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/*
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 <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <string.h>
#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 ;
}
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