Thanks, Michel-- missed that function in the zctx set! Many thanks!
murf On Mon, Jun 23, 2014 at 8:56 PM, Michel Pelletier < [email protected]> wrote: > You can use zctx_underlying to get the low level context object. Here is > an example using pyczmq: > > >>> from pyczmq import zctx, zsocket, zmq > >>> s = zctx.new() > >>> zctx.underlying(s) # None until a socket is made > >>> p = zsocket.new(s, zmq.PUSH) > >>> zmq.ctx_set(zctx.underlying(s), zmq.MAX_SOCKETS, 10) > 0 > >>> zmq.ctx_get(zctx.underlying(s), zmq.MAX_SOCKETS) > 10 > >>> > > > > On Mon, Jun 23, 2014 at 7:26 PM, Steve Murphy <[email protected]> wrote: > >> Philip-- >> >> In the code you provided, you are mixing czmq >> and zmq lib calls, and as stated, it won't work. >> >> The zctx_t that zctx_new provides is NOT a void* >> that zmq_ctx_new() would give you, and the calls to zmq_ctx_set() and >> .._get() >> will not work properly if given a zctx_t. If you replace your call >> to zctx_new() with zmq_ctx_new(), you will get better results. >> >> Now, Pieter mentioned that: >> >> "You can lower the max sockets per context, before creating your first >> context. See zmq_ctx_set ()." >> >> But I think he meant to say "before creating your first *socket*." >> >> (which, btw, is not in the ZMQ ref manual.) >> >> I double checked the zctx page in the CZMQ spec, and no function >> is available to get/set the context options... at least the MAX_SOCKETS, >> that is. >> So, if you need to play with MAX_SOCKETS, you have to abandon CZMQ, as >> there is no >> way to slip from the zctx_t world to the void* world. >> >> And a quick look at max sockets on a new context shows that the default >> for >> a new context is 1023. in the 4.1 stuff, there is also a ZMQ_SOCKET_LIMIT, >> which is the absolute maximum you can set in a set() call, but this isn't >> in the 4.0 versions. >> >> murf >> >> >> >> On Mon, Jun 23, 2014 at 10:25 AM, Philip Dizon <[email protected]> >> wrote: >> >>> Is it possible to set it ZMQ_MAX_SOCKETS for a czmq context object >>> because I'm getting an assert failure when I do a zmq_ctx_get? >>> >>> e.g. >>> client->ctx = zctx_new(); >>> assert(client->ctx); >>> >>> int max_sockets = 256; >>> zmq_ctx_set (client->ctx, ZMQ_MAX_SOCKETS, max_sockets); >>> assert (zmq_ctx_get (client->ctx, ZMQ_MAX_SOCKETS) == max_sockets); >>> >>> >>> >>> On Thu, Jun 19, 2014 at 4:05 PM, Pieter Hintjens <[email protected]> wrote: >>> >>>> You can lower the max sockets per context, before creating your first >>>> context. See zmq_ctx_set (). >>>> >>>> On Fri, Jun 20, 2014 at 12:39 AM, Philip Dizon <[email protected]> >>>> wrote: >>>> > Hi, >>>> > >>>> > I noticed that just creating a new zmq context and socket bumps my >>>> memory >>>> > usage by 18MB, and this is a big problem on my embedded system which >>>> only >>>> > contains about 100MB. I determined this by using top command and >>>> comparing >>>> > the difference in mem usage. >>>> > Is there any sort of option I can use to lower the memory usage? >>>> > >>>> > Thanks >>>> > >>>> > _______________________________________________ >>>> > 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 >>> >>> >> >> >> -- >> >> Steve Murphy >> ParseTree Corporation >> 57 Lane 17 >> Cody, WY 82414 >> ✉ murf at parsetree dot com >> ☎ 307-899-5535 >> >> >> >> _______________________________________________ >> 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 > > -- Steve Murphy ParseTree Corporation 57 Lane 17 Cody, WY 82414 ✉ murf at parsetree dot com ☎ 307-899-5535
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