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libzmq/tests/test_many_sockets.cpp
Luca Boccassi da31917f4f Relicense from LGPL3 + exceptions to Mozilla Public License version 2.0
Relicense permission collected from all relevant authors as tallied at:
https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md
The relicense grants are collected under RELICENSE/ and will be moved
to the above repository in a later commit.

Fixes https://github.com/zeromq/libzmq/issues/2376
2023-06-05 20:31:47 +01:00

72 lines
2.0 KiB
C++

/* SPDX-License-Identifier: MPL-2.0 */
#include "testutil.hpp"
#include "testutil_unity.hpp"
#include <stdio.h>
#include <stdlib.h>
#include <vector>
SETUP_TEARDOWN_TESTCONTEXT
void test_system_max ()
{
// Keep allocating sockets until we run out of system resources
const int no_of_sockets = 2 * 65536;
zmq_ctx_set (get_test_context (), ZMQ_MAX_SOCKETS, no_of_sockets);
std::vector<void *> sockets;
while (true) {
void *socket = zmq_socket (get_test_context (), ZMQ_PAIR);
if (!socket)
break;
sockets.push_back (socket);
}
TEST_ASSERT_LESS_OR_EQUAL (no_of_sockets,
static_cast<int> (sockets.size ()));
printf ("Socket creation failed after %i sockets\n",
static_cast<int> (sockets.size ()));
// System is out of resources, further calls to zmq_socket should return NULL
for (unsigned int i = 0; i < 10; ++i) {
TEST_ASSERT_NULL (zmq_socket (get_test_context (), ZMQ_PAIR));
}
// Clean up.
for (unsigned int i = 0; i < sockets.size (); ++i)
TEST_ASSERT_SUCCESS_ERRNO (zmq_close (sockets[i]));
}
void test_zmq_default_max ()
{
// Keep allocating sockets until we hit the default limit
std::vector<void *> sockets;
while (true) {
void *socket = zmq_socket (get_test_context (), ZMQ_PAIR);
if (!socket)
break;
sockets.push_back (socket);
}
// We may stop sooner if system has fewer available sockets
TEST_ASSERT_LESS_OR_EQUAL (ZMQ_MAX_SOCKETS_DFLT, sockets.size ());
// Further calls to zmq_socket should return NULL
for (unsigned int i = 0; i < 10; ++i) {
TEST_ASSERT_NULL (zmq_socket (get_test_context (), ZMQ_PAIR));
}
// Clean up
for (unsigned int i = 0; i < sockets.size (); ++i)
TEST_ASSERT_SUCCESS_ERRNO (zmq_close (sockets[i]));
}
int main (void)
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_system_max);
RUN_TEST (test_zmq_default_max);
return UNITY_END ();
}