/* Copyright (c) 2009-2011 250bpm s.r.o. Copyright (c) 2007-2011 iMatix Corporation Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file This file is part of 0MQ. 0MQ is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. 0MQ is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see . */ #include #include #include "../include/zmq.h" int main (int argc, char *argv []) { void *ctx = zmq_init (1); assert (ctx); // Create a req/rep device. void *xreq = zmq_socket (ctx, ZMQ_XREQ); assert (xreq); int rc = zmq_bind (xreq, "tcp://127.0.0.1:5560"); assert (rc == 0); void *xrep = zmq_socket (ctx, ZMQ_XREP); assert (xrep); rc = zmq_bind (xrep, "tcp://127.0.0.1:5561"); assert (rc == 0); // Create a worker. void *rep = zmq_socket (ctx, ZMQ_REP); assert (rep); rc = zmq_connect (rep, "tcp://127.0.0.1:5560"); assert (rc == 0); // Create a client. void *req = zmq_socket (ctx, ZMQ_REQ); assert (req); rc = zmq_connect (req, "tcp://127.0.0.1:5561"); assert (rc == 0); // Send a request. rc = zmq_send (req, "ABC", 3, ZMQ_SNDMORE); assert (rc == 3); rc = zmq_send (req, "DEF", 3, 0); assert (rc == 3); // Pass the request through the device. for (int i = 0; i != 4; i++) { zmq_msg_t msg; rc = zmq_msg_init (&msg); assert (rc == 0); rc = zmq_recvmsg (xrep, &msg, 0); assert (rc >= 0); int rcvlabel; size_t sz = sizeof (rcvlabel); rc = zmq_getsockopt (xrep, ZMQ_RCVLABEL, &rcvlabel, &sz); assert (rc == 0); int rcvmore; rc = zmq_getsockopt (xrep, ZMQ_RCVMORE, &rcvmore, &sz); assert (rc == 0); rc = zmq_sendmsg (xreq, &msg, (rcvlabel ? ZMQ_SNDLABEL : 0) | (rcvmore ? ZMQ_SNDMORE : 0)); assert (rc >= 0); } // Receive the request. char buff [3]; rc = zmq_recv (rep, buff, 3, 0); assert (rc == 3); assert (memcmp (buff, "ABC", 3) == 0); int rcvlabel; size_t sz = sizeof (rcvlabel); rc = zmq_getsockopt (rep, ZMQ_RCVLABEL, &rcvlabel, &sz); assert (rc == 0); assert (!rcvlabel); int rcvmore; rc = zmq_getsockopt (rep, ZMQ_RCVMORE, &rcvmore, &sz); assert (rc == 0); assert (rcvmore); rc = zmq_recv (rep, buff, 3, 0); assert (rc == 3); assert (memcmp (buff, "DEF", 3) == 0); rc = zmq_getsockopt (rep, ZMQ_RCVLABEL, &rcvlabel, &sz); assert (rc == 0); assert (!rcvlabel); rc = zmq_getsockopt (rep, ZMQ_RCVMORE, &rcvmore, &sz); assert (rc == 0); assert (!rcvmore); // Send the reply. rc = zmq_send (rep, "GHI", 3, ZMQ_SNDMORE); assert (rc == 3); rc = zmq_send (rep, "JKL", 3, 0); assert (rc == 3); // Pass the reply through the device. for (int i = 0; i != 4; i++) { zmq_msg_t msg; rc = zmq_msg_init (&msg); assert (rc == 0); rc = zmq_recvmsg (xreq, &msg, 0); assert (rc >= 0); int rcvlabel; size_t sz = sizeof (rcvlabel); rc = zmq_getsockopt (xreq, ZMQ_RCVLABEL, &rcvlabel, &sz); assert (rc == 0); int rcvmore; rc = zmq_getsockopt (xreq, ZMQ_RCVMORE, &rcvmore, &sz); assert (rc == 0); rc = zmq_sendmsg (xrep, &msg, (rcvlabel ? ZMQ_SNDLABEL : 0) | (rcvmore ? ZMQ_SNDMORE : 0)); assert (rc >= 0); } // Receive the reply. rc = zmq_recv (req, buff, 3, 0); assert (rc == 3); assert (memcmp (buff, "GHI", 3) == 0); rc = zmq_getsockopt (req, ZMQ_RCVLABEL, &rcvlabel, &sz); assert (rc == 0); assert (!rcvlabel); rc = zmq_getsockopt (req, ZMQ_RCVMORE, &rcvmore, &sz); assert (rc == 0); assert (rcvmore); rc = zmq_recv (req, buff, 3, 0); assert (rc == 3); assert (memcmp (buff, "JKL", 3) == 0); rc = zmq_getsockopt (req, ZMQ_RCVLABEL, &rcvlabel, &sz); assert (rc == 0); assert (!rcvlabel); rc = zmq_getsockopt (req, ZMQ_RCVMORE, &rcvmore, &sz); assert (rc == 0); assert (!rcvmore); // Clean up. rc = zmq_close (req); assert (rc == 0); rc = zmq_close (rep); assert (rc == 0); rc = zmq_close (xrep); assert (rc == 0); rc = zmq_close (xreq); assert (rc == 0); rc = zmq_term (ctx); assert (rc == 0); return 0 ; }