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96 lines
3.2 KiB
C++
96 lines
3.2 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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#include <unistd.h> // For alarm()
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const char *address = "tcp://127.0.0.1:6571";
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#define NUM_MESSAGES 5
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#define TIMEOUT_SECS 5 // Global timeout
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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 and bind pull socket to receive messages
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void *pull = zmq_socket (ctx, ZMQ_PULL);
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assert (pull);
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int rc = zmq_bind (pull, address);
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assert (rc == 0);
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int pid = fork ();
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if (pid == 0) {
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// Child process
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// Immediately close parent sockets and context
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zmq_close (pull);
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zmq_ctx_term (ctx);
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// Create new context, socket, connect and send some messages
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void *child_ctx = zmq_ctx_new ();
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assert (child_ctx);
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void *push = zmq_socket (child_ctx, ZMQ_PUSH);
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assert (push);
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rc = zmq_connect (push, address);
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assert (rc == 0);
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int count;
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for (count = 0; count < NUM_MESSAGES; count++)
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zmq_send (push, "Hello", 5, 0);
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zmq_close (push);
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zmq_ctx_destroy (child_ctx);
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exit (0);
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}
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else {
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// Parent process
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alarm(TIMEOUT_SECS); // Set upper limit on runtime
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int count;
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for (count = 0; count < NUM_MESSAGES; count++) {
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char buffer [5];
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int num_bytes = zmq_recv (pull, buffer, 5, 0);
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assert (num_bytes == 5);
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}
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int child_status;
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while (true) {
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rc = waitpid (pid, &child_status, 0);
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if (rc == -1 && errno == EINTR)
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continue;
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assert (rc > 0);
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// Verify the status code of the child was zero
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assert (WEXITSTATUS (child_status) == 0);
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break;
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}
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exit (0);
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}
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return 0;
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}
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