Only update interests if they have changed.

socketry · Feb 2, 2018 · f9a856e · f9a856e
1 parent 62e6973
commit f9a856e
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/ext/nio4r/monitor.c b/ext/nio4r/monitor.c
@@ -296,9 +296,11 @@ static void NIO_Monitor_update_interests(VALUE self, int interests)
         rb_ivar_set(self, rb_intern("interests"), Qnil);
     }
 
-    monitor->interests = interests;
+    if(monitor->interests != interests) {
+        monitor->interests = interests;
 
-    ev_io_stop(monitor->selector->ev_loop, &monitor->ev_io);
-    ev_io_set(&monitor->ev_io, monitor->ev_io.fd, monitor->interests);
-    ev_io_start(monitor->selector->ev_loop, &monitor->ev_io);
+        ev_io_stop(monitor->selector->ev_loop, &monitor->ev_io);
+        ev_io_set(&monitor->ev_io, monitor->ev_io.fd, monitor->interests);
+        ev_io_start(monitor->selector->ev_loop, &monitor->ev_io);
+    }
 }