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Posted to dev@mesos.apache.org by Ben Mahler <be...@gmail.com> on 2013/02/14 02:43:00 UTC

Re: Review Request: Slave Restart (Part 6): Added os::islink and substituted stat() with lstat() in os.hpp

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8681/#review16551
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third_party/libprocess/include/stout/os.hpp
<https://reviews.apache.org/r/8681/#comment35122>

    What's the justification for changing this one? I don't really have objections, but I'd like to understand the thought behind this



third_party/libprocess/include/stout/os.hpp
<https://reviews.apache.org/r/8681/#comment35123>

    Here I'm not sure what to do either.. I feel like the caller would need to know the semantics they want in terms of links.


- Ben Mahler


On Jan. 28, 2013, 4:29 a.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8681/
> -----------------------------------------------------------
> 
> (Updated Jan. 28, 2013, 4:29 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> Needed this for my next review.
> 
> 
> Diffs
> -----
> 
>   third_party/libprocess/include/stout/os.hpp fdba9cadc38251b192e9d395a0a1ab1f08327596 
> 
> Diff: https://reviews.apache.org/r/8681/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>


Re: Review Request: Slave Restart (Part 6): Added os::islink and substituted stat() with lstat() in os.hpp

Posted by Vinod Kone <vi...@gmail.com>.

> On Feb. 14, 2013, 1:43 a.m., Ben Mahler wrote:
> > third_party/libprocess/include/stout/os.hpp, line 401
> > <https://reviews.apache.org/r/8681/diff/3/?file=252338#file252338line401>
> >
> >     What's the justification for changing this one? I don't really have objections, but I'd like to understand the thought behind this

I think its intuitive when you ask "if a link exists", to answer with whether that link exists, not whether the target of the link exists.


> On Feb. 14, 2013, 1:43 a.m., Ben Mahler wrote:
> > third_party/libprocess/include/stout/os.hpp, line 413
> > <https://reviews.apache.org/r/8681/diff/3/?file=252338#file252338line413>
> >
> >     Here I'm not sure what to do either.. I feel like the caller would need to know the semantics they want in terms of links.

See my answer to Ben's question above.


- Vinod


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8681/#review16551
-----------------------------------------------------------


On Jan. 28, 2013, 4:29 a.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8681/
> -----------------------------------------------------------
> 
> (Updated Jan. 28, 2013, 4:29 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> Needed this for my next review.
> 
> 
> Diffs
> -----
> 
>   third_party/libprocess/include/stout/os.hpp fdba9cadc38251b192e9d395a0a1ab1f08327596 
> 
> Diff: https://reviews.apache.org/r/8681/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>


Re: Review Request: Slave Restart (Part 6): Added os::islink and substituted stat() with lstat() in os.hpp

Posted by Ben Mahler <be...@gmail.com>.

> On Feb. 14, 2013, 1:43 a.m., Ben Mahler wrote:
> >

Can you dig up other libraries as examples?


- Ben


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8681/#review16551
-----------------------------------------------------------


On Jan. 28, 2013, 4:29 a.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8681/
> -----------------------------------------------------------
> 
> (Updated Jan. 28, 2013, 4:29 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> Needed this for my next review.
> 
> 
> Diffs
> -----
> 
>   third_party/libprocess/include/stout/os.hpp fdba9cadc38251b192e9d395a0a1ab1f08327596 
> 
> Diff: https://reviews.apache.org/r/8681/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>


Re: Review Request: Slave Restart (Part 6): Added os::islink and substituted stat() with lstat() in os.hpp

Posted by Ben Mahler <be...@gmail.com>.

> On Feb. 14, 2013, 1:43 a.m., Ben Mahler wrote:
> > third_party/libprocess/include/stout/os.hpp, line 413
> > <https://reviews.apache.org/r/8681/diff/3/?file=252338#file252338line413>
> >
> >     Here I'm not sure what to do either.. I feel like the caller would need to know the semantics they want in terms of links.
> 
> Vinod Kone wrote:
>     See my answer to Ben's question above.

Ditto here. I think lstat is the right default, but I can see mistakes being made.


> On Feb. 14, 2013, 1:43 a.m., Ben Mahler wrote:
> > third_party/libprocess/include/stout/os.hpp, line 401
> > <https://reviews.apache.org/r/8681/diff/3/?file=252338#file252338line401>
> >
> >     What's the justification for changing this one? I don't really have objections, but I'd like to understand the thought behind this
> 
> Vinod Kone wrote:
>     I think its intuitive when you ask "if a link exists", to answer with whether that link exists, not whether the target of the link exists.

Fair enough, I think lstat is better than stat, but I could still see mistakes being made. So I don't like forcing it either way.


- Ben


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/8681/#review16551
-----------------------------------------------------------


On Jan. 28, 2013, 4:29 a.m., Vinod Kone wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/8681/
> -----------------------------------------------------------
> 
> (Updated Jan. 28, 2013, 4:29 a.m.)
> 
> 
> Review request for mesos, Benjamin Hindman and Ben Mahler.
> 
> 
> Description
> -------
> 
> Needed this for my next review.
> 
> 
> Diffs
> -----
> 
>   third_party/libprocess/include/stout/os.hpp fdba9cadc38251b192e9d395a0a1ab1f08327596 
> 
> Diff: https://reviews.apache.org/r/8681/diff/
> 
> 
> Testing
> -------
> 
> make check
> 
> 
> Thanks,
> 
> Vinod Kone
> 
>