mesos / mesos-go / 842

59%

master: 60%

Pull #370

travis-ci

httpsched: reduce blocking of calls.Caller impl

* SUBSCRIBE calls may be long-blocking if the Mesos master is slow to
  respond. when the caller is in a *disconnected* state, a blocking
  SUBSCRIBE call should result in an immediate error state for
  concurrent, non-SUBSCRIBE calls that are issued until the subscription
  is established. SUBSCRIBE calls automatically transition the caller
  into a disconnected state if "AllowReconnect" is enabled.

* non-SUBSCRIBE calls should not block, in general; if the number of
  concurrent calls exceeds some (predefined) threshold, then the caller
  will block.

259 of 259 new or added lines in 4 files covered. (100.0%)

3362 of 5786 relevant lines covered (58.11%)

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