added uninstallSubscription () func

src/ca/nciu.cpp

@@ -364,6 +364,13 @@ int nciu::subscriptionMsg ( netSubscription &subscr, bool userThread  )
     return status;
 }
 
+void nciu::unistallSubscription ( netSubscription &subscr )
+{
+    if ( this->f_connected ) {
+        this->piiu->unistallSubscription ( *this, subscr );
+    }
+}
+
 void nciu::incrementOutstandingIO ()
 {
     this->cacCtx.incrementOutstandingIO ();

src/ca/netiiu.cpp

@@ -200,6 +200,10 @@ int netiiu::subscriptionCancelRequest ( netSubscription & )
     return ECA_DISCONNCHID;
 }
 
+void netiiu::unistallSubscription ( nciu &, netSubscription & )
+{
+}
+
 void netiiu::hostName ( char *pBuf, unsigned bufLength ) const
 {
     if ( bufLength ) {