Added error checking for alsa read errors

birbnetes_iot_platform_raspberry/record_stuff.py

@@ -1,3 +1,4 @@
+import logging
 from typing import Optional, Tuple
 import alsaaudio
 import tempfile
@@ -44,10 +45,24 @@ class SlicedRecorder(Thread):
         current_working_file_name, current_working_file = self._request_new_file()
         current_samples_saved = 0
 
+        read_failures = 0
+
         while self._active:
-            length, data = self._inp.read()
+            try:
+                length, data = self._inp.read()
+            except alsaaudio.ALSAAudioError as e:
+                logging.exception(e)
+
+                read_failures += 1
+                if read_failures >= 30:
+                    logging.error("Too many ALSA Read errors. Bailing out...")
+                    self._active = False
+                    return
+
+                continue
 
             if length > 0:  # will be always larger than zero (except on error)
+                read_failures = 0
                 file_size_after_append = current_samples_saved + length
 
                 if file_size_after_append > self._samples_per_slice:  # Appending this would cause a too big slice