[Re]-Implement Delayline flush.

[ardour.git] / libs / ardour / slavable.cc

diff --git a/libs/ardour/slavable.cc b/libs/ardour/slavable.cc
index 7d8109eac62ee1e3f454d79df7369f7aa3207592..155fd4f736b3e316cfcd25dc20ed0342b5195d1e 100644 (file)
--- a/libs/ardour/slavable.cc
+++ b/libs/ardour/slavable.cc
@@ -60,6 +60,32 @@ Slavable::get_state () const
        return *node;
 }
 
+std::vector<boost::shared_ptr<VCA> >
+Slavable::masters (VCAManager* manager) const
+{
+       std::vector<boost::shared_ptr<VCA> > rv;
+       Glib::Threads::RWLock::ReaderLock lm (master_lock);
+       for (std::set<uint32_t>::const_iterator i = _masters.begin(); i != _masters.end(); ++i) {
+               rv.push_back (manager->vca_by_number (*i));
+       }
+       return rv;
+}
+
+bool
+Slavable::assigned_to (VCAManager* manager, boost::shared_ptr<VCA> mst) const
+{
+       if (mst.get () == this) {
+               return true;
+       }
+       std::vector<boost::shared_ptr<VCA> > ml = mst->masters (manager);
+       for (std::vector<boost::shared_ptr<VCA> >::const_iterator i = ml.begin (); i != ml.end(); ++i) {
+               if (assigned_to (manager, *i)) {
+                       return true;
+               }
+       }
+       return false;
+}
+
 int
 Slavable::set_state (XMLNode const& node, int version)
 {