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/*
Copyright (c) 2007-2013 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
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 <http://www.gnu.org/licenses/>.
*/
#include "testutil.hpp"
#include <zmq.h>
#include <stdio.h>
#include <stdlib.h>
#include <vector>
void test_system_max ()
{
// Keep allocating sockets until we run out of system resources
const int no_of_sockets = 2 * 65536;
void *ctx = zmq_ctx_new ();
zmq_ctx_set (ctx, ZMQ_MAX_SOCKETS, no_of_sockets);
std::vector <void*> sockets;
while (true) {
void *socket = zmq_socket (ctx, ZMQ_PAIR);
if (!socket)
break;
sockets.push_back (socket);
}
assert ((int) sockets.size () < no_of_sockets);
// System is out of resources, further calls to zmq_socket should return NULL
for (unsigned int i = 0; i < 10; ++i) {
void *socket = zmq_socket (ctx, ZMQ_PAIR);
assert (socket == NULL);
}
// Clean up.
for (unsigned int i = 0; i < sockets.size (); ++i)
zmq_close (sockets [i]);
zmq_ctx_destroy (ctx);
}
void test_zmq_default_max ()
{
// Keep allocating sockets until we hit the default limit
void *ctx = zmq_ctx_new ();
std::vector<void*> sockets;
while (true) {
void *socket = zmq_socket (ctx, ZMQ_PAIR);
if (!socket)
break;
sockets.push_back (socket);
}
// We may stop sooner if system has fewer available sockets
assert (sockets.size () <= ZMQ_MAX_SOCKETS_DFLT);
// Further calls to zmq_socket should return NULL
for (unsigned int i = 0; i < 10; ++i) {
void *socket = zmq_socket (ctx, ZMQ_PAIR);
assert (socket == NULL);
}
// Clean up
for (unsigned int i = 0; i < sockets.size (); ++i)
zmq_close (sockets [i]);
zmq_ctx_destroy (ctx);
}
int main (void)
{
setup_test_environment ();
test_system_max ();
test_zmq_default_max ();
return 0;
}
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