Refactor radar system

python_app/hardware_full/kamil_adc/tty_reader.py

@@ -74,7 +74,13 @@ class KamilAdcTtyReader:
             name=f"kamil-adc-tty-reader[{self.tty_path}]",
             daemon=True,
         )
-        self._thread.start()
+        try:
+            self._thread.start()
+        except Exception:
+            self._thread = None
+            fd, self._fd = self._fd, None
+            os.close(fd)
+            raise
         logger.info("Kamil ADC TTY reader started on %s", self.tty_path)
 
     def close(self) -> None:
@@ -120,6 +126,8 @@ class KamilAdcTtyReader:
         deadline = time.monotonic() + float(timeout_s)
         with self._mailbox_cv:
             while True:
+                if self._stop_event.is_set():
+                    raise RuntimeError("Kamil ADC TTY reader is closed")
                 # Deliver a pending sweep first: if the reader both published a
                 # sweep and then died, the consumer still sees the good data and
                 # only meets the error on the next call.
@@ -156,6 +164,8 @@ class KamilAdcTtyReader:
         deadline = time.monotonic() + float(timeout_s)
         with self._mailbox_cv:
             while True:
+                if self._stop_event.is_set():
+                    raise RuntimeError("Kamil ADC TTY reader is closed")
                 sweep = self._combo_slots.pop(combo, None)
                 if sweep is not None:
                     return sweep