the endless quest to plug memory leaks -- episode 378

libs/ardour/ardour/control_protocol_manager.h

@@ -49,7 +49,8 @@ public:
 		ControlProtocolInfo() : descriptor (0), protocol (0), requested(false),
 		mandatory(false), supports_feedback(false), state (0)
 	{}
-    ~ControlProtocolInfo() { delete state; }
+		~ControlProtocolInfo();
+
 };
 
 class LIBARDOUR_API ControlProtocolManager : public PBD::Stateful, public ARDOUR::SessionHandlePtr

libs/ardour/control_protocol_manager.cc

@@ -43,6 +43,22 @@ using namespace PBD;
 ControlProtocolManager* ControlProtocolManager::_instance = 0;
 const string ControlProtocolManager::state_node_name = X_("ControlProtocols");
 
+
+ControlProtocolInfo::~ControlProtocolInfo ()
+{
+	if (protocol && descriptor) {
+		descriptor->destroy (descriptor, protocol);
+		protocol = 0;
+	}
+
+	delete state; state = 0;
+
+	if (descriptor) {
+		delete (Glib::Module*) descriptor->module;
+		descriptor = 0;
+	}
+}
+
 ControlProtocolManager::ControlProtocolManager ()
 {
 }
@@ -434,6 +450,7 @@ ControlProtocolManager::set_state (const XMLNode& node, int /*version*/)
 			ControlProtocolInfo* cpi = cpi_by_name (prop->value());
 
 			if (cpi) {
+				delete cpi->state;
 				cpi->state = new XMLNode (**citer);
 
 				if (active) {

libs/ardour/tempo.cc

@@ -3471,6 +3471,7 @@ TempoMap::set_state (const XMLNode& node, int /*version*/)
 				catch (failed_constructor& err){
 					error << _("Tempo map: could not set new state, restoring old one.") << endmsg;
 					_metrics = old_metrics;
+					old_metrics.clear();
 					break;
 				}
 
@@ -3484,6 +3485,7 @@ TempoMap::set_state (const XMLNode& node, int /*version*/)
 				catch (failed_constructor& err) {
 					error << _("Tempo map: could not set new state, restoring old one.") << endmsg;
 					_metrics = old_metrics;
+					old_metrics.clear();
 					break;
 				}
 			}
@@ -3535,6 +3537,13 @@ TempoMap::set_state (const XMLNode& node, int /*version*/)
 		}
 
 		recompute_map (_metrics);
+
+		Metrics::const_iterator d = old_metrics.begin();
+		while (d != old_metrics.end()) {
+			delete (*d);
+			++d;
+		}
+		old_metrics.clear ();
 	}
 
 	PropertyChanged (PropertyChange ());

libs/canvas/canvas/ruler.h

@@ -60,6 +60,10 @@ public:
 	Ruler (Item*, const Metric& m);
 	Ruler (Item*, const Metric& m, Rect const&);
 
+	virtual ~Ruler () {
+		delete _font_description;
+	}
+
 	void set_range (double lower, double upper);
 	void set_font_description (Pango::FontDescription);
 	void set_metric (const Metric&);

libs/canvas/ruler.cc

@@ -37,6 +37,7 @@ Ruler::Ruler (Canvas* c, const Metric& m)
 	, _lower (0)
 	, _upper (0)
 	, _divide_height (-1.0)
+	, _font_description (0)
 	, _need_marks (true)
 {
 }
@@ -47,6 +48,7 @@ Ruler::Ruler (Canvas* c, const Metric& m, Rect const& r)
 	, _lower (0)
 	, _upper (0)
 	, _divide_height (-1.0)
+	, _font_description (0)
 	, _need_marks (true)
 {
 }
@@ -57,6 +59,7 @@ Ruler::Ruler (Item* parent, const Metric& m)
 	, _lower (0)
 	, _upper (0)
 	, _divide_height (-1.0)
+	, _font_description (0)
 	, _need_marks (true)
 {
 }
@@ -67,6 +70,7 @@ Ruler::Ruler (Item* parent, const Metric& m, Rect const& r)
 	, _lower (0)
 	, _upper (0)
 	, _divide_height (-1.0)
+	, _font_description (0)
 	, _need_marks (true)
 {
 }
@@ -85,6 +89,7 @@ void
 Ruler::set_font_description (Pango::FontDescription fd)
 {
 	begin_visual_change ();
+	delete _font_description;
 	_font_description = new Pango::FontDescription (fd);
 	end_visual_change ();
 }

libs/evoral/src/ControlList.cpp

@@ -139,6 +139,7 @@ ControlList::~ControlList()
 	for (EventList::iterator x = _events.begin(); x != _events.end(); ++x) {
 		delete (*x);
 	}
+	_events.clear ();
 
 	delete _curve;
 }
@@ -178,6 +179,9 @@ ControlList::copy_events (const ControlList& other)
 {
 	{
 		Glib::Threads::RWLock::WriterLock lm (_lock);
+		for (EventList::iterator x = _events.begin(); x != _events.end(); ++x) {
+			delete (*x);
+		}
 		_events.clear ();
 		for (const_iterator i = other.begin(); i != other.end(); ++i) {
 			_events.push_back (new ControlEvent ((*i)->when, (*i)->value));
@@ -216,6 +220,9 @@ ControlList::clear ()
 {
 	{
 		Glib::Threads::RWLock::WriterLock lm (_lock);
+		for (EventList::iterator x = _events.begin(); x != _events.end(); ++x) {
+			delete (*x);
+		}
 		_events.clear ();
 		unlocked_invalidate_insert_iterator ();
 		mark_dirty ();

libs/pbd/pthread_utils.cc

@@ -146,7 +146,7 @@ pthread_set_name (const char *str)
 {
 	/* copy string and delete it when exiting */
 
-	thread_name.set (strdup (str));
+	thread_name.set (strdup (str)); // leaks
 }
 
 const char *