libzmq/tests/test_shutdown_stress.cpp

/*
    Copyright (c) 2007-2010 iMatix Corporation

    This file is part of 0MQ.

    0MQ is free software; you can redistribute it and/or modify it under
    the terms of the Lesser GNU 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
    Lesser GNU General Public License for more details.

    You should have received a copy of the Lesser GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "../include/zmq.h"
#include <assert.h>
#include <pthread.h>
#include <stddef.h>

#define THREAD_COUNT 100

void *worker (void *s)
{
    int rc;

    rc = zmq_connect (s, "tcp://127.0.0.1:5555");
    assert (rc == 0);

    //  Start closing the socket while the connecting process is underway.
    rc = zmq_close (s);
    assert (rc == 0);

    return NULL;
}

int main (int argc, char *argv [])
{
    void *ctx;
    void *s1;
    void *s2;
    int i;
    int j;
    int rc;
    pthread_t threads [THREAD_COUNT];

    for (j = 0; j != 10; j++) {

        //  Check the shutdown with many parallel I/O threads.
        ctx = zmq_init (7);
        assert (ctx);

        s1 = zmq_socket (ctx, ZMQ_REP);
        assert (s1);

        rc = zmq_bind (s1, "tcp://127.0.0.1:5555");
        assert (rc == 0);

        for (i = 0; i != THREAD_COUNT; i++) {
            s2 = zmq_socket (ctx, ZMQ_SUB);
            assert (s2);
            rc = pthread_create (&threads [i], NULL, worker, s2);
            assert (rc == 0);
        }

        for (i = 0; i != THREAD_COUNT; i++) {
            rc = pthread_join (threads [i], NULL);
            assert (rc == 0);
        }

        rc = zmq_close (s1);
        assert (rc == 0);

        rc = zmq_term (ctx);
        assert (rc == 0);
    }

    return 0;
}