As with all socket options, it's possible to set it, just nobody has needed it before. Just send a PR.
On Mon, 9 Nov 2020 at 19:34, Arnaud Loonstra <[email protected]> wrote: > > I guess you didn't get a reply just yet. I don't go very deep into the > core of libzmq. It seems you already had look yourself. I'm not aware of > a socket option you are looking for but we welcome a patch that > implements it? > > Perhaps some of the other maintainers can shred a light on whether this > is already possible in libzmq or why not. > > Rg, > > Arnaud > > On 06-11-2020 15:46, Andy Heroff via zeromq-dev wrote: > > Hi, > > > > We use 0MQ for messaging between applications across various VLANs > > within our system. Recently, we have added a requirement in which we > > would like to set the 802.1p priority field to something other than 0 > > for a subset of these connections (most, but not all). There doesn't > > appear to be any method exposed to directly change the priority of the > > 0MQ socket (e.g. setsockopt for SOL_SOCKET/SO_PRIORITY which would set > > the sk_priority field, and then get translated by egress-qos-map on the > > outbound link) within 0MQ. > > > > ZMQ_TOS is close, but by my understanding, that relies on (for us on > > top of Linux at least) a pre-determined mapping in the kernel and > > calculations based on DSCP values. Also, it doesn't appear to offer a > > mapping to the value of 3 which we're trying to set, even if we tried > > that route. > > > > As a temporary solution, we created a quick patch on top of ZMQ to > > allow directly setting the SO_PRIORITY via a new option in > > zmq::options_t::setsockopt, but it would be easier, of course, if we > > didn't have to patch 0MQ to accompish this end. Is there another method > > to set sk_priority directly via already existing 0MQ methods that I'm > > unaware of? > > > > Thanks in advance! > > > > --- Andy > > > > _______________________________________________ > > zeromq-dev mailing list > > [email protected] > > https://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > _______________________________________________ > zeromq-dev mailing list > [email protected] > https://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list [email protected] https://lists.zeromq.org/mailman/listinfo/zeromq-dev
