VoIP: VoIP calls statistics are cleared when retap is issued

Every press of Play Stream or Prepare Filter caused incorrect increasing
of Packets count and added Comments.
The reason was that callinfo statistics were not clear before recap
therefore all new values were added to exiting ones.
Patch solves it.

ui/qt/models/voip_calls_info_model.cpp

@@ -198,6 +198,13 @@ void VoipCallsInfoModel::updateCalls(GQueue *callsinfos)
     }
 }
 
+void VoipCallsInfoModel::removeAllCalls()
+{
+    beginRemoveRows(QModelIndex(), 0, rowCount() - 1);
+    callinfos_.clear();
+    endRemoveRows();
+}
+
 
 // Proxy model that allows columns to be sorted.
 VoipCallsInfoSortedModel::VoipCallsInfoSortedModel(QObject *parent) :

ui/qt/models/voip_calls_info_model.h

@@ -33,6 +33,7 @@ public:
     void setTimeOfDay(bool timeOfDay);
     bool timeOfDay() const;
     void updateCalls(GQueue *callsinfos);
+    void removeAllCalls();
 
     static voip_calls_info_t *indexToCallInfo(const QModelIndex &index);
 

ui/qt/voip_calls_dialog.cpp

@@ -81,6 +81,7 @@ VoipCallsDialog::VoipCallsDialog(QWidget &parent, CaptureFile &cf, bool all_flow
 
     memset (&tapinfo_, 0, sizeof(tapinfo_));
     tapinfo_.tap_packet = tapPacket;
+    tapinfo_.tap_reset = tapReset;
     tapinfo_.tap_draw = tapDraw;
     tapinfo_.tap_data = this;
     tapinfo_.callsinfos = g_queue_new();
@@ -176,10 +177,13 @@ void VoipCallsDialog::changeEvent(QEvent *event)
     QDialog::changeEvent(event);
 }
 
-//void VoipCallsDialog::tapReset(void *)
+void VoipCallsDialog::tapReset(void *tapinfo_ptr)
-//{
+{
-//    voip_calls_tapinfo_t *tapinfo = (voip_calls_tapinfo_t *) tapinfo_ptr;
+    voip_calls_tapinfo_t *tapinfo = static_cast<voip_calls_tapinfo_t *>(tapinfo_ptr);
-//}
+    VoipCallsDialog *voip_calls_dialog = static_cast<VoipCallsDialog *>(tapinfo->tap_data);
+    voip_calls_dialog->call_infos_model_->removeAllCalls();
+    voip_calls_reset_all_taps(tapinfo);
+}
 
 tap_packet_status VoipCallsDialog::tapPacket(void *, packet_info *, epan_dissect_t *, const void *)
 {

ui/qt/voip_calls_dialog.h

@@ -68,7 +68,7 @@ private:
     bool voip_calls_tap_listeners_removed_;
 
     // Tap callbacks
-//    static void tapReset(void *tapinfo_ptr);
+    static void tapReset(void *tapinfo_ptr);
     static tap_packet_status tapPacket(void *tapinfo_ptr, packet_info *pinfo, epan_dissect_t *, const void *data);
     static void tapDraw(void *tapinfo_ptr);
 

ui/voip_calls.c

@@ -286,7 +286,10 @@ voip_calls_reset_all_taps(voip_calls_tapinfo_t *tapinfo)
     g_queue_clear(tapinfo->callsinfos);
     /* free the SIP_HASH */
     if(NULL!=tapinfo->callsinfo_hashtable[SIP_HASH])
+    {
         g_hash_table_remove_all (tapinfo->callsinfo_hashtable[SIP_HASH]);
+        tapinfo->callsinfo_hashtable[SIP_HASH] = NULL;
+    }
 
     /* free the strinfo data items first */
     list = g_list_first(tapinfo->rtpstream_list);