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Posted to dev@mesos.apache.org by Jie Yu <yu...@gmail.com> on 2014/08/14 02:02:19 UTC

Review Request 24679: Added os::execvpe to stout.

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/24679/
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Review request for mesos, Benjamin Hindman and Ben Mahler.


Repository: mesos-git


Description
-------

The idea here is to use the 'p' (search PATH) version consistently in the code base.

Mac does not have os::execvpe defined, so I end up implementing it per this thread:
http://stackoverflow.com/questions/7789750/execve-with-path-search


Diffs
-----

  3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp 4d671869754ba7d83ca86d76eacdbb67c7828ee7 

Diff: https://reviews.apache.org/r/24679/diff/


Testing
-------

make check


Thanks,

Jie Yu


Re: Review Request 24679: Added os::execvpe to stout.

Posted by Jie Yu <yu...@gmail.com>.

> On Aug. 14, 2014, 3:42 a.m., Ben Mahler wrote:
> > Thanks! Looks like the s/rc/result/ change was missed?

whoops.. will fix that!


- Jie


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https://reviews.apache.org/r/24679/#review50545
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On Aug. 14, 2014, 2:39 a.m., Jie Yu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/24679/
> -----------------------------------------------------------
> 
> (Updated Aug. 14, 2014, 2:39 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> The idea here is to use the 'p' (search PATH) version consistently in the code base.
> 
> Mac does not have os::execvpe defined, so I end up implementing it per this thread:
> http://stackoverflow.com/questions/7789750/execve-with-path-search
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp 4d67186 
> 
> Diff: https://reviews.apache.org/r/24679/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Jie Yu
> 
>


Re: Review Request 24679: Added os::execvpe to stout.

Posted by Ben Mahler <be...@gmail.com>.
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/24679/#review50545
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Ship it!


Thanks! Looks like the s/rc/result/ change was missed?

- Ben Mahler


On Aug. 14, 2014, 2:39 a.m., Jie Yu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/24679/
> -----------------------------------------------------------
> 
> (Updated Aug. 14, 2014, 2:39 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> The idea here is to use the 'p' (search PATH) version consistently in the code base.
> 
> Mac does not have os::execvpe defined, so I end up implementing it per this thread:
> http://stackoverflow.com/questions/7789750/execve-with-path-search
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp 4d67186 
> 
> Diff: https://reviews.apache.org/r/24679/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Jie Yu
> 
>


Re: Review Request 24679: Added os::execvpe to stout.

Posted by Jie Yu <yu...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/24679/
-----------------------------------------------------------

(Updated Aug. 14, 2014, 2:39 a.m.)


Review request for mesos, Benjamin Hindman and Ben Mahler.


Changes
-------

BenM's comments.


Repository: mesos-git


Description
-------

The idea here is to use the 'p' (search PATH) version consistently in the code base.

Mac does not have os::execvpe defined, so I end up implementing it per this thread:
http://stackoverflow.com/questions/7789750/execve-with-path-search


Diffs (updated)
-----

  3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp 4d67186 

Diff: https://reviews.apache.org/r/24679/diff/


Testing
-------

make check


Thanks,

Jie Yu


Re: Review Request 24679: Added os::execvpe to stout.

Posted by Jie Yu <yu...@gmail.com>.

> On Aug. 14, 2014, 1:06 a.m., Ben Mahler wrote:
> > 3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp, lines 596-604
> > <https://reviews.apache.org/r/24679/diff/1/?file=659693#file659693line596>
> >
> >     This comment is great, I wonder if we can get away with just saying that this is a _portable_ version of execvpe (which does not exist on all systems)? Up to you.

Done.


> On Aug. 14, 2014, 1:06 a.m., Ben Mahler wrote:
> > 3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp, lines 607-618
> > <https://reviews.apache.org/r/24679/diff/1/?file=659693#file659693line607>
> >
> >     I think your code is self-explanatory, and will be even more so with os::environp(), feel free to remove these code comments if you like :)
> >     
> >     s/ **/** /
> >     s/rc/result/

Done.


- Jie


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/24679/#review50534
-----------------------------------------------------------


On Aug. 14, 2014, 12:02 a.m., Jie Yu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/24679/
> -----------------------------------------------------------
> 
> (Updated Aug. 14, 2014, 12:02 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> The idea here is to use the 'p' (search PATH) version consistently in the code base.
> 
> Mac does not have os::execvpe defined, so I end up implementing it per this thread:
> http://stackoverflow.com/questions/7789750/execve-with-path-search
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp 4d671869754ba7d83ca86d76eacdbb67c7828ee7 
> 
> Diff: https://reviews.apache.org/r/24679/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Jie Yu
> 
>


Re: Review Request 24679: Added os::execvpe to stout.

Posted by Ben Mahler <be...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/24679/#review50534
-----------------------------------------------------------


As per your suggestion, exposing an os::environp() sounds good to me.


3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp
<https://reviews.apache.org/r/24679/#comment88397>

    This seems a bit tricky since the caller needs to be aware of the fact that the 'environ' memory can be swapped without a leak occurring?
    
    Per your suggestion in our conversation, seems safer to expose a portable 'os::environp()'. Less prone to mistakes :)



3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp
<https://reviews.apache.org/r/24679/#comment88398>

    This comment is great, I wonder if we can get away with just saying that this is a _portable_ version of execvpe (which does not exist on all systems)? Up to you.



3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp
<https://reviews.apache.org/r/24679/#comment88399>

    I think your code is self-explanatory, and will be even more so with os::environp(), feel free to remove these code comments if you like :)
    
    s/ **/** /
    s/rc/result/


- Ben Mahler


On Aug. 14, 2014, 12:02 a.m., Jie Yu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/24679/
> -----------------------------------------------------------
> 
> (Updated Aug. 14, 2014, 12:02 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> The idea here is to use the 'p' (search PATH) version consistently in the code base.
> 
> Mac does not have os::execvpe defined, so I end up implementing it per this thread:
> http://stackoverflow.com/questions/7789750/execve-with-path-search
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/3rdparty/stout/include/stout/os.hpp 4d671869754ba7d83ca86d76eacdbb67c7828ee7 
> 
> Diff: https://reviews.apache.org/r/24679/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Jie Yu
> 
>