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From "Michael Park (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-8301) Support moving into defer/dispatch/install handlers.
Date Tue, 05 Dec 2017 23:10:00 GMT

    [ https://issues.apache.org/jira/browse/MESOS-8301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16279344#comment-16279344
] 

Michael Park commented on MESOS-8301:
-------------------------------------

{noformat}
commit 13eda27802cfe05800d4dcbed22c46ca7b46bafb
Author: Dmitry Zhuk <dzhuk@twopensource.com>
Date:   Tue Dec 5 10:40:37 2017 -0800

    Prepared `defer` for use in callable-once contexts.

    This changes `defer` to use `lambda::partial` instead of `std::bind`,
    which allows it be used in callable-once contexts.

    Review: https://reviews.apache.org/r/63635/
{noformat}
{noformat}
commit 0d9ce98e9df97be06144d2e29cf23a9c090a06b3
Author: Dmitry Zhuk <dzhuk@twopensource.com>
Date:   Tue Dec 5 10:39:47 2017 -0800

    Changed dispatch to use callable once functors.

    `dispatch` guarantees that functor will be called at most once, and
    therefore it allows optimizations, such as moves of deferred objects.

    Review: https://reviews.apache.org/r/63634/
{noformat}

> Support moving into defer/dispatch/install handlers.
> ----------------------------------------------------
>
>                 Key: MESOS-8301
>                 URL: https://issues.apache.org/jira/browse/MESOS-8301
>             Project: Mesos
>          Issue Type: Improvement
>          Components: libprocess
>            Reporter: Benjamin Mahler
>            Assignee: Dmitry Zhuk
>
> Currently, dispatch and defer will take copies of the provided arguments. Also, a protobuf
message handler cannot move the supplied message. We should support moves for these for efficiency.



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