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https://issues.apache.org/jira/browse/MESOS-4253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marco Massenzio reassigned MESOS-4253:
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Assignee: (was: Marco Massenzio)
> Provide a minimalist "runtime context" to an Anonymous Module
> -------------------------------------------------------------
>
> Key: MESOS-4253
> URL: https://issues.apache.org/jira/browse/MESOS-4253
> Project: Mesos
> Issue Type: Improvement
> Components: modules
> Reporter: Marco Massenzio
>
> Currently, {{Anonymous}} modules only receive at creation a copy of the
> {{"parameters"}} passed in the JSON configuration file.
> However, at runtime, it would be useful to also have a "runtime context" for
> the module developer to use, when implementing the functionality.
> I would suggest to pass in the {{Flags}} object from the Master/Agent inside
> an {{setRuntimeContext(const Flags&)}}[0] method, called immediately
> post-{{create(const Parameters&)}}[1].
> Also, I would suggest adding a {{teardown()}} method too, in case the module
> needs to release resources / conduct cleanup before exiting (there is a TODO
> in the code to this effect, and adding this in this patch would be close to
> trivial).
> [0] In practice, it won't be this trivial, as Master/Agent {{Flags}} are of a
> different compile-time type - probably use something like variadic templates
> or something (suggestions appreciated!).
> [1] In fact, the ideal solution would be to add the {{const Flags&}} to
> {{create()}}, but that would, alas, break everyone's modules; so that's
> probably a no-go (ideas welcome here too).
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