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120 lines
3.7 KiB
C++
120 lines
3.7 KiB
C++
/*
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Copyright (c) 2007-2017 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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// This is our server task.
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// It runs a proxy with a single REP socket as both frontend and backend.
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void server_task (void *ctx_)
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{
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size_t len = MAX_SOCKET_STRING;
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char my_endpoint[MAX_SOCKET_STRING];
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void *rep = zmq_socket (ctx_, ZMQ_REP);
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assert (rep);
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int rc = zmq_bind (rep, "tcp://127.0.0.1:*");
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assert (rc == 0);
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rc = zmq_getsockopt (rep, ZMQ_LAST_ENDPOINT, my_endpoint, &len);
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assert (rc == 0);
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// Control socket receives terminate command from main over inproc
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void *control = zmq_socket (ctx_, ZMQ_REQ);
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assert (control);
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rc = zmq_connect (control, "inproc://control");
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assert (rc == 0);
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rc = s_send (control, my_endpoint);
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assert (rc > 0);
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// Use rep as both frontend and backend
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rc = zmq_proxy_steerable (rep, rep, NULL, control);
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assert (rc == 0);
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rc = zmq_close (rep);
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assert (rc == 0);
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rc = zmq_close (control);
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assert (rc == 0);
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}
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// The main thread simply starts several clients and a server, and then
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// waits for the server to finish.
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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 *server_thread = zmq_threadstart (&server_task, ctx);
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// Control socket receives terminate command from main over inproc
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void *control = zmq_socket (ctx, ZMQ_REP);
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assert (control);
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int rc = zmq_bind (control, "inproc://control");
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assert (rc == 0);
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char *my_endpoint = s_recv (control);
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assert (my_endpoint);
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// client socket pings proxy over tcp
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void *req = zmq_socket (ctx, ZMQ_REQ);
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assert (req);
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rc = zmq_connect (req, my_endpoint);
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assert (rc == 0);
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char buf[255];
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rc = zmq_send (req, "msg1", 4, 0);
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assert (rc == 4);
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rc = zmq_recv (req, buf, 255, 0);
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assert (rc == 4);
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assert (memcmp (buf, "msg1", 4) == 0);
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rc = zmq_send (req, "msg22", 5, 0);
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assert (rc == 5);
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rc = zmq_recv (req, buf, 255, 0);
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assert (rc == 5);
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assert (memcmp (buf, "msg22", 5) == 0);
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rc = zmq_send (control, "TERMINATE", 9, 0);
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assert (rc == 9);
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rc = zmq_close (control);
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assert (rc == 0);
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rc = zmq_close (req);
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assert (rc == 0);
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free (my_endpoint);
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zmq_threadclose (server_thread);
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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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