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
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