use new syntax for connecting to backend signals that enforces explicit connection scope, plus a few other related matters

git-svn-id: svn://localhost/ardour2/branches/3.0@6376 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 2 insertions, 6 deletions

diff --git a/libs/ardour/ardour/meter.h b/libs/ardour/ardour/meter.h
index 1f5e3307d6..2a283c0c64 100644
--- a/libs/ardour/ardour/meter.h
+++ b/libs/ardour/ardour/meter.h
@@ -22,6 +22,7 @@
 #include <vector>
 #include "ardour/types.h"
 #include "ardour/processor.h"
+#include "pbd/signals.h"
 #include "pbd/fastlog.h"
 
 namespace ARDOUR {
@@ -33,16 +34,11 @@ class Session;
 class Metering {
   public:
 	static void               update_meters ();
-	static boost::signals2::signal<void()> Meter;
-
-	static boost::signals2::connection connect (boost::function<void()>);
-	static void                        disconnect (boost::signals2::connection& c);
+	static PBD::Signal0<void> Meter;
 
   private:
 	/* this object is not meant to be instantiated */
 	Metering();
-
-	static Glib::StaticMutex    m_meter_signal_lock;
 };
 
 /** Meters peaks on the input and stores them for access.