On Solus Linux, with system-level ZeroMQ 4.2.2, a ZMQ_ROUTER type socket will not receive any messages, simply blocking forever. I tested it with both this binding and zmqd, and tried different combinations of req/dealer->rep/router, and consistently only the router socket was having any trouble.

If it makes any difference, the server and client are in separate D Threads, launched from the main thread. I tried both zmqd's global context and a manually created context from zmq_ctx_new.

To confirm, I compiled a few of ZeroMQ's C examples, and they function as expected.
I also created a local version 4.2.2, replacing the headers in the binding's C directory with the system-wide headers, and compiled my test program against that, to no avail.

EDIT: Also tested on latest master, to no effect.

tryReceive throws an exception on Windows when there is no data to be read. The reason is that on this line it uses core.stdc.errno.errno instead of zeromq's own errno which is specifically to deal with Windows.

• using DMD64 D Compiler v2.065
• using libzmq 3.2.4
• all unit tests have passed

dmd examples/hwserver.d
examples/hwserver.d(23): Error: function deimos.zmq.zmq.zmq_recv (void* s, void* buf, ulong len, int flags) is not callable using argument types (void*, zmq_msg_t*, int)
examples/hwserver.d(37): Error: function deimos.zmq.zmq.zmq_send (void* s, const(void*) buf, ulong len, int flags) is not callable using argument types (void*, zmq_msg_t*, int)

This repository currently has no version tags. I would like to add tags so that Deimos/zeromq versions are equal to the ZeroMQ versions to which they correspond (v3.2.4, v4.0.3, etc.). Then, users can select the version of ZeroMQ they want to use via their dub.json file.

Unfortunately, it is impossible to submit "tag requests", so I'll have to do it manually. If I can just get an "OK" from someone, I'll get right on it.

I was trying to get some ZMQ stuff working in dlang and noticed that the code in zmq.d is indicated as deprecated for some of the methods used in the examples within this repo.

/*  Deprecated methods */
int zmq_device(int type, void* frontend, void* backend);
int zmq_sendmsg(void* s, zmq_msg_t* msg, int flags);
int zmq_recvmsg(void* s, zmq_msg_t* msg, int flags);

seems like the examples should use zmq_msg_recv and zmq_msg_send if those methods are really deprecated? More than willing to update the examples myself but wanted clarification

Otherwise the zmqd package won't build on Windows.