ namespace BitTorrent
         void setSendBufferLowWatermark(int value);
         int sendBufferWatermarkFactor() const;
         void setSendBufferWatermarkFactor(int value);
+        int connectionSpeed() const;
+        void setConnectionSpeed(int value);
         int socketBacklogSize() const;
         void setSocketBacklogSize(int value);
         bool isAnonymousModeEnabled() const;
@@ -675,6 +677,7 @@ namespace BitTorrent
         CachedSettingValue<int> m_sendBufferWatermark;
         CachedSettingValue<int> m_sendBufferLowWatermark;
         CachedSettingValue<int> m_sendBufferWatermarkFactor;
+        CachedSettingValue<int> m_connectionSpeed;
         CachedSettingValue<int> m_socketBacklogSize;
         CachedSettingValue<bool> m_isAnonymousModeEnabled;
         CachedSettingValue<bool> m_isQueueingEnabled;

diff --git a/src/base/http/types.h b/src/base/http/types.h
@@ -35,43 +35,43 @@
 
 namespace Http
 {
-    const char METHOD_GET[] = "GET";
-    const char METHOD_POST[] = "POST";
-
-    const char HEADER_CACHE_CONTROL[] = "cache-control";
-    const char HEADER_CONNECTION[] = "connection";
-    const char HEADER_CONTENT_DISPOSITION[] = "content-disposition";
-    const char HEADER_CONTENT_ENCODING[] = "content-encoding";
-    const char HEADER_CONTENT_LENGTH[] = "content-length";
-    const char HEADER_CONTENT_SECURITY_POLICY[] = "content-security-policy";
-    const char HEADER_CONTENT_TYPE[] = "content-type";
-    const char HEADER_DATE[] = "date";
-    const char HEADER_HOST[] = "host";
-    const char HEADER_ORIGIN[] = "origin";
-    const char HEADER_REFERER[] = "referer";
-    const char HEADER_REFERRER_POLICY[] = "referrer-policy";
-    const char HEADER_SET_COOKIE[] = "set-cookie";
-    const char HEADER_X_CONTENT_TYPE_OPTIONS[] = "x-content-type-options";
-    const char HEADER_X_FORWARDED_HOST[] = "x-forwarded-host";
-    const char HEADER_X_FRAME_OPTIONS[] = "x-frame-options";
-    const char HEADER_X_XSS_PROTECTION[] = "x-xss-protection";
-
-    const char HEADER_REQUEST_METHOD_GET[] = "GET";
-    const char HEADER_REQUEST_METHOD_HEAD[] = "HEAD";
-    const char HEADER_REQUEST_METHOD_POST[] = "POST";
-
-    const char CONTENT_TYPE_HTML[] = "text/html";
-    const char CONTENT_TYPE_CSS[] = "text/css";
-    const char CONTENT_TYPE_TXT[] = "text/plain; charset=UTF-8";
-    const char CONTENT_TYPE_JS[] = "application/javascript";
-    const char CONTENT_TYPE_JSON[] = "application/json";
-    const char CONTENT_TYPE_GIF[] = "image/gif";
-    const char CONTENT_TYPE_PNG[] = "image/png";
-    const char CONTENT_TYPE_FORM_ENCODED[] = "application/x-www-form-urlencoded";
-    const char CONTENT_TYPE_FORM_DATA[] = "multipart/form-data";
+    inline const char METHOD_GET[] = "GET";
+    inline const char METHOD_POST[] = "POST";
+
+    inline const char HEADER_CACHE_CONTROL[] = "cache-control";
+    inline const char HEADER_CONNECTION[] = "connection";
+    inline const char HEADER_CONTENT_DISPOSITION[] = "content-disposition";
+    inline const char HEADER_CONTENT_ENCODING[] = "content-encoding";
+    inline const char HEADER_CONTENT_LENGTH[] = "content-length";
+    inline const char HEADER_CONTENT_SECURITY_POLICY[] = "content-security-policy";
+    inline const char HEADER_CONTENT_TYPE[] = "content-type";
+    inline const char HEADER_DATE[] = "date";
+    inline const char HEADER_HOST[] = "host";
+    inline const char HEADER_ORIGIN[] = "origin";
+    inline const char HEADER_REFERER[] = "referer";
+    inline const char HEADER_REFERRER_POLICY[] = "referrer-policy";
+    inline const char HEADER_SET_COOKIE[] = "set-cookie";
+    inline const char HEADER_X_CONTENT_TYPE_OPTIONS[] = "x-content-type-options";
+    inline const char HEADER_X_FORWARDED_HOST[] = "x-forwarded-host";
+    inline const char HEADER_X_FRAME_OPTIONS[] = "x-frame-options";
+    inline const char HEADER_X_XSS_PROTECTION[] = "x-xss-protection";
+
+    inline const char HEADER_REQUEST_METHOD_GET[] = "GET";
+    inline const char HEADER_REQUEST_METHOD_HEAD[] = "HEAD";
+    inline const char HEADER_REQUEST_METHOD_POST[] = "POST";
+
+    inline const char CONTENT_TYPE_HTML[] = "text/html";
+    inline const char CONTENT_TYPE_CSS[] = "text/css";
+    inline const char CONTENT_TYPE_TXT[] = "text/plain; charset=UTF-8";
+    inline const char CONTENT_TYPE_JS[] = "application/javascript";
+    inline const char CONTENT_TYPE_JSON[] = "application/json";
+    inline const char CONTENT_TYPE_GIF[] = "image/gif";
+    inline const char CONTENT_TYPE_PNG[] = "image/png";
+    inline const char CONTENT_TYPE_FORM_ENCODED[] = "application/x-www-form-urlencoded";
+    inline const char CONTENT_TYPE_FORM_DATA[] = "multipart/form-data";
 
     // portability: "\r\n" doesn't guarantee mapping to the correct symbol
-    const char CRLF[] = {0x0D, 0x0A, '\0'};
+    inline const char CRLF[] = {0x0D, 0x0A, '\0'};
 
     struct Environment
     {
@@ -120,7 +120,7 @@ namespace Http
         HeaderMap headers;
         QByteArray content;
 
-        Response(uint code = 200, const QString &text = "OK")
+        Response(uint code = 200, const QString &text = QLatin1String("OK"))
             : status {code, text}
         {
         }

diff --git a/src/gui/advancedsettings.cpp b/src/gui/advancedsettings.cpp
@@ -116,6 +116,7 @@ namespace
         SEND_BUF_LOW_WATERMARK,
         SEND_BUF_WATERMARK_FACTOR,
         // networking & ports
+        CONNECTION_SPEED,
         SOCKET_BACKLOG_SIZE,
         OUTGOING_PORT_MIN,
         OUTGOING_PORT_MAX,
@@ -224,6 +225,8 @@ void AdvancedSettings::saveAdvancedSettings()
     session->setSendBufferWatermark(m_spinBoxSendBufferWatermark.value());
     session->setSendBufferLowWatermark(m_spinBoxSendBufferLowWatermark.value());
     session->setSendBufferWatermarkFactor(m_spinBoxSendBufferWatermarkFactor.value());
+    // Outgoing connections per second
+    session->setConnectionSpeed(m_spinBoxConnectionSpeed.value());
     // Socket listen backlog size
     session->setSocketBacklogSize(m_spinBoxSocketBacklogSize.value());
     // Save resume data interval
@@ -528,6 +531,12 @@ void AdvancedSettings::loadAdvancedSettings()
     m_spinBoxSendBufferWatermarkFactor.setValue(session->sendBufferWatermarkFactor());
     addRow(SEND_BUF_WATERMARK_FACTOR, (tr("Send buffer watermark factor") + ' ' + makeLink("https://www.libtorrent.org/reference-Settings.html#send_buffer_watermark_factor", "(?)"))
             , &m_spinBoxSendBufferWatermarkFactor);
+    // Outgoing connections per second
+    m_spinBoxConnectionSpeed.setMinimum(0);
+    m_spinBoxConnectionSpeed.setMaximum(std::numeric_limits<int>::max());
+    m_spinBoxConnectionSpeed.setValue(session->connectionSpeed());
+    addRow(CONNECTION_SPEED, (tr("Outgoing connections per second") + ' ' + makeLink("https://www.libtorrent.org/reference-Settings.html#connection_speed", "(?)"))
+            , &m_spinBoxConnectionSpeed);
     // Socket listen backlog size
     m_spinBoxSocketBacklogSize.setMinimum(1);
     m_spinBoxSocketBacklogSize.setMaximum(std::numeric_limits<int>::max());

diff --git a/src/gui/advancedsettings.h b/src/gui/advancedsettings.h
@@ -63,7 +63,7 @@ private slots:
     QSpinBox m_spinBoxAsyncIOThreads, m_spinBoxFilePoolSize, m_spinBoxCheckingMemUsage,
              m_spinBoxSaveResumeDataInterval, m_spinBoxOutgoingPortsMin, m_spinBoxOutgoingPortsMax, m_spinBoxUPnPLeaseDuration, m_spinBoxPeerToS,
              m_spinBoxListRefresh, m_spinBoxTrackerPort, m_spinBoxSendBufferWatermark, m_spinBoxSendBufferLowWatermark,
-             m_spinBoxSendBufferWatermarkFactor, m_spinBoxSocketBacklogSize, m_spinBoxMaxConcurrentHTTPAnnounces, m_spinBoxStopTrackerTimeout,
+             m_spinBoxSendBufferWatermarkFactor, m_spinBoxConnectionSpeed, m_spinBoxSocketBacklogSize, m_spinBoxMaxConcurrentHTTPAnnounces, m_spinBoxStopTrackerTimeout,
              m_spinBoxSavePathHistoryLength, m_spinBoxPeerTurnover, m_spinBoxPeerTurnoverCutoff, m_spinBoxPeerTurnoverInterval;
     QCheckBox m_checkBoxOsCache, m_checkBoxRecheckCompleted, m_checkBoxResolveCountries, m_checkBoxResolveHosts,
               m_checkBoxProgramNotifications, m_checkBoxTorrentAddedNotifications, m_checkBoxReannounceWhenAddressChanged, m_checkBoxTrackerFavicon, m_checkBoxTrackerStatus,

diff --git a/src/webui/api/appcontroller.cpp b/src/webui/api/appcontroller.cpp
@@ -313,6 +313,8 @@ void AppController::preferencesAction()
     data["send_buffer_watermark"] = session->sendBufferWatermark();
     data["send_buffer_low_watermark"] = session->sendBufferLowWatermark();
     data["send_buffer_watermark_factor"] = session->sendBufferWatermarkFactor();
+    // Outgoing connections per second
+    data["connection_speed"] = session->connectionSpeed();
     // Socket listen backlog size
     data["socket_backlog_size"] = session->socketBacklogSize();
     // Outgoing ports
@@ -776,6 +778,9 @@ void AppController::setPreferencesAction()
         session->setSendBufferLowWatermark(it.value().toInt());
     if (hasKey("send_buffer_watermark_factor"))
         session->setSendBufferWatermarkFactor(it.value().toInt());
+    // Outgoing connections per second
+    if (hasKey("connection_speed"))
+        session->setConnectionSpeed(it.value().toInt());
     // Socket listen backlog size
     if (hasKey("socket_backlog_size"))
         session->setSocketBacklogSize(it.value().toInt());

diff --git a/src/webui/api/serialize/serialize_torrent.h b/src/webui/api/serialize/serialize_torrent.h
@@ -36,51 +36,51 @@ namespace BitTorrent
 }
 
 // Torrent keys
-const char KEY_TORRENT_ID[] = "hash";
-const char KEY_TORRENT_NAME[] = "name";
-const char KEY_TORRENT_MAGNET_URI[] = "magnet_uri";
-const char KEY_TORRENT_SIZE[] = "size";
-const char KEY_TORRENT_PROGRESS[] = "progress";
-const char KEY_TORRENT_DLSPEED[] = "dlspeed";
-const char KEY_TORRENT_UPSPEED[] = "upspeed";
-const char KEY_TORRENT_QUEUE_POSITION[] = "priority";
-const char KEY_TORRENT_SEEDS[] = "num_seeds";
-const char KEY_TORRENT_NUM_COMPLETE[] = "num_complete";
-const char KEY_TORRENT_LEECHS[] = "num_leechs";
-const char KEY_TORRENT_NUM_INCOMPLETE[] = "num_incomplete";
-const char KEY_TORRENT_RATIO[] = "ratio";
-const char KEY_TORRENT_ETA[] = "eta";
-const char KEY_TORRENT_STATE[] = "state";
-const char KEY_TORRENT_SEQUENTIAL_DOWNLOAD[] = "seq_dl";
-const char KEY_TORRENT_FIRST_LAST_PIECE_PRIO[] = "f_l_piece_prio";
-const char KEY_TORRENT_CATEGORY[] = "category";
-const char KEY_TORRENT_TAGS[] = "tags";
-const char KEY_TORRENT_SUPER_SEEDING[] = "super_seeding";
-const char KEY_TORRENT_FORCE_START[] = "force_start";
-const char KEY_TORRENT_SAVE_PATH[] = "save_path";
-const char KEY_TORRENT_CONTENT_PATH[] = "content_path";
-const char KEY_TORRENT_ADDED_ON[] = "added_on";
-const char KEY_TORRENT_COMPLETION_ON[] = "completion_on";
-const char KEY_TORRENT_TRACKER[] = "tracker";
-const char KEY_TORRENT_TRACKERS_COUNT[] = "trackers_count";
-const char KEY_TORRENT_DL_LIMIT[] = "dl_limit";
-const char KEY_TORRENT_UP_LIMIT[] = "up_limit";
-const char KEY_TORRENT_AMOUNT_DOWNLOADED[] = "downloaded";
-const char KEY_TORRENT_AMOUNT_UPLOADED[] = "uploaded";
-const char KEY_TORRENT_AMOUNT_DOWNLOADED_SESSION[] = "downloaded_session";
-const char KEY_TORRENT_AMOUNT_UPLOADED_SESSION[] = "uploaded_session";
-const char KEY_TORRENT_AMOUNT_LEFT[] = "amount_left";
-const char KEY_TORRENT_AMOUNT_COMPLETED[] = "completed";
-const char KEY_TORRENT_MAX_RATIO[] = "max_ratio";
-const char KEY_TORRENT_MAX_SEEDING_TIME[] = "max_seeding_time";
-const char KEY_TORRENT_RATIO_LIMIT[] = "ratio_limit";
-const char KEY_TORRENT_SEEDING_TIME_LIMIT[] = "seeding_time_limit";
-const char KEY_TORRENT_LAST_SEEN_COMPLETE_TIME[] = "seen_complete";
-const char KEY_TORRENT_LAST_ACTIVITY_TIME[] = "last_activity";
-const char KEY_TORRENT_TOTAL_SIZE[] = "total_size";
-const char KEY_TORRENT_AUTO_TORRENT_MANAGEMENT[] = "auto_tmm";
-const char KEY_TORRENT_TIME_ACTIVE[] = "time_active";
-const char KEY_TORRENT_SEEDING_TIME[] = "seeding_time";
-const char KEY_TORRENT_AVAILABILITY[] = "availability";
+inline const char KEY_TORRENT_ID[] = "hash";
+inline const char KEY_TORRENT_NAME[] = "name";
+inline const char KEY_TORRENT_MAGNET_URI[] = "magnet_uri";
+inline const char KEY_TORRENT_SIZE[] = "size";
+inline const char KEY_TORRENT_PROGRESS[] = "progress";
+inline const char KEY_TORRENT_DLSPEED[] = "dlspeed";
+inline const char KEY_TORRENT_UPSPEED[] = "upspeed";
+inline const char KEY_TORRENT_QUEUE_POSITION[] = "priority";
+inline const char KEY_TORRENT_SEEDS[] = "num_seeds";
+inline const char KEY_TORRENT_NUM_COMPLETE[] = "num_complete";
+inline const char KEY_TORRENT_LEECHS[] = "num_leechs";
+inline const char KEY_TORRENT_NUM_INCOMPLETE[] = "num_incomplete";
+inline const char KEY_TORRENT_RATIO[] = "ratio";
+inline const char KEY_TORRENT_ETA[] = "eta";
+inline const char KEY_TORRENT_STATE[] = "state";
+inline const char KEY_TORRENT_SEQUENTIAL_DOWNLOAD[] = "seq_dl";
+inline const char KEY_TORRENT_FIRST_LAST_PIECE_PRIO[] = "f_l_piece_prio";
+inline const char KEY_TORRENT_CATEGORY[] = "category";
+inline const char KEY_TORRENT_TAGS[] = "tags";
+inline const char KEY_TORRENT_SUPER_SEEDING[] = "super_seeding";
+inline const char KEY_TORRENT_FORCE_START[] = "force_start";
+inline const char KEY_TORRENT_SAVE_PATH[] = "save_path";
+inline const char KEY_TORRENT_CONTENT_PATH[] = "content_path";
+inline const char KEY_TORRENT_ADDED_ON[] = "added_on";
+inline const char KEY_TORRENT_COMPLETION_ON[] = "completion_on";
+inline const char KEY_TORRENT_TRACKER[] = "tracker";
+inline const char KEY_TORRENT_TRACKERS_COUNT[] = "trackers_count";
+inline const char KEY_TORRENT_DL_LIMIT[] = "dl_limit";
+inline const char KEY_TORRENT_UP_LIMIT[] = "up_limit";
+inline const char KEY_TORRENT_AMOUNT_DOWNLOADED[] = "downloaded";
+inline const char KEY_TORRENT_AMOUNT_UPLOADED[] = "uploaded";
+inline const char KEY_TORRENT_AMOUNT_DOWNLOADED_SESSION[] = "downloaded_session";
+inline const char KEY_TORRENT_AMOUNT_UPLOADED_SESSION[] = "uploaded_session";
+inline const char KEY_TORRENT_AMOUNT_LEFT[] = "amount_left";
+inline const char KEY_TORRENT_AMOUNT_COMPLETED[] = "completed";
+inline const char KEY_TORRENT_MAX_RATIO[] = "max_ratio";
+inline const char KEY_TORRENT_MAX_SEEDING_TIME[] = "max_seeding_time";
+inline const char KEY_TORRENT_RATIO_LIMIT[] = "ratio_limit";
+inline const char KEY_TORRENT_SEEDING_TIME_LIMIT[] = "seeding_time_limit";
+inline const char KEY_TORRENT_LAST_SEEN_COMPLETE_TIME[] = "seen_complete";
+inline const char KEY_TORRENT_LAST_ACTIVITY_TIME[] = "last_activity";
+inline const char KEY_TORRENT_TOTAL_SIZE[] = "total_size";
+inline const char KEY_TORRENT_AUTO_TORRENT_MANAGEMENT[] = "auto_tmm";
+inline const char KEY_TORRENT_TIME_ACTIVE[] = "time_active";
+inline const char KEY_TORRENT_SEEDING_TIME[] = "seeding_time";
+inline const char KEY_TORRENT_AVAILABILITY[] = "availability";
 
 QVariantMap serialize(const BitTorrent::Torrent &torrent);
diff --git a/src/webui/webapplication.cpp b/src/webui/webapplication.cpp
@@ -62,7 +62,8 @@
 #include "api/torrentscontroller.h"
 #include "api/transfercontroller.h"
 
-constexpr int MAX_ALLOWED_FILESIZE = 10 * 1024 * 1024;
+const int MAX_ALLOWED_FILESIZE = 10 * 1024 * 1024;
+const char C_SID[] = "SID"; // name of session id cookie
 
 const QString PATH_PREFIX_ICONS {QStringLiteral("/icons/")};
 const QString WWW_FOLDER {QStringLiteral(":/www")};

diff --git a/src/webui/webapplication.h b/src/webui/webapplication.h
@@ -43,13 +43,11 @@
 #include "base/utils/net.h"
 #include "base/utils/version.h"
 
-constexpr Utils::Version<int, 3, 2> API_VERSION {2, 8, 2};
+inline const Utils::Version<int, 3, 2> API_VERSION {2, 8, 3};
 
 class APIController;
 class WebApplication;
 
-constexpr char C_SID[] = "SID"; // name of session id cookie
-
 class WebSession final : public ISession
 {
 public:

diff --git a/src/webui/www/private/views/preferences.html b/src/webui/www/private/views/preferences.html
@@ -1055,6 +1055,14 @@
                     <input type="text" id="sendBufferWatermarkFactor" style="width: 15em;" />&nbsp;&nbsp;%
                 </td>
             </tr>
+            <tr>
+                <td>
+                    <label for="connectionSpeed">QBT_TR(Outgoing connections per second:)QBT_TR[CONTEXT=OptionsDialog]&nbsp;<a href="https://www.libtorrent.org/reference-Settings.html#connection_speed" target="_blank">(?)</a></label>
+                </td>
+                <td>
+                    <input type="text" id="connectionSpeed" style="width: 15em;" />
+                </td>
+            </tr>
             <tr>
                 <td>
                     <label for="socketBacklogSize">QBT_TR(Socket backlog size:)QBT_TR[CONTEXT=OptionsDialog]&nbsp;<a href="https://www.libtorrent.org/reference-Settings.html#listen_queue_size" target="_blank">(?)</a></label>
@@ -1905,6 +1913,7 @@
                         $('sendBufferWatermark').setProperty('value', pref.send_buffer_watermark);
                         $('sendBufferLowWatermark').setProperty('value', pref.send_buffer_low_watermark);
                         $('sendBufferWatermarkFactor').setProperty('value', pref.send_buffer_watermark_factor);
+                        $('connectionSpeed').setProperty('value', pref.connection_speed);
                         $('socketBacklogSize').setProperty('value', pref.socket_backlog_size);
                         $('outgoingPortsMin').setProperty('value', pref.outgoing_ports_min);
                         $('outgoingPortsMax').setProperty('value', pref.outgoing_ports_max);
@@ -2295,6 +2304,7 @@
             settings.set('send_buffer_watermark', $('sendBufferWatermark').getProperty('value'));
             settings.set('send_buffer_low_watermark', $('sendBufferLowWatermark').getProperty('value'));
             settings.set('send_buffer_watermark_factor', $('sendBufferWatermarkFactor').getProperty('value'));
+            settings.set('connection_speed', $('connectionSpeed').getProperty('value'));
             settings.set('socket_backlog_size', $('socketBacklogSize').getProperty('value'));
             settings.set('outgoing_ports_min', $('outgoingPortsMin').getProperty('value'));
             settings.set('outgoing_ports_max', $('outgoingPortsMax').getProperty('value'));