con.diff

diff --git a/src/connection/connection.cpp b/src/connection/connection.cpp
index 3b9d95b..a62adee 100644
--- a/src/connection/connection.cpp
+++ b/src/connection/connection.cpp
@@ -25,7 +25,7 @@
 #include "../WorkTab/WorkTab.h"
 
 Connection::Connection()
-    : m_type(0), m_state(st_disconnected), m_refcount(1), m_removable(true)
+    : m_type(0), m_state(st_disconnected), m_refcount(1), m_tabcount(0), m_removable(true)
 {
 }
 
@@ -69,6 +69,19 @@ void Connection::release()
         delete this;
 }
 
+void Connection::addTabRef()
+{
+    addRef();
+    ++m_tabcount;
+}
+
+void Connection::releaseTab()
+{
+    if(--m_tabcount == 0)
+        Close();
+    release();
+}
+
 QHash<QString, QVariant> Connection::config() const
 {
     QHash<QString, QVariant> res;
diff --git a/src/connection/connection.h b/src/connection/connection.h
index 905a0b9..4008c6a 100644
--- a/src/connection/connection.h
+++ b/src/connection/connection.h
@@ -79,6 +79,8 @@ public:
 
     void addRef();
     void release();
+    void addTabRef();
+    void releaseTab();
 
     virtual QHash<QString, QVariant> config() const;
     virtual bool applyConfig(QHash<QString, QVariant> const & config);
@@ -103,6 +105,7 @@ private:
     ConnectionState m_state;
     QString m_idString;
     int m_refcount;
+    int m_tabcount;
     bool m_removable;
 };