commits 6001-6525 inclusive from 2.X applied to 3.0

git-svn-id: svn://localhost/ardour2/branches/3.0@6942 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 18 insertions, 0 deletions

diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index 90e5809890..7f316c953a 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -2304,6 +2304,24 @@ Session::get_routes_with_internal_returns() const
 	return rl;
 }
 
+bool
+Session::io_name_is_legal (const std::string& name)
+{
+        shared_ptr<RouteList> r = routes.reader ();
+        
+        for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
+                if ((*i)->name() == name) {
+                        return false;
+                }
+                
+                if ((*i)->has_io_processor_named (name)) {
+                        return false;
+                }
+        }
+        
+        return true;
+}
+
 shared_ptr<Route>
 Session::route_by_name (string name)
 {