- def pg_start(cls, sleep_time=1):
- """
- Enable the packet-generator and send all prepared packet streams
- Remove the packet streams afterwards
- """
+ def register_capture(cls, cap_name):
+ """ Register a capture in the testclass """
+ # add to the list of captures with current timestamp
+ cls._captures.append((time.time(), cap_name))
+ # filter out from zombies
+ cls._zombie_captures = [(stamp, name)
+ for (stamp, name) in cls._zombie_captures
+ if name != cap_name]
+
+ @classmethod
+ def pg_start(cls):
+ """ Remove any zombie captures and enable the packet generator """
+ # how long before capture is allowed to be deleted - otherwise vpp
+ # crashes - 100ms seems enough (this shouldn't be needed at all)
+ capture_ttl = 0.1
+ now = time.time()
+ for stamp, cap_name in cls._zombie_captures:
+ wait = stamp + capture_ttl - now
+ if wait > 0:
+ cls.logger.debug("Waiting for %ss before deleting capture %s",
+ wait, cap_name)
+ time.sleep(wait)
+ now = time.time()
+ cls.logger.debug("Removing zombie capture %s" % cap_name)
+ cls.vapi.cli('packet-generator delete %s' % cap_name)
+