[jira] [Assigned] (MESOS-952) Clock::resume should adjust timeouts that were created in a paused/advanced Clock context.

["Benjamin Mahler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benjamin Mahler reassigned MESOS-952:
-------------------------------------

    Assignee: Benjamin Mahler

> Clock::resume should adjust timeouts that were created in a paused/advanced Clock context.
> ------------------------------------------------------------------------------------------
>
>                 Key: MESOS-952
>                 URL: https://issues.apache.org/jira/browse/MESOS-952
>             Project: Mesos
>          Issue Type: Bug
>            Reporter: Benjamin Mahler
>            Assignee: Benjamin Mahler
>
> When timeouts are created while the Clock is paused and advanced into the future, these must be adjusted once we resume the Clock.
> For example:
> Process A {
>   initialize() { loop(); }
>   loop() { delay(Seconds(1), loop); }
> }
> // T = 0
> Clock::pause();
> Clock::advance(Seconds(1)); // T = 1
> Clock::settle(); // The loop timeout will be expired, loop() is called.
> // loop is scheduled for T = 2
> Clock::advance(Seconds(1)); // T = 2
> Clock::settle(); // The loop timeout will be expired, loop() is called.
> // loop is scheduled for T = 3
> Clock::resume(); // T = 0 once again (assume ~ no real time has elapsed)
> // Now loop will not be called for 3 seconds, until T = 3.
> // Instead, we expect loop to be called at T = 1.
> The semantics here can be quite tricky so please let me know if I'm missing something. It seems we should be adjusting the timers when resuming an advanced clock. 



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