pymavlink: reduced CPU usage on failed reads looping

DevAMig · Mar 24, 2014 · 2bf2f4e · 2bf2f4e
1 parent c1f6c2f
commit 2bf2f4e
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/pymavlink/mavutil.py b/pymavlink/mavutil.py
@@ -687,7 +687,10 @@ def recv(self,n=None):
             waiting = self.port.inWaiting()
             if waiting < n:
                 n = waiting
-        return self.port.read(n)
+        ret = self.port.read(n)
+        if len(ret) == 0:
+            time.sleep(0.1)
+        return ret
 
     def write(self, buf):
         try: