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/* SPDX-License-Identifier: MPL-2.0 */
#include "testutil.hpp"
#include "testutil_unity.hpp"
#include <stdlib.h>
void setUp ()
{
setup_test_context ();
}
// This is a test for issue #1382. The server thread creates a SUB-PUSH
// steerable proxy. The main process then sends messages to the SUB
// but there is no pull on the other side, previously the proxy blocks
// in writing to the backend, preventing the proxy from terminating
void server_task (void * /*unused_*/)
{
char my_endpoint[MAX_SOCKET_STRING];
// Frontend socket talks to main process
void *frontend = zmq_socket (get_test_context (), ZMQ_SUB);
TEST_ASSERT_NOT_NULL (frontend);
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (frontend, ZMQ_SUBSCRIBE, "", 0));
bind_loopback_ipv4 (frontend, my_endpoint, sizeof my_endpoint);
// Nice socket which is never read
void *backend = zmq_socket (get_test_context (), ZMQ_PUSH);
TEST_ASSERT_NOT_NULL (backend);
TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (backend, "tcp://127.0.0.1:*"));
// Control socket receives terminate command from main over inproc
void *control = zmq_socket (get_test_context (), ZMQ_REQ);
TEST_ASSERT_NOT_NULL (control);
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (control, "inproc://control"));
send_string_expect_success (control, my_endpoint, 0);
// Connect backend to frontend via a proxy
zmq_proxy (frontend, backend, NULL);
TEST_ASSERT_SUCCESS_ERRNO (zmq_close (frontend));
TEST_ASSERT_SUCCESS_ERRNO (zmq_close (backend));
TEST_ASSERT_SUCCESS_ERRNO (zmq_close (control));
}
// The main thread simply starts a basic steerable proxy server, publishes some messages, and then
// waits for the server to terminate.
void test_proxy_terminate ()
{
void *thread = zmq_threadstart (&server_task, NULL);
// Control socket receives terminate command from main over inproc
void *control = test_context_socket (ZMQ_REP);
TEST_ASSERT_NOT_NULL (control);
TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (control, "inproc://control"));
char *my_endpoint = s_recv (control);
TEST_ASSERT_NOT_NULL (my_endpoint);
msleep (500); // Run for 500 ms
// Start a secondary publisher which writes data to the SUB-PUSH server socket
void *publisher = test_context_socket (ZMQ_PUB);
TEST_ASSERT_NOT_NULL (publisher);
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (publisher, my_endpoint));
msleep (SETTLE_TIME);
send_string_expect_success (publisher, "This is a test", 0);
msleep (50);
send_string_expect_success (publisher, "This is a test", 0);
msleep (50);
send_string_expect_success (publisher, "This is a test", 0);
test_context_socket_close (publisher);
test_context_socket_close (control);
teardown_test_context ();
free (my_endpoint);
zmq_threadclose (thread);
}
int main (void)
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_proxy_terminate);
return UNITY_END ();
}
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