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

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... 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@wanadoo.fr> wrote:

Le 06/05/2016 à 21:05, Bob Summerwill a écrit :

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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?

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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.

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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 :(.

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Maybe it will be nicer to me if I had a SVN account. I do not.

You don't need an svn account.

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Is trac the primary issue-tracker?

Yes. We want to move to github however.

Vicente

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On Wed, May 4, 2016 at 10:25 AM, Bob Summerwill wrote:

I've also been working with an external developer which is getting

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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-boo... /// /// 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... /// /// 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-boo...

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@summerwill.net

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-- bob@summerwill.net