Prefer atomic dec_and_test (instead of atomic get+set)

2022-06-14 18:19:52 +02:00
parent 2e2a4be3b2
commit b95bb0bdac
1 changed files with 1 additions and 3 deletions
--- a/libs/ardour/presentation_info.cc
+++ b/libs/ardour/presentation_info.cc
@@ -71,7 +71,7 @@ PresentationInfo::unsuspend_change_signal ()
 {
 	Glib::Threads::Mutex::Lock lm (static_signal_lock);

-	if (g_atomic_int_get (&_change_signal_suspended) == 1) {
+	if (g_atomic_int_dec_and_test (&_change_signal_suspended)) {

 		/* atomically grab currently pending flags */

@@ -92,8 +92,6 @@ PresentationInfo::unsuspend_change_signal ()
 			lm.acquire ();
 		}
 	}
-
-	g_atomic_int_add (&_change_signal_suspended, -1);
 }

 void