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libzmq/tests/test_router_mandatory_hwm.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

94 lines
3.2 KiB
C++

/* SPDX-License-Identifier: MPL-2.0 */
#include "testutil.hpp"
#include "testutil_unity.hpp"
SETUP_TEARDOWN_TESTCONTEXT
// DEBUG shouldn't be defined in sources as it will cause a redefined symbol
// error when it is defined in the build configuration. It appears that the
// intent here is to semi-permanently disable DEBUG tracing statements, so the
// implementation is changed to accommodate that intent.
//#define DEBUG 0
#define TRACE_ENABLED 0
void test_router_mandatory_hwm ()
{
if (TRACE_ENABLED)
fprintf (stderr, "Staring router mandatory HWM test ...\n");
char my_endpoint[MAX_SOCKET_STRING];
void *router = test_context_socket (ZMQ_ROUTER);
// Configure router socket to mandatory routing and set HWM and linger
int mandatory = 1;
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (router, ZMQ_ROUTER_MANDATORY,
&mandatory, sizeof (mandatory)));
int sndhwm = 1;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (router, ZMQ_SNDHWM, &sndhwm, sizeof (sndhwm)));
int linger = 1;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (router, ZMQ_LINGER, &linger, sizeof (linger)));
bind_loopback_ipv4 (router, my_endpoint, sizeof my_endpoint);
// Create dealer called "X" and connect it to our router, configure HWM
void *dealer = test_context_socket (ZMQ_DEALER);
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (dealer, ZMQ_ROUTING_ID, "X", 1));
int rcvhwm = 1;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (dealer, ZMQ_RCVHWM, &rcvhwm, sizeof (rcvhwm)));
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);
int i;
const int buf_size = 65536;
const uint8_t buf[buf_size] = {0};
// Send first batch of messages
for (i = 0; i < 100000; ++i) {
if (TRACE_ENABLED)
fprintf (stderr, "Sending message %d ...\n", i);
const int rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
if (rc == -1 && zmq_errno () == EAGAIN)
break;
TEST_ASSERT_EQUAL_INT (1, rc);
send_array_expect_success (router, buf, ZMQ_DONTWAIT);
}
// This should fail after one message but kernel buffering could
// skew results
TEST_ASSERT_LESS_THAN_INT (10, i);
msleep (1000);
// Send second batch of messages
for (; i < 100000; ++i) {
if (TRACE_ENABLED)
fprintf (stderr, "Sending message %d (part 2) ...\n", i);
const int rc = zmq_send (router, "X", 1, ZMQ_DONTWAIT | ZMQ_SNDMORE);
if (rc == -1 && zmq_errno () == EAGAIN)
break;
TEST_ASSERT_EQUAL_INT (1, rc);
send_array_expect_success (router, buf, ZMQ_DONTWAIT);
}
// This should fail after two messages but kernel buffering could
// skew results
TEST_ASSERT_LESS_THAN_INT (20, i);
if (TRACE_ENABLED)
fprintf (stderr, "Done sending messages.\n");
test_context_socket_close (router);
test_context_socket_close (dealer);
}
int main ()
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_router_mandatory_hwm);
return UNITY_END ();
}