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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-1694) .Net: More efficient way to call native methods.
Date Wed, 11 Nov 2015 15:29:11 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-1694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15000516#comment-15000516
] 

ASF GitHub Bot commented on IGNITE-1694:
----------------------------------------

GitHub user ptupitsyn opened a pull request:

    https://github.com/apache/ignite/pull/220

    IGNITE-1694 .Net: More efficient way to call native methods.

    

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ptupitsyn/ignite ignite-1694

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/ignite/pull/220.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #220
    
----
commit 7966a36aa604adc0df0afa310856295a06e9de1c
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T13:22:57Z

    first draft

commit e4290506e38a0e47077fb6aa7af6a0744340ec5c
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T14:49:10Z

    wip

commit 5aa5fcb5767aa6118fcbdc03c0352af05955d7b7
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T15:01:30Z

    Delegates done

commit d63261a79eea6999849024e369b68cb15d35f4ab
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T15:02:34Z

    SuppressUnmanagedCodeSecurity

commit 6ad92dfe76903e4ddd62ef7d5b4e489a3dd00c7d
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T15:09:18Z

    Reformatting

commit 4348b334760fce4c7998ed098df1cda5d77ff9fd
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T15:14:21Z

    Extract to a separate class

commit 97cfccc0906ba2c2ddf40f1f0ea66de4d9baba26
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T15:15:53Z

    wip

commit 8a6f448ced8b28aafc7d543cfb215f0d8e94ba83
Author: Pavel Tupitsyn <ptupitsyn@gridgain.com>
Date:   2015-11-11T15:26:06Z

    Fix naming style

----


> .Net: More efficient way to call native methods.
> ------------------------------------------------
>
>                 Key: IGNITE-1694
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1694
>             Project: Ignite
>          Issue Type: Task
>          Components: interop
>    Affects Versions: ignite-1.4
>            Reporter: Vladimir Ozerov
>            Assignee: Pavel  Tupitsyn
>            Priority: Critical
>             Fix For: 1.6
>
>
> Currently we invoke native platform using "Marshal.GetDelegateForFunctionPointer". 
> This is the least efficient way to call external code. What can be done to improve it:
> 1) Add [SuppressUnmanagedCodeSecurity] attribute.
> 2) Use P/Invoke instead. We do not use it now because we unpack native library in runtime
into some temp folder, while PInvoke searches for libraries in predefined file system places.
Need to evaluate whether we can switch back to P/Invoke somehow.
> See http://ybeernet.blogspot.ru/2011/03/techniques-of-calling-unmanaged-code.html for
more info.



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