- try to finish answering nodes properly

src/bt_call_controller.py

@@ -22,6 +22,7 @@ CALL_ADDED = multiprocessing.Value('b', False)
 CALL_REMOVED = multiprocessing.Value('b', False)
 CALL_LOCK = threading.Lock()
 
+INTERRUPT_SIGNAL = multiprocessing.Value('b', False)
 
 # Call state change event
 class CallState(bt_phone.Observer):
@@ -94,13 +95,17 @@ def dial_number(number: str, play_file: str):
 
 # Answer the call
 def answer_call(play_file: str):
-    global CALL_PATH, CALL_LOCK, CALL_ADDED
+    global CALL_PATH, CALL_LOCK, CALL_ADDED, INTERRUPT_SIGNAL
     utils.log('Waiting for incoming call...')
 
     # Wait for incoming call
-    while not CALL_ADDED.value:
-        time.sleep(0.1)
+    while not CALL_ADDED.value and not INTERRUPT_SIGNAL.value():
+        time.sleep(0.01)
 
+    if INTERRUPT_SIGNAL.value():
+        utils.log(f'Interrupt signal detected, exiting.')
+        return
+    
     utils.log(f'Found incoming call {CALL_PATH}')
     # CALL_LOCK.release()