discussion related to implementation of File descriptor functions in RTEMS

[Joel Sherrill]

On Wed, Mar 25, 2020 at 12:17 AM Eshan Dhawan <eshandhawan51 at gmail.com>
wrote:

>
>
> On Wed, Mar 25, 2020 at 4:01 AM Joel Sherrill <joel at rtems.org> wrote:
>
>>
>>
>> On Tue, Mar 24, 2020 at 4:57 PM Eshan Dhawan <eshandhawan51 at gmail.com>
>> wrote:
>>
>>> Hello everyone,
>>> As @Vaibhav Gupta <vaibhav.varodek at gmail.com> suggested I have also
>>> added adding file descriptor functions to my GSOC project.
>>> I went through the mailing list archives for more information.
>>> RTEMS as its own file descriptor so the functions need to be implemented
>>> from scratch.
>>> I wanted to get more information related to it.
>>>
>>
>> What's the set of functions you are proposing for those not tracking your
>> draft proposal?
>>
> Link:
> https://docs.google.com/document/d/1n-JOFUbFn6V1kViAGWsEGbVHL9MxlMyKP0BbZhEA1Rs/edit?usp=sharing
> I haven't searched about the functions in the list yet. The list was made
> by Vaibhav, last year and he told me that it could be added to proposal
> this year as well.
> I read the archives that these need to be written from scratch.
>


Maybe not. I found at least this implementation of renameat() which was
implemented on top of existing calls:

https://github.com/lattera/freebsd/blob/master/contrib/openbsm/bin/auditdistd/renameat.h

It should be in a C file but that shows it can be done. That directory has
a lot of these methods.

NOTE: That list has fstat() while I am sure it should be fstatat.

I would move these up the list since they look easy to port from that
source. Convert them from .h to .c, and we can discuss adding them to
newlib.

--joel

>
>
>>> thanks
>>> -Eshan
>>>
>>
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