Remove locale_guard.h from ardour/ardour.h header

[ardour.git] / gtk2_ardour / engine_dialog.cc

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index d81473bb25f79537e202bb0b9c631b35de9f394e..08c1901edf840aa6c5408ed709557c85be53c991 100644 (file)
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -27,6 +27,7 @@
 #include <gtkmm/messagedialog.h>
 
 #include "pbd/error.h"
+#include "pbd/locale_guard.h"
 #include "pbd/xml++.h"
 #include "pbd/unwind.h"
 #include "pbd/failed_constructor.h"
@@ -1049,9 +1050,14 @@ EngineControl::backend_changed ()
                // set driver & devices
                State state = get_matching_state (backend_combo.get_active_text());
                if (state) {
+                       DEBUG_ECONTROL ("backend-changed(): found prior state for backend");
                        PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
                        set_current_state (state);
+               } else {
+                       DEBUG_ECONTROL ("backend-changed(): no prior state for backend");
                }
+       } else {
+               DEBUG_ECONTROL (string_compose ("backend-changed(): _have_control=%1 ignore_changes=%2", _have_control, ignore_changes));
        }
 
        if (!ignore_changes) {
@@ -2055,28 +2061,13 @@ EngineControl::set_state (const XMLNode& root)
                                state->lru = lru_val;
                        }
 
-#if 1
-                       /* remove accumulated duplicates (due to bug in ealier version)
-                        * this can be removed again before release
-                        */
-                       for (StateList::iterator i = states.begin(); i != states.end();) {
-                               if ((*i)->backend == state->backend &&
-                                               (*i)->driver == state->driver &&
-                                               (*i)->device == state->device) {
-                                       i =  states.erase(i);
-                               } else {
-                                       ++i;
-                               }
-                       }
-#endif
-
                        states.push_back (state);
                }
        }
 
        /* now see if there was an active state and switch the setup to it */
 
-       // purge states of backend that are not available in this built
+       /* purge states of backend that are not available in this built */
        vector<const ARDOUR::AudioBackendInfo*> backends = ARDOUR::AudioEngine::instance()->available_backends();
        vector<std::string> backend_names;
 
@@ -2093,6 +2084,28 @@ EngineControl::set_state (const XMLNode& root)
 
        states.sort (state_sort_cmp);
 
+       /* purge old states referring to the same backend */
+       const time_t now = time (NULL);
+       for (vector<std::string>::const_iterator bi = backend_names.begin(); bi != backend_names.end(); ++bi) {
+               bool first = true;
+               for (StateList::iterator i = states.begin(); i != states.end();) {
+                       if ((*i)->backend != *bi) {
+                               ++i; continue;
+                       }
+                       // keep at latest one for every audio-system
+                       if (first) {
+                               first = false;
+                               ++i; continue;
+                       }
+                       // also keep states used in the last 90 days.
+                       if ((now - (*i)->lru) < 86400 * 90) {
+                               ++i; continue;
+                       }
+                       assert (!(*i)->active);
+                       i = states.erase(i);
+               }
+       }
+
        for (StateList::const_iterator i = states.begin(); i != states.end(); ++i) {
 
                if ((*i)->active) {