Github user jburwell commented on a diff in the pull request:
https://github.com/apache/cloudstack/pull/1454#discussion_r58965445
--- Diff: tools/marvin/marvin/lib/utils.py ---
@@ -520,4 +520,22 @@ def verifyRouterState(apiclient, routerid,
allowedstates):
if routers[0].state.lower() not in allowedstates:
return [FAIL, "state of the router should be in %s but is %s" %
(allowedstates, routers[0].state)]
- return [PASS, None]
\ No newline at end of file
+ return [PASS, None]
+
+
+
+def wait_until(retry_interval=2, no_of_times=2, callback=None,
*callback_args):
+ """ Utility method to try out the callback method at most no_of_times
with a interval of retry_interval,
+ Will return immediately if callback returns True. The callback method
should be written to return a list of values first being a boolean """
+
+ if callback is None:
+ return INVALID_INPUT
+ success = False
+ for i in range(0,no_of_times):
+ time.sleep(retry_interval)
+ success = callback(*callback_args)
+ if success[0]:
+ break
+
+ return success
--- End diff --
Consider a multi-return -- allowing callers to unambiguously determine
success/failure vs the results of the method
```
return (success, result)
```
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