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102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/*
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Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "testutil.hpp"
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int main (void)
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{
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setup_test_environment();
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void *ctx = zmq_ctx_new ();
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assert (ctx);
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void *router = zmq_socket (ctx, ZMQ_ROUTER);
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assert (router);
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int rc = zmq_bind (router, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Enable the handover flag
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int handover = 1;
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rc = zmq_setsockopt (router, ZMQ_ROUTER_HANDOVER, &handover, sizeof (handover));
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assert (rc == 0);
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// Create dealer called "X" and connect it to our router
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void *dealer_one = zmq_socket (ctx, ZMQ_DEALER);
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assert (dealer_one);
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rc = zmq_setsockopt (dealer_one, ZMQ_IDENTITY, "X", 1);
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assert (rc == 0);
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rc = zmq_connect (dealer_one, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Get message from dealer to know when connection is ready
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char buffer [255];
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rc = zmq_send (dealer_one, "Hello", 5, 0);
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assert (rc == 5);
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rc = zmq_recv (router, buffer, 255, 0);
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assert (rc == 1);
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assert (buffer [0] == 'X');
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rc = zmq_recv (router, buffer, 255, 0);
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assert (rc == 5);
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// Now create a second dealer that uses the same identity
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void *dealer_two = zmq_socket (ctx, ZMQ_DEALER);
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assert (dealer_two);
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rc = zmq_setsockopt (dealer_two, ZMQ_IDENTITY, "X", 1);
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assert (rc == 0);
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rc = zmq_connect (dealer_two, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Get message from dealer to know when connection is ready
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rc = zmq_send (dealer_two, "Hello", 5, 0);
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assert (rc == 5);
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rc = zmq_recv (router, buffer, 255, 0);
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assert (rc == 1);
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assert (buffer [0] == 'X');
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rc = zmq_recv (router, buffer, 255, 0);
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assert (rc == 5);
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// Send a message to 'X' identity. This should be delivered
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// to the second dealer, instead of the first beccause of the handover.
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rc = zmq_send (router, "X", 1, ZMQ_SNDMORE);
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assert (rc == 1);
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rc = zmq_send (router, "Hello", 5, 0);
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assert (rc == 5);
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// Ensure that the first dealer doesn't receive the message
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// but the second one does
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rc = zmq_recv (dealer_one, buffer, 255, ZMQ_NOBLOCK);
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assert (rc == -1);
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rc = zmq_recv (dealer_two, buffer, 255, 0);
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assert (rc == 5);
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rc = zmq_close (router);
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assert (rc == 0);
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rc = zmq_close (dealer_one);
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assert (rc == 0);
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rc = zmq_close (dealer_two);
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assert (rc == 0);
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rc = zmq_ctx_term (ctx);
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assert (rc == 0);
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return 0 ;
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}
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