<Slightly off-topic>
I am currently using 0MQ (not in chicken though) and have been looking at
nng for a while, but unsure how mature it is.
What's your feedback using it? What are you using it for?

Just curious :)


-- 
Arnaud Bailly - @dr_c0d3


On Sun, Oct 31, 2021 at 9:19 PM Ariela Wenner <aris...@disroot.org> wrote:

>
> So, here's a followup
>
> I linked pthreads and added the things you suggested to the wiki.
>
> As for the hangs, I hate to say this but it seems like the test was the
> problem.
> More precisely, it seems like the topic for the subscriber socket wasn't
> set
> fast enough, so when the publisher socket sent a message, the subscriber
> wasn't
> ready for it. Hang.
>
> I added some coordination in the test itself and ran the tests over 100
> times
> just to be sure. No hang. Maybe I'm just being extremely unlucky though,
> so as
> always feedback is appreciated.
>
> Just pushed a new tag with the changes, fingers crossed.
>
> On Sun, 31 Oct 2021 09:59:37 -0300
> Ariela Wenner <aris...@disroot.org> wrote:
>
> > Hi Mario!
> >
> > Thanks for the feedback! I'll be fixing the minor issues when I have
> time.
> >
> > As for the hang... yeah, damn. That's a bug I THOUGHT I had fixed but
> apparently not. It's weird that it only happens with pub-sub, and only
> sometimes. If anyone knows what might be going on hmu, help is immensely
> appreciated.
> >
> > I'll try re-submitting again after the issues are fixed.
> >
> > Thanks again! Cheers.
> >
> >
> > El 31 de octubre de 2021 7:03:20 a. m. GMT-03:00, Mario Domenech Goulart
> <ma...@parenteses.org> escribió:
> > >Hi Ariela,
> > >
> > >On Fri, 29 Oct 2021 13:35:52 -0300 Ariela Wenner <aris...@disroot.org>
> wrote:
> > >
> > >> Hi all! I'd like to add my nng egg to the coop. Went through
> test-new-egg and everything seems fine.
> > >>
> > >> Release info is at
> https://gitlab.com/ariSun/chicken-nng/-/raw/main/nng.release-info
> > >>
> > >> Wiki page is http://wiki.call-cc.org/eggref/5/nng
> > >>
> > >> This is the first time I publish an egg so please let me know if
> something's wrong.
> > >
> > >Thanks!  That looks very interesting.
> > >
> > >I've tried to test your egg as part of the setup procedure of our test
> > >machines and stumbled upon a couple of issues.  I'm using the following
> > >environment:
> > >
> > >* Debian 10.11
> > >* GCC 8.3.0
> > >* x86 system (32bit)
> > >* CHICKEN 5.2.0
> > >* nng version 1.5.2
> > >
> > >I'm able to compile and install the egg, but when I run tests I get
> > >
> > >  csi: symbol lookup error: .../lib/chicken/11/nng.so: undefined
> symbol: pthread_mutexattr_init
> > >
> > >I can work around that by using
> > >
> > >diff --git a/nng.egg b/nng.egg
> > >index 782ce6c..f5b4f9a 100644
> > >--- a/nng.egg
> > >+++ b/nng.egg
> > >@@ -5,6 +5,6 @@
> > >  (test-dependencies test uuid)
> > >  (dependencies foreigners srfi-18 srfi-69)
> > >  (components (extension nng
> > >-                        (csc-options "-L" "-lnng")
> > >+                        (csc-options "-L" "-lnng" "-L" "-lpthread")
> > >                         (source "src/nng.scm")))
> > >  (version 0.2.0))
> > >
> > >
> > >But then tests apparently hang in "tcp pub-sub":
> > >
> > >-- testing nng
> ---------------------------------------------------------------
> > >non-blocking .........................................................
> [ PASS]
> > >tcp req-rep ..........................................................
> [ PASS]
> > >inproc req-rep .......................................................
> [ PASS]
> > >tcp push-pull ........................................................
> [ PASS]
> > >inproc push-pull .....................................................
> [ PASS]
> > >tcp pair .............................................................
> [ PASS]
> > >inproc pair ..........................................................
> [ PASS]
> > >tcp pub-sub ..........................................................
> > >
> > >strace doesn't help much:
> > >
> > >$ strace -p 19841
> > >strace: Process 19841 attached
> > >restart_syscall(<... resuming interrupted poll ...>
> > >
> > >Would you know what can be wrong?
> > >
> > >Regarding the documentation, a few notes:
> > >
> > >* Please use the actual egg name as main heading (s/chicken-nng/nng/)
> > >
> > >* It would be nice to mention which versions of nng the egg is supposed
> > >  to be compatible with.  At least the versions it is known to work
> with.
> > >
> > >* Please add the following sections to the documentation:
> > >  * a "Repository" section with a link to the source repository
> > >  * a "License" section mentioning the license of the egg (should match
> > >    what's specified in the .egg file
> > >
> > >All the best.
> > >Mario
> > >--
> > >http://parenteses.org/mario
> > >
> >
> > --
> > Ariela Wenner
>
>

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