rework design of midi clock ticker to avoid expensive generalization that has turned...

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

diff --git a/libs/ardour/graph.cc b/libs/ardour/graph.cc
index 03ba4d969aeafd2fb521dae8a0c899718d08b100..c38106506edc8f21146d839a2313f92686aea00d 100644 (file)
--- a/libs/ardour/graph.cc
+++ b/libs/ardour/graph.cc
@@ -77,28 +77,21 @@ Graph::Graph (Session & session)
 
         reset_thread_list ();
 
-        Config->ParameterChanged.connect_same_thread (processor_usage_connection, boost::bind (&Graph::parameter_changed, this, _1));
-
 #ifdef DEBUG_RT_ALLOC
        graph = this;
        pbd_alloc_allowed = &::alloc_allowed;
 #endif
 }
 
-void
-Graph::parameter_changed (std::string param)
-{
-        if (param == X_("processor-usage")) {
-                reset_thread_list ();
-        }
-}
-
 /** Set up threads for running the graph */
 void
 Graph::reset_thread_list ()
 {
         uint32_t num_threads = how_many_dsp_threads ();
 
+       /* For now, we shouldn't be using the graph code if we only have 1 DSP thread */
+       assert (num_threads > 1);
+
         /* don't bother doing anything here if we already have the right
            number of threads.
         */
@@ -114,16 +107,6 @@ Graph::reset_thread_list ()
                 drop_threads ();
         }
 
-#if 0
-        /* XXX this only makes sense when we can use just the AudioEngine thread
-           and still keep the graph current with the route list
-        */
-        if (num_threads <= 1) {
-                /* no point creating 1 thread - the AudioEngine already gives us one
-                 */
-                return;
-        }
-#endif
        if (AudioEngine::instance()->create_process_thread (boost::bind (&Graph::main_thread, this), &a_thread, 100000) == 0) {
                _thread_list.push_back (a_thread);
        }
@@ -597,10 +580,10 @@ Graph::process_one_route (Route* route)
 bool
 Graph::in_process_thread () const
 {
-       list<pthread_t>::const_iterator i = _thread_list.begin ();
-       while (i != _thread_list.end() && *i != pthread_self ()) {
-               ++i;
+       for (list<pthread_t>::const_iterator i = _thread_list.begin (); i != _thread_list.end(); ++i) {
+               if (*i == pthread_self()) {
+                       return true;
+               }
        }
-
-       return i != _thread_list.end ();
+       return false;
 }