Re: [boost] [thread] API for getting/setting thread name in Boost?

Subject: Re: [boost] [thread] API for getting/setting thread name in Boost?
From: Bob Summerwill (bob_at_[hidden])
Date: 2016-05-09 19:57:01

Issue logged as https://github.com/boostorg/thread/issues/84.   Thanks!

On Mon, May 9, 2016 at 4:50 PM, Bob Summerwill <bob_at_[hidden]> wrote:

>
> My language wasn't quite precise enough!
>
> I don't believe there is a single implementation which will work on all
> POSIX-compliant systems, but it looks like we're close enough to de-facto
> standardization that we can get something which will work on all the major
> platforms.
>
> It's essentially looking at:
>
>
> http://stackoverflow.com/questions/2369738/can-i-set-the-name-of-a-thread-in-pthreads-linux/7989973#7989973
>
> Which gives you code something like this:
>
>
> https://github.com/ethereum/libweb3core/blob/develop/libdevcore/Log.cpp#L176
>
> And the Windows equivalent:
>
>
> http://stackoverflow.com/questions/905876/how-to-set-name-to-a-win32-thread
>
>
> Thanks, Vincente for setting up the Github issue tracker, and for your
> reply.    I will log an issue there now.
>
>
> Cheers,
> Bob
>
>
> On Sun, May 8, 2016 at 5:34 AM, Vicente J. Botet Escriba <
> vicente.botet_at_[hidden]> wrote:
>
>> Le 06/05/2016 à 21:05, Bob Summerwill a écrit :
>>
>>> My apologies for the cut-and-paste here.   I had "digest enabled".
>>>
>>> Vicente >> I remember this thread
>>> Vicente >> Unfortunately not. Nobody provided a patch.
>>>
>>>
>>> OK - well maybe I need to put that on my backlog.    It just one
>>> code-path
>>> for Windows and another for POSIX.   Just a few lines of code for each.
>>>
>> I don't know of a portable POSIX solution. Do you?
>>
>>>
>>> Vicente >> You can add a Feature request on Trac system or create an
>>> issue
>>> on
>>> Vicente >> Github, but I don't believe I will work on that if there is no
>>> portable
>>> Vicente >> solution.
>>>
>>> So I couldn't find an active issue tracker on the repos in Github.
>>>
>> Oh, I believed there were one. I will request to the administrators to
>> see what can be done.
>>
>>> I
>>> tried to create a Trac issue, but it rejected my ticket for having
>>> external
>>> links (yep, there are a lot).
>>>
>> Yes Trac don't support links :(.
>>
>>> Maybe it will be nicer to me if I had a SVN
>>> account.   I do not.
>>>
>> You don't need an svn account.
>>
>>> Is trac the primary issue-tracker?
>>>
>>> Yes. We want to move to github however.
>>
>> Vicente
>>
>>
>>> On Wed, May 4, 2016 at 10:25 AM, Bob Summerwill <bob_at_[hidden]>
>>> wrote:
>>>
>>> I've also been working with an external developer which is getting
>>>> Ethereum C++ working on Alpine Linux, as a statically linked executable
>>>> using musl, rather than glibc.
>>>>
>>>> One rather confusing element was related to setting and getting thread
>>>> names, which is the process of working through this issue, I find
>>>> appears
>>>> not to have made its way into either Boost or the C++11 standard
>>>> library,
>>>> though it must be a very common cross-platform use-case.
>>>>
>>>> https://github.com/ethereum/libweb3core/pull/73
>>>> https://github.com/ethereum/libweb3core/pull/73/files
>>>>
>>>> I've just added this comment-block, while fixing the issue:
>>>>
>>>> /// Set the current thread's log name.
>>>> ///
>>>> /// It appears that there is not currently any cross-platform way of
>>>> setting
>>>> /// thread names either in Boost or in the C++11 runtime libraries.
>>>>  What is
>>>> /// more, the API for 'pthread_setname_np' is not even consistent across
>>>> /// platforms which implement it.
>>>> ///
>>>> /// A proposal to add such functionality on the Boost mailing list,
>>>> which
>>>> /// I assume never happened, but which I should follow-up and ask about.
>>>> ///
>>>> http://boost.2283326.n4.nabble.com/Adding-an-option-to-set-the-name-of-a-boost-thread-td4638283.html
>>>> ///
>>>> /// man page for 'pthread_setname_np', including this crucial snippet of
>>>> /// information ... "These functions are nonstandard GNU extensions."
>>>> /// http://man7.org/linux/man-pages/man3/pthread_setname_np.3.html
>>>> ///
>>>> /// Stack Overflow "Can I set the name of a thread in pthreads / linux?"
>>>> /// which includes useful information on the minor API differences
>>>> between
>>>> /// Linux, BSD and OS X.
>>>> ///
>>>> http://stackoverflow.com/questions/2369738/can-i-set-the-name-of-a-thread-in-pthreads-linux/7989973#7989973
>>>> ///
>>>> /// musl mailng list posting "pthread set name on MIPs" which includes
>>>> the
>>>> /// information that musl doesn't currently implement
>>>> 'pthread_setname_np'
>>>> /// https://marc.info/?l=musl&m=146171729013062&w=1
>>>> void setThreadName(std::string const& _n);
>>>>
>>>>
>>>>
>>>> Would I be right in assuming that this never happened?
>>>>
>>>>
>>>> http://boost.2283326.n4.nabble.com/Adding-an-option-to-set-the-name-of-a-boost-thread-td4638283.html
>>>>
>>>>
>>>> If not, where can I log an issue to request that we revisit that?
>>>> From
>>>> what I can see, everybody is likely just cut-and-pasting much the same
>>>> code
>>>> for this functionality.
>>>>
>>>> http://stackoverflow.com/questions/10121560/stdthread-naming-your-thread
>>>>
>>>>
>>>> Cheers,
>>>> Bob Summerwill
>>>> --
>>>> bob_at_[hidden]
>>>>
>>>>
>>>>
>>>
>>
>> _______________________________________________
>> Unsubscribe & other changes:
>> http://lists.boost.org/mailman/listinfo.cgi/boost
>>
>
>
>
> --
> bob_at_[hidden]
>
>

-- 
bob_at_[hidden]