mirror of
https://github.com/zeromq/libzmq.git
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137 lines
4.4 KiB
C++
137 lines
4.4 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq 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 (LGPL) as published
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by 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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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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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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// Create a publisher
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void *pub = zmq_socket (ctx, ZMQ_PUB);
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assert (pub);
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int rc = zmq_bind (pub, "inproc://soname");
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assert (rc == 0);
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// Create two subscribers
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void *sub1 = zmq_socket (ctx, ZMQ_SUB);
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assert (sub1);
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rc = zmq_connect (sub1, "inproc://soname");
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assert (rc == 0);
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void *sub2 = zmq_socket (ctx, ZMQ_SUB);
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assert (sub2);
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rc = zmq_connect (sub2, "inproc://soname");
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assert (rc == 0);
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// Subscribe pub1 to one prefix
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// and pub2 to another prefix.
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const char PREFIX1[] = "prefix1";
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const char PREFIX2[] = "p2";
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rc = zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, PREFIX1, sizeof(PREFIX1));
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assert (rc == 0);
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rc = zmq_setsockopt (sub2, ZMQ_SUBSCRIBE, PREFIX2, sizeof(PREFIX2));
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assert (rc == 0);
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// Send a message with the first prefix
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rc = zmq_send_const(pub, PREFIX1, sizeof(PREFIX1), 0);
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assert (rc == sizeof(PREFIX1));
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// sub1 should receive it, but not sub2
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rc = zmq_recv (sub1, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == sizeof(PREFIX1));
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rc = zmq_recv (sub2, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == -1);
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assert (errno == EAGAIN);
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// Send a message with the second prefix
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rc = zmq_send_const(pub, PREFIX2, sizeof(PREFIX2), 0);
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assert (rc == sizeof(PREFIX2));
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// sub2 should receive it, but not sub1
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rc = zmq_recv (sub2, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == sizeof(PREFIX2));
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rc = zmq_recv (sub1, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == -1);
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assert (errno == EAGAIN);
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// Now invert the matching
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int invert = 1;
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rc = zmq_setsockopt (pub, ZMQ_INVERT_MATCHING, &invert, sizeof(invert));
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assert (rc == 0);
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// ... on both sides, otherwise the SUB socket will filter the messages out
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rc = zmq_setsockopt (sub1, ZMQ_INVERT_MATCHING, &invert, sizeof(invert));
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rc = zmq_setsockopt (sub2, ZMQ_INVERT_MATCHING, &invert, sizeof(invert));
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assert (rc == 0);
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// Send a message with the first prefix
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rc = zmq_send_const(pub, PREFIX1, sizeof(PREFIX1), 0);
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assert (rc == sizeof(PREFIX1));
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// sub2 should receive it, but not sub1
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rc = zmq_recv (sub2, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == sizeof(PREFIX1));
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rc = zmq_recv (sub1, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == -1);
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assert (errno == EAGAIN);
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// Send a message with the second prefix
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rc = zmq_send_const(pub, PREFIX2, sizeof(PREFIX2), 0);
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assert (rc == sizeof(PREFIX2));
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// sub1 should receive it, but not sub2
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rc = zmq_recv (sub1, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == sizeof(PREFIX2));
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rc = zmq_recv (sub2, NULL, 0, ZMQ_DONTWAIT);
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assert (rc == -1);
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assert (errno == EAGAIN);
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// Clean up.
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rc = zmq_close (pub);
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assert (rc == 0);
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rc = zmq_close (sub1);
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assert (rc == 0);
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rc = zmq_close (sub2);
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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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