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/* SPDX-License-Identifier: MPL-2.0 */
#include "testutil.hpp"
#include "testutil_unity.hpp"
#include <string.h>
SETUP_TEARDOWN_TESTCONTEXT
#ifdef ZMQ_BUILD_DRAFT_API
bool send_msg_to_peer_if_ready (void *router_, const char *peer_routing_id_)
{
int rc = TEST_ASSERT_SUCCESS_MESSAGE_ERRNO (
zmq_socket_get_peer_state (router_, peer_routing_id_, 1),
peer_routing_id_);
if (rc & ZMQ_POLLOUT) {
send_string_expect_success (router_, peer_routing_id_,
ZMQ_SNDMORE | ZMQ_DONTWAIT);
send_string_expect_success (router_, "Hello", ZMQ_DONTWAIT);
return true;
}
return false;
}
#endif
void test_get_peer_state ()
{
#ifdef ZMQ_BUILD_DRAFT_API
void *router = test_context_socket (ZMQ_ROUTER);
int mandatory = 1;
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (router, ZMQ_ROUTER_MANDATORY,
&mandatory, sizeof (mandatory)));
const char *my_endpoint = "inproc://test_get_peer_state";
TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (router, my_endpoint));
void *dealer1 = test_context_socket (ZMQ_DEALER);
void *dealer2 = test_context_socket (ZMQ_DEALER);
// Lower HWMs to allow doing the test with fewer messages
const int hwm = 100;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (router, ZMQ_SNDHWM, &hwm, sizeof (int)));
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (dealer1, ZMQ_RCVHWM, &hwm, sizeof (int)));
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (dealer2, ZMQ_RCVHWM, &hwm, sizeof (int)));
const char *dealer1_routing_id = "X";
const char *dealer2_routing_id = "Y";
// Name dealer1 "X" and connect it to our router
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (dealer1, ZMQ_ROUTING_ID, dealer1_routing_id, 1));
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (dealer1, my_endpoint));
// Name dealer2 "Y" and connect it to our router
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (dealer2, ZMQ_ROUTING_ID, dealer2_routing_id, 1));
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (dealer2, my_endpoint));
// Get message from both dealers to know when connection is ready
send_string_expect_success (dealer1, "Hello", 0);
recv_string_expect_success (router, dealer1_routing_id, 0);
recv_string_expect_success (router, "Hello", 0);
send_string_expect_success (dealer2, "Hello", 0);
recv_string_expect_success (router, dealer2_routing_id, 0);
recv_string_expect_success (router, "Hello", 0);
void *poller = zmq_poller_new ();
TEST_ASSERT_NOT_NULL (poller);
// Poll on router and dealer1, but not on dealer2
TEST_ASSERT_SUCCESS_ERRNO (
zmq_poller_add (poller, router, NULL, ZMQ_POLLOUT));
TEST_ASSERT_SUCCESS_ERRNO (
zmq_poller_add (poller, dealer1, NULL, ZMQ_POLLIN));
const unsigned int count = 10000;
const unsigned int event_size = 2;
bool dealer2_blocked = false;
unsigned int dealer1_sent = 0, dealer2_sent = 0, dealer1_received = 0;
zmq_poller_event_t events[event_size];
for (unsigned int iteration = 0; iteration < count; ++iteration) {
TEST_ASSERT_SUCCESS_ERRNO (
zmq_poller_wait_all (poller, events, event_size, -1));
for (unsigned int event_no = 0; event_no < event_size; ++event_no) {
const zmq_poller_event_t ¤t_event = events[event_no];
if (current_event.socket == router
&& current_event.events & ZMQ_POLLOUT) {
if (send_msg_to_peer_if_ready (router, dealer1_routing_id))
++dealer1_sent;
if (send_msg_to_peer_if_ready (router, dealer2_routing_id))
++dealer2_sent;
else
dealer2_blocked = true;
}
if (current_event.socket == dealer1
&& current_event.events & ZMQ_POLLIN) {
recv_string_expect_success (dealer1, "Hello", ZMQ_DONTWAIT);
int more;
size_t more_size = sizeof (more);
TEST_ASSERT_SUCCESS_ERRNO (
zmq_getsockopt (dealer1, ZMQ_RCVMORE, &more, &more_size));
TEST_ASSERT_FALSE (more);
++dealer1_received;
}
// never read from dealer2, so its pipe becomes full eventually
}
}
printf ("dealer1_sent = %u, dealer2_sent = %u, dealer1_received = %u\n",
dealer1_sent, dealer2_sent, dealer1_received);
TEST_ASSERT_TRUE (dealer2_blocked);
zmq_poller_destroy (&poller);
test_context_socket_close (router);
test_context_socket_close (dealer1);
test_context_socket_close (dealer2);
#endif
}
void test_get_peer_state_corner_cases ()
{
#ifdef ZMQ_BUILD_DRAFT_API
const char peer_routing_id[] = "foo";
// call get_peer_state with NULL socket
int rc = zmq_socket_get_peer_state (NULL, peer_routing_id,
strlen (peer_routing_id));
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (ENOTSOCK, errno);
void *dealer = test_context_socket (ZMQ_DEALER);
void *router = test_context_socket (ZMQ_ROUTER);
// call get_peer_state with a non-ROUTER socket
rc = zmq_socket_get_peer_state (dealer, peer_routing_id,
strlen (peer_routing_id));
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (ENOTSUP, errno);
// call get_peer_state for an unknown routing id
rc = zmq_socket_get_peer_state (router, peer_routing_id,
strlen (peer_routing_id));
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EHOSTUNREACH, errno);
test_context_socket_close (router);
test_context_socket_close (dealer);
#endif
}
void test_basic ()
{
char my_endpoint[MAX_SOCKET_STRING];
void *router = test_context_socket (ZMQ_ROUTER);
bind_loopback_ipv4 (router, my_endpoint, sizeof my_endpoint);
// Send a message to an unknown peer with the default setting
// This will not report any error
send_string_expect_success (router, "UNKNOWN", ZMQ_SNDMORE);
send_string_expect_success (router, "DATA", 0);
// Send a message to an unknown peer with mandatory routing
// This will fail
int mandatory = 1;
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (router, ZMQ_ROUTER_MANDATORY,
&mandatory, sizeof (mandatory)));
int rc = zmq_send (router, "UNKNOWN", 7, ZMQ_SNDMORE);
TEST_ASSERT_EQUAL_INT (-1, rc);
TEST_ASSERT_EQUAL_INT (EHOSTUNREACH, errno);
// Create dealer called "X" and connect it to our router
void *dealer = test_context_socket (ZMQ_DEALER);
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (dealer, ZMQ_ROUTING_ID, "X", 1));
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (dealer, my_endpoint));
// Get message from dealer to know when connection is ready
send_string_expect_success (dealer, "Hello", 0);
recv_string_expect_success (router, "X", 0);
// Send a message to connected dealer now
// It should work
send_string_expect_success (router, "X", ZMQ_SNDMORE);
send_string_expect_success (router, "Hello", 0);
test_context_socket_close (router);
test_context_socket_close (dealer);
}
int main (void)
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_basic);
RUN_TEST (test_get_peer_state);
RUN_TEST (test_get_peer_state_corner_cases);
return UNITY_END ();
}
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