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Copyright (c) 2007-2011 iMatix Corporation
Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <>.
#include "../include/zmq.h"
#include <assert.h>
#include <pthread.h>
#include <stddef.h>
#define THREAD_COUNT 10
extern "C"
static void *worker (void *s)
int rc;
rc = zmq_connect (s, "tcp://");
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://");
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;