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https://github.com/zeromq/libzmq.git
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a95c4ab404
Solution: add sleep after connecting such that sending is not started before connection succeeded
211 lines
6.3 KiB
C++
211 lines
6.3 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "testutil.hpp"
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#include "testutil_unity.hpp"
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#include <unity.h>
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void setUp ()
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{
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setup_test_context ();
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}
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void tearDown ()
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{
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teardown_test_context ();
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}
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const int MAX_SENDS = 10000;
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void test_change_before_connected ()
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{
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int rc;
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void *bind_socket = test_context_socket (ZMQ_PUSH);
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void *connect_socket = test_context_socket (ZMQ_PULL);
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int val = 2;
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rc = zmq_setsockopt (connect_socket, ZMQ_RCVHWM, &val, sizeof (val));
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TEST_ASSERT_EQUAL_INT (0, rc);
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rc = zmq_setsockopt (bind_socket, ZMQ_SNDHWM, &val, sizeof (val));
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TEST_ASSERT_EQUAL_INT (0, rc);
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zmq_connect (connect_socket, "inproc://a");
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zmq_bind (bind_socket, "inproc://a");
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size_t placeholder = sizeof (val);
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val = 0;
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rc = zmq_getsockopt (bind_socket, ZMQ_SNDHWM, &val, &placeholder);
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TEST_ASSERT_EQUAL_INT (0, rc);
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TEST_ASSERT_EQUAL_INT (2, val);
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int send_count = 0;
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while (send_count < MAX_SENDS
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&& zmq_send (bind_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
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++send_count;
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TEST_ASSERT_EQUAL_INT (4, send_count);
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test_context_socket_close (bind_socket);
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test_context_socket_close (connect_socket);
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}
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void test_change_after_connected ()
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{
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int rc;
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void *bind_socket = test_context_socket (ZMQ_PUSH);
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void *connect_socket = test_context_socket (ZMQ_PULL);
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int val = 1;
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rc = zmq_setsockopt (connect_socket, ZMQ_RCVHWM, &val, sizeof (val));
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TEST_ASSERT_EQUAL_INT (0, rc);
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rc = zmq_setsockopt (bind_socket, ZMQ_SNDHWM, &val, sizeof (val));
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TEST_ASSERT_EQUAL_INT (0, rc);
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zmq_connect (connect_socket, "inproc://a");
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zmq_bind (bind_socket, "inproc://a");
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val = 5;
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rc = zmq_setsockopt (bind_socket, ZMQ_SNDHWM, &val, sizeof (val));
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TEST_ASSERT_EQUAL_INT (0, rc);
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size_t placeholder = sizeof (val);
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val = 0;
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rc = zmq_getsockopt (bind_socket, ZMQ_SNDHWM, &val, &placeholder);
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TEST_ASSERT_EQUAL_INT (0, rc);
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TEST_ASSERT_EQUAL_INT (5, val);
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int send_count = 0;
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while (send_count < MAX_SENDS
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&& zmq_send (bind_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
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++send_count;
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TEST_ASSERT_EQUAL_INT (6, send_count);
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test_context_socket_close (bind_socket);
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test_context_socket_close (connect_socket);
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}
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int send_until_wouldblock (void *socket_)
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{
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int send_count = 0;
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while (send_count < MAX_SENDS
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&& zmq_send (socket_, &send_count, sizeof (send_count), ZMQ_DONTWAIT)
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== sizeof (send_count)) {
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++send_count;
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}
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return send_count;
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}
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int test_fill_up_to_hwm (void *socket_, int sndhwm_)
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{
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int send_count = send_until_wouldblock (socket_);
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fprintf (stderr, "sndhwm==%i, send_count==%i\n", sndhwm_, send_count);
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TEST_ASSERT_LESS_OR_EQUAL_INT (sndhwm_ + 1, send_count);
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TEST_ASSERT_GREATER_THAN_INT (sndhwm_ / 10, send_count);
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return send_count;
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}
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void test_decrease_when_full ()
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{
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int rc;
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void *bind_socket = test_context_socket (ZMQ_PUSH);
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void *connect_socket = test_context_socket (ZMQ_PULL);
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int val = 1;
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rc = zmq_setsockopt (connect_socket, ZMQ_RCVHWM, &val, sizeof (val));
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TEST_ASSERT_EQUAL_INT (0, rc);
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int sndhwm = 100;
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rc = zmq_setsockopt (bind_socket, ZMQ_SNDHWM, &sndhwm, sizeof (sndhwm));
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TEST_ASSERT_EQUAL_INT (0, rc);
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zmq_bind (bind_socket, "inproc://a");
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zmq_connect (connect_socket, "inproc://a");
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// we must wait for the connect to succeed here, unfortunately we don't
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// have monitoring events for inproc, so we just hope SETTLE_TIME suffices
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msleep (SETTLE_TIME);
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// Fill up to hwm
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int send_count = test_fill_up_to_hwm (bind_socket, sndhwm);
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// Decrease snd hwm
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sndhwm = 70;
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rc = zmq_setsockopt (bind_socket, ZMQ_SNDHWM, &sndhwm, sizeof (sndhwm));
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TEST_ASSERT_EQUAL_INT (0, rc);
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int sndhwm_read = 0;
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size_t sndhwm_read_size = sizeof (sndhwm_read);
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rc =
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zmq_getsockopt (bind_socket, ZMQ_SNDHWM, &sndhwm_read, &sndhwm_read_size);
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TEST_ASSERT_EQUAL_INT (0, rc);
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TEST_ASSERT_EQUAL_INT (sndhwm, sndhwm_read);
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msleep (SETTLE_TIME);
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// Read out all data (should get up to previous hwm worth so none were dropped)
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int read_count = 0;
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int read_data = 0;
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while (
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read_count < MAX_SENDS
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&& zmq_recv (connect_socket, &read_data, sizeof (read_data), ZMQ_DONTWAIT)
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== sizeof (read_data)) {
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TEST_ASSERT_EQUAL_INT (read_data, read_count);
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++read_count;
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}
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TEST_ASSERT_EQUAL_INT (send_count, read_count);
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// Give io thread some time to catch up
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msleep (SETTLE_TIME);
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// Fill up to new hwm
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test_fill_up_to_hwm (bind_socket, sndhwm);
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test_context_socket_close (bind_socket);
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test_context_socket_close (connect_socket);
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}
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int main ()
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{
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setup_test_environment ();
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UNITY_BEGIN ();
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RUN_TEST (test_change_before_connected);
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RUN_TEST (test_change_after_connected);
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RUN_TEST (test_decrease_when_full);
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return UNITY_END ();
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}
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