Oh, and I sent you your first pull request. :)
On Wed, Jan 20, 2016 at 12:39 PM, Pieter Hintjens <[email protected]> wrote: > Hi Axel, > > This is really cool... could be the basis for other embedded projects. > I'd like to move this into the zeromq organization and use our C4.1 > contribution policy, is that OK? > > The name suggests you ported libzmq, which is misleading. It'd be > better to say "ZMTP" instead of "ZeroMQ". > > I've invited you to the ZeroMQ core team so you can move this project > (if you approve of this idea). > > -Pieter > > > On Wed, Jan 20, 2016 at 11:47 AM, Axel Voitier <[email protected]> wrote: >> Yes, I actually started from libzmtp. Few things remain from it now >> (channels and msgs) as I had to adapt it to whatever Contiki provides. >> Contiki does not have a posix socket interface. But the hardest was t adapt >> to its threading model (protothreads) which were really constraining... >> >> Also, I adapted the memory allocations to do use as much as possible >> preallocation (called memb in Contiki). A few malloc remains here and there, >> but much less than initially. >> >> >> However, if I was to restart this project, I would not pick Contiki anymore. >> But rather give it a try with RIOT, which seems to have something that match >> a POSIX interface. And a much saner threading model that behaves a bit like >> an event loop with a hub (and reusing features from the underlying MCU to do >> context switching, like the SVC instruction with ARM). >> >> >> Cheers, >> Axel >> >> -- >> Contact: [email protected] >> Secure: [email protected] >> >> 2016-01-20 9:31 GMT+01:00 Benjamin Henrion <[email protected]>: >>> >>> On Wed, Jan 20, 2016 at 4:01 AM, Axel Voitier <[email protected]> >>> wrote: >>> > Hello, >>> > >>> > I have published an attempt at porting zeromq to Contiki OS: >>> > https://github.com/Alidron/contiki-zeromq >>> > >>> > It has a few limitations still. However, I covered most basics of ZMTP >>> > and a >>> > handful of sockets. It is not entirely compliant with the RFCs for the >>> > moment though (some parts prove to be harder to do than I expected). >>> > >>> > I have been able to run it on a constrained setup: ARM Cortext M3 >>> > running at >>> > 32MHz, with 512KB of flash (the demo programs weight about 130KB) and >>> > 80KB >>> > of RAM. And with a sub-1GHz RF link. >>> > >>> > The implementation makes use of Contiki network stack, which can use >>> > TCP, >>> > IPv4, IPv6 and 6LoWPAN. I actually tested it over 6LoWPAN on the sub-GHz >>> > link :). >>> > >>> > It is not has featured and fast as running zeromq between two usual >>> > computers. But I hope this implementation prove it is feasible to have >>> > ZeroMQ on such constrained hardware :). >>> >>> Have you tried to compile libzmtp? >>> >>> One of my short-term goal is to make libzmptp running on esp8266 and >>> some cortex m3 board. >>> >>> -- >>> Benjamin Henrion <bhenrion at ffii.org> >>> FFII Brussels - +32-484-566109 - +32-2-3500762 >>> "In July 2005, after several failed attempts to legalise software >>> patents in Europe, the patent establishment changed its strategy. >>> Instead of explicitly seeking to sanction the patentability of >>> software, they are now seeking to create a central European patent >>> court, which would establish and enforce patentability rules in their >>> favor, without any possibility of correction by competing courts or >>> democratically elected legislators." >>> _______________________________________________ >>> zeromq-dev mailing list >>> [email protected] >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> >> >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
