[lttng-dev] GSoC 2013 proposal - Babeltrace python bindings

[Jérémie Galarneau]

Hi Xuan,

There is no public API list that I know of. You'll want to have a look at
the public headers in the include/babeltrace folder. There is also an
official Babeltrace API documentation in doc/API.txt that provides a
high-level description of the interface and the terminology used.

Jérémie



On Wed, Apr 10, 2013 at 1:23 AM, Xuan Hu <huxuan8218528 at gmail.com> wrote:

> Hi, jgalar.
>
> Thx for your detailed clarification. I will begin with looking throuth the
> CTF specification and investigation with the code of bing/python branch.
> I have one little question, where can I find the list of libbabeltrace's
> public API? And I also failed to find documents tends for developments and
> contributors. I think these would be helpful for me to get fimiliar with
> our projects. :-)
>
> Wish for your reply.
>
>
> On Wed, Apr 10, 2013 at 3:37 AM, Jérémie Galarneau <
> jeremie.galarneau at efficios.com> wrote:
>
>> Hi Xuan,
>>
>> First, thanks for reaching out!
>>
>> Basically, the Babeltrace Python bindings project aims at providing
>> Python developers with a library to read the trace formats supported by
>> Babeltrace. I'll take the chance to detail what we had in mind with this
>> project.
>>
>> The first part consists of producing Python bindings to libbabeltrace's
>> public API. This has already been done last summer but is not yet part of
>> the master branch. It currently lives in the "bindings/python" branch of
>> Babeltrace's repository[1]. However, it is not completely up-to-date and
>> lacks thorough testing.
>>
>> The second part, which is more of an interface design exercise, is
>> exposing the trace data read by libbabeltrace in a "Pythonic" way. That
>> includes implementing Python's generator-iterator interface, expressing the
>> trace metadata using Python's data structures, etc. libbabeltrace can also
>> be used as a trace writer so the Python interface should expose this
>> functionality by providing a symmetric output interface. All in all, it
>> calls for a lot more design work than actual implementation.
>>
>> For starters, you may want to have a look at the CTF specification[2],
>> which is currently the only trace format supported by Babeltrace, to give
>> you an idea of the challenges at hand. Trying out the complete LTTng
>> toolchain will also give you a better view of this project.
>>
>> [1]
>> https://bugs.lttng.org/projects/babeltrace/repository/show?rev=bindings%2Fpython
>> [2]
>> http://git.efficios.com/?p=ctf.git;a=blob_plain;f=common-trace-format-specification.txt;hb=master
>>
>> Don't hesitate to come forward and propose a tentative API or ask for
>> clarifications.
>>
>> Regards,
>> Jérémie
>>
>> On Tue, Apr 9, 2013 at 5:38 AM, Xuan Hu <huxuan8218528 at gmail.com> wrote:
>>
>>> Hello everyone,
>>>
>>> I'm really interested in the project of `Babeltrace python bindings`.
>>> Besides I'm confident with my python skill and I'm willing to study more
>>> skills related. As far as I know, I think this is a somewhat standalone
>>> project which should create a module for python programmers to get the
>>> results which babeltrace produce. Wish potential mentor (jgalar) can judge
>>> whether it is or not. Besides I wonder to know any suggestions for me to
>>> begin with this project?
>>>
>>> --
>>> 扈煊 Sean.Hu
>>>
>>> 北京大学信息科学技术学院2012级硕士研究生
>>> 2012, Master Degree Candidate, EECS, PKU
>>>
>>> Blog <http://huxuan.org/> | GitHproposeub <https://github.com/huxuan/>|
>>> Twitter <https://twitter.com/huxuan/> | Douban<http://www.douban.com/people/huxuan/>|
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>>> Weibo <http://weibo.com/victorhu>
>>>
>>> _______________________________________________
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>>> lttng-dev at lists.lttng.org
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>>>
>>>
>>
>>
>> --
>> Jérémie Galarneau
>> EfficiOS Inc.
>> http://www.efficios.com
>>
>
>
>
> --
> 扈煊 Sean.Hu
>
> 北京大学信息科学技术学院2012级硕士研究生
> 2012, Master Degree Candidate, EECS, PKU
>
> Blog <http://huxuan.org/> | GitHub <https://github.com/huxuan/> | Twitter<https://twitter.com/huxuan/>|
> Douban <http://www.douban.com/people/huxuan/> | Google+<https://plus.google.com/u/0/116930918200210859389>|
> Jiepang <http://jiepang.com/huxuan/> | Weibo <http://weibo.com/victorhu>
>



-- 
Jérémie Galarneau
EfficiOS Inc.
http://www.efficios.com
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