mirror of
https://github.com/zeromq/libzmq.git
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305 lines
10 KiB
C++
305 lines
10 KiB
C++
/*
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Copyright (c) 2007-2017 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 <string.h>
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// NOTE: on OSX the endpoint returned by ZMQ_LAST_ENDPOINT may be quite long,
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// ensure we have extra space for that:
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#define SOCKET_STRING_LEN (MAX_SOCKET_STRING * 4)
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SETUP_TEARDOWN_TESTCONTEXT
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int test_defaults (int send_hwm_, int msg_cnt_, const char *endpoint_)
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{
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char pub_endpoint[SOCKET_STRING_LEN];
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// Set up and bind XPUB socket
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void *pub_socket = test_context_socket (ZMQ_XPUB);
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test_bind (pub_socket, endpoint_, pub_endpoint, sizeof pub_endpoint);
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// Set up and connect SUB socket
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void *sub_socket = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub_socket, pub_endpoint));
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//set a hwm on publisher
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub_socket, ZMQ_SNDHWM, &send_hwm_, sizeof (send_hwm_)));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub_socket, ZMQ_SUBSCRIBE, 0, 0));
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// Wait before starting TX operations till 1 subscriber has subscribed
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// (in this test there's 1 subscriber only)
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const char subscription_to_all_topics[] = {1, 0};
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recv_string_expect_success (pub_socket, subscription_to_all_topics, 0);
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// Send until we reach "mute" state
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int send_count = 0;
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while (send_count < msg_cnt_
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&& zmq_send (pub_socket, "test message", 13, ZMQ_DONTWAIT) == 13)
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++send_count;
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TEST_ASSERT_EQUAL_INT (send_hwm_, send_count);
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msleep (SETTLE_TIME);
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// Now receive all sent messages
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int recv_count = 0;
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char dummybuff[64];
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while (13 == zmq_recv (sub_socket, &dummybuff, 64, ZMQ_DONTWAIT)) {
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++recv_count;
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}
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TEST_ASSERT_EQUAL_INT (send_hwm_, recv_count);
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// Clean up
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test_context_socket_close (sub_socket);
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test_context_socket_close (pub_socket);
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return recv_count;
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}
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int receive (void *socket_, int *is_termination_)
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{
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int recv_count = 0;
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*is_termination_ = 0;
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// Now receive all sent messages
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char buffer[255];
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int len;
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while ((len = zmq_recv (socket_, buffer, sizeof (buffer), 0)) >= 0) {
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++recv_count;
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if (len == 3 && strncmp (buffer, "end", len) == 0) {
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*is_termination_ = 1;
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return recv_count;
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}
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}
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return recv_count;
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}
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int test_blocking (int send_hwm_, int msg_cnt_, const char *endpoint_)
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{
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char pub_endpoint[SOCKET_STRING_LEN];
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// Set up bind socket
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void *pub_socket = test_context_socket (ZMQ_XPUB);
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test_bind (pub_socket, endpoint_, pub_endpoint, sizeof pub_endpoint);
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// Set up connect socket
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void *sub_socket = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub_socket, pub_endpoint));
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//set a hwm on publisher
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub_socket, ZMQ_SNDHWM, &send_hwm_, sizeof (send_hwm_)));
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int wait = 1;
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub_socket, ZMQ_XPUB_NODROP, &wait, sizeof (wait)));
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int timeout_ms = 10;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (
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sub_socket, ZMQ_RCVTIMEO, &timeout_ms, sizeof (timeout_ms)));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub_socket, ZMQ_SUBSCRIBE, 0, 0));
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// Wait before starting TX operations till 1 subscriber has subscribed
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// (in this test there's 1 subscriber only)
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const uint8_t subscription_to_all_topics[] = {1};
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recv_array_expect_success (pub_socket, subscription_to_all_topics, 0);
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// Send until we block
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int send_count = 0;
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int recv_count = 0;
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int blocked_count = 0;
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int is_termination = 0;
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while (send_count < msg_cnt_) {
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const int rc = zmq_send (pub_socket, NULL, 0, ZMQ_DONTWAIT);
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if (rc == 0) {
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++send_count;
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} else if (-1 == rc) {
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// if the PUB socket blocks due to HWM, errno should be EAGAIN:
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blocked_count++;
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, -1);
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recv_count += receive (sub_socket, &is_termination);
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}
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}
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// if send_hwm_ < msg_cnt_, we should block at least once:
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char counts_string[128];
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snprintf (counts_string, sizeof counts_string - 1,
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"sent = %i, received = %i", send_count, recv_count);
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TEST_ASSERT_GREATER_THAN_INT_MESSAGE (0, blocked_count, counts_string);
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// dequeue SUB socket again, to make sure XPUB has space to send the termination message
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recv_count += receive (sub_socket, &is_termination);
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// send termination message
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send_string_expect_success (pub_socket, "end", 0);
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// now block on the SUB side till we get the termination message
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while (is_termination == 0)
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recv_count += receive (sub_socket, &is_termination);
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// remove termination message from the count:
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recv_count--;
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TEST_ASSERT_EQUAL_INT (send_count, recv_count);
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// Clean up
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test_context_socket_close (sub_socket);
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test_context_socket_close (pub_socket);
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return recv_count;
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}
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// hwm should apply to the messages that have already been received
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// with hwm 11024: send 9999 msg, receive 9999, send 1100, receive 1100
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void test_reset_hwm ()
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{
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const int first_count = 9999;
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const int second_count = 1100;
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int hwm = 11024;
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char my_endpoint[SOCKET_STRING_LEN];
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// Set up bind socket
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void *pub_socket = test_context_socket (ZMQ_PUB);
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub_socket, ZMQ_SNDHWM, &hwm, sizeof (hwm)));
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bind_loopback_ipv4 (pub_socket, my_endpoint, MAX_SOCKET_STRING);
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// Set up connect socket
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void *sub_socket = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub_socket, ZMQ_RCVHWM, &hwm, sizeof (hwm)));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub_socket, my_endpoint));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub_socket, ZMQ_SUBSCRIBE, 0, 0));
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msleep (SETTLE_TIME);
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// Send messages
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int send_count = 0;
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while (send_count < first_count
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&& zmq_send (pub_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
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++send_count;
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TEST_ASSERT_EQUAL_INT (first_count, send_count);
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msleep (SETTLE_TIME);
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// Now receive all sent messages
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int recv_count = 0;
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while (0 == zmq_recv (sub_socket, NULL, 0, ZMQ_DONTWAIT)) {
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++recv_count;
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}
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TEST_ASSERT_EQUAL_INT (first_count, recv_count);
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msleep (SETTLE_TIME);
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// Send messages
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send_count = 0;
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while (send_count < second_count
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&& zmq_send (pub_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
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++send_count;
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TEST_ASSERT_EQUAL_INT (second_count, send_count);
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msleep (SETTLE_TIME);
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// Now receive all sent messages
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recv_count = 0;
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while (0 == zmq_recv (sub_socket, NULL, 0, ZMQ_DONTWAIT)) {
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++recv_count;
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}
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TEST_ASSERT_EQUAL_INT (second_count, recv_count);
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// Clean up
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test_context_socket_close (sub_socket);
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test_context_socket_close (pub_socket);
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}
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void test_defaults_large (const char *bind_endpoint_)
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{
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// send 1000 msg on hwm 1000, receive 1000
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TEST_ASSERT_EQUAL_INT (1000, test_defaults (1000, 1000, bind_endpoint_));
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}
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void test_defaults_small (const char *bind_endpoint_)
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{
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// send 1000 msg on hwm 100, receive 100
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TEST_ASSERT_EQUAL_INT (100, test_defaults (100, 100, bind_endpoint_));
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}
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void test_blocking (const char *bind_endpoint_)
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{
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// send 6000 msg on hwm 2000, drops above hwm, only receive hwm:
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TEST_ASSERT_EQUAL_INT (6000, test_blocking (2000, 6000, bind_endpoint_));
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}
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#define DEFINE_REGULAR_TEST_CASES(name, bind_endpoint) \
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void test_defaults_large_##name () \
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{ \
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test_defaults_large (bind_endpoint); \
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} \
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\
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void test_defaults_small_##name () \
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{ \
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test_defaults_small (bind_endpoint); \
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} \
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\
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void test_blocking_##name () { test_blocking (bind_endpoint); }
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#define RUN_REGULAR_TEST_CASES(name) \
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RUN_TEST (test_defaults_large_##name); \
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RUN_TEST (test_defaults_small_##name); \
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RUN_TEST (test_blocking_##name)
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DEFINE_REGULAR_TEST_CASES (tcp, "tcp://127.0.0.1:*")
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DEFINE_REGULAR_TEST_CASES (inproc, "inproc://a")
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#if !defined(ZMQ_HAVE_WINDOWS) && !defined(ZMQ_HAVE_GNU)
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DEFINE_REGULAR_TEST_CASES (ipc, "ipc://*")
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#endif
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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_REGULAR_TEST_CASES (tcp);
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RUN_REGULAR_TEST_CASES (inproc);
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#if !defined(ZMQ_HAVE_WINDOWS) && !defined(ZMQ_HAVE_GNU)
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RUN_REGULAR_TEST_CASES (ipc);
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#endif
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RUN_TEST (test_reset_hwm);
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return UNITY_END ();
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}
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