haosdent created MESOS-5038:
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             Summary: Added a any mechanism for futures.
                 Key: MESOS-5038
                 URL: https://issues.apache.org/jira/browse/MESOS-5038
             Project: Mesos
          Issue Type: Improvement
          Components: libprocess
            Reporter: haosdent
            Assignee: haosdent


Now we already have {{collect}} and {{await}} mechanisms which would wait for a 
list of {{Future}}. However, we would like to return immediately if any of the 
list of {{Future}} complete instead of wait for the whole list finished in 
{{collect}}. The interface of this any mechanism could be

{code}
template <typename T>
Future<T> any(const std::list<Future<T>>& futures);
{code}




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