notify only on change

2025-12-12 09:10:30 +08:00 · 2020-09-14 21:51:53 +03:00 · 2020-09-14 21:51:53 +03:00 · 6ef53e48c5
commit 6ef53e48c5
parent 50d0612f82
1 changed files with 6 additions and 2 deletions
--- a/kvmd/aiogp.py
+++ b/kvmd/aiogp.py
@ -102,12 +102,16 @@ class AioPinsReader:  # pylint: disable=too-many-instance-attributes
            while not self.__stop_event.is_set():
                ev_lines = lines.event_wait(1)
                if ev_lines:
+                    changed = False
                    for ev_line in ev_lines:
                        events = ev_line.event_read_multiply()
                        if events:
                            (pin, value) = self.__parse_event(events[-1])
-                            self.__state[pin] = value
-                    self.__notify()
+                            if self.__state[pin] != value:
+                                self.__state[pin] = value
+                                changed = True
+                    if changed:
+                        self.__notify()

    def __parse_event(self, event: gpiod.LineEvent) -> Tuple[int, bool]:
        pin = event.source.offset()