ThreadBasedCyclicSendTask using WIN32 API cannot handle period smalle…

…r than 1 ms (#1847) Using a win32 SetWaitableTimer with a period of `0` means that the timer will only be signaled once. This will make the `ThreadBasedCyclicSendTask` to only send one message.
hardbyte · Aug 29, 2024 · c712131 · c712131
1 parent e291874
commit c712131
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/can/broadcastmanager.py b/can/broadcastmanager.py
@@ -308,6 +308,9 @@ def __init__(
 
         self.event: Optional[_Pywin32Event] = None
         if PYWIN32:
+            if self.period_ms == 0:
+                # A period of 0 would mean that the timer is signaled only once
+                raise ValueError("The period cannot be smaller than 0.001 (1 ms)")
             self.event = PYWIN32.create_timer()
         elif (
             sys.platform == "win32"