Ignore timeout

qutebrowser/misc/ipc.py

@@ -168,6 +168,7 @@ class IPCServer(QObject):
         self._timer = usertypes.Timer(self, 'ipc-timeout')
         self._timer.setInterval(READ_TIMEOUT)
         self._timer.timeout.connect(self.on_timeout)
+        self._timer_start_time = None
 
         if utils.is_windows:  # pragma: no cover
             self._atime_timer = None
@@ -261,6 +262,7 @@ class IPCServer(QObject):
         log.ipc.debug("Client connected (socket {}).".format(self._socket_id))
         self._socket = socket
         self._timer.start()
+        self._timer_start_time = time.monotonic()
         socket.readyRead.connect(self.on_ready_read)
         if socket.canReadLine():
             log.ipc.debug("We can read a line immediately.")
@@ -393,11 +395,23 @@ class IPCServer(QObject):
 
         if self._socket is not None:
             self._timer.start()
+            self._timer_start_time = time.monotonic()
 
     @pyqtSlot()
     def on_timeout(self):
         """Cancel the current connection if it was idle for too long."""
         assert self._socket is not None
+        assert self._timer_start_time is not None
+        if (
+            time.monotonic() - self._timer_start_time < READ_TIMEOUT / 1000 / 10
+            and qtutils.version_check("6.7.0", exact=True, compiled=False)
+            and utils.is_windows
+        ):
+            # WORKAROUND for unknown Qt bug (?) where the timer triggers immediately
+            # https://github.com/qutebrowser/qutebrowser/issues/8191
+            log.ipc.debug("Ignoring early on_timeout call")
+            return
+
         log.ipc.error("IPC connection timed out "
                       "(socket {}).".format(self._socket_id))
         self._socket.disconnectFromServer()