mirror of
https://github.com/zeromq/libzmq.git
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339 lines
12 KiB
C++
339 lines
12 KiB
C++
/*
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Copyright (c) 2018 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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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 uint8_t unsubscribe_a_msg[] = {0, 'A'};
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const uint8_t subscribe_a_msg[] = {1, 'A'};
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const uint8_t subscribe_b_msg[] = {1, 'B'};
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const char test_endpoint[] = "inproc://soname";
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const char topic_a[] = "A";
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const char topic_b[] = "B";
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void test_xpub_verbose_one_sub ()
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{
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void *pub = test_context_socket (ZMQ_XPUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (pub, test_endpoint));
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void *sub = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub, test_endpoint));
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// Subscribe for A
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_a, 1));
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// Receive subscriptions from subscriber
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// Subscribe socket for B instead
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_b, 1));
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// Receive subscriptions from subscriber
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recv_array_expect_success (pub, subscribe_b_msg, 0);
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// Subscribe again for A again
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_a, 1));
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// This time it is duplicated, so it will be filtered out
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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int verbose = 1;
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub, ZMQ_XPUB_VERBOSE, &verbose, sizeof (int)));
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// Subscribe socket for A again
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_a, 1));
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// This time with VERBOSE the duplicated sub will be received
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// Sending A message and B Message
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send_string_expect_success (pub, topic_a, 0);
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send_string_expect_success (pub, topic_b, 0);
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recv_string_expect_success (sub, topic_a, 0);
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recv_string_expect_success (sub, topic_b, 0);
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// Clean up.
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test_context_socket_close (pub);
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test_context_socket_close (sub);
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}
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void create_xpub_with_2_subs (void **pub_, void **sub0_, void **sub1_)
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{
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*pub_ = test_context_socket (ZMQ_XPUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (*pub_, test_endpoint));
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*sub0_ = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (*sub0_, test_endpoint));
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*sub1_ = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (*sub1_, test_endpoint));
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}
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void create_duplicate_subscription (void *pub_, void *sub0_, void *sub1_)
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{
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// Subscribe for A
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub0_, ZMQ_SUBSCRIBE, topic_a, 1));
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// Receive subscriptions from subscriber
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recv_array_expect_success (pub_, subscribe_a_msg, 0);
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// Subscribe again for A on the other socket
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub1_, ZMQ_SUBSCRIBE, topic_a, 1));
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// This time it is duplicated, so it will be filtered out by XPUB
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub_, NULL, 0, ZMQ_DONTWAIT));
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}
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void test_xpub_verbose_two_subs ()
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{
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void *pub, *sub0, *sub1;
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create_xpub_with_2_subs (&pub, &sub0, &sub1);
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create_duplicate_subscription (pub, sub0, sub1);
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// Subscribe socket for B instead
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub0, ZMQ_SUBSCRIBE, topic_b, 1));
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// Receive subscriptions from subscriber
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recv_array_expect_success (pub, subscribe_b_msg, 0);
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int verbose = 1;
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub, ZMQ_XPUB_VERBOSE, &verbose, sizeof (int)));
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// Subscribe socket for A again
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, topic_a, 1));
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// This time with VERBOSE the duplicated sub will be received
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// Sending A message and B Message
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send_string_expect_success (pub, topic_a, 0);
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send_string_expect_success (pub, topic_b, 0);
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recv_string_expect_success (sub0, topic_a, 0);
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recv_string_expect_success (sub1, topic_a, 0);
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recv_string_expect_success (sub0, topic_b, 0);
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// Clean up.
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test_context_socket_close (pub);
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test_context_socket_close (sub0);
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test_context_socket_close (sub1);
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}
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void test_xpub_verboser_one_sub ()
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{
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// Create a publisher
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void *pub = test_context_socket (ZMQ_XPUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (pub, test_endpoint));
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// Create a subscriber
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void *sub = test_context_socket (ZMQ_SUB);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub, test_endpoint));
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// Unsubscribe for A, does not exist yet
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Does not exist, so it will be filtered out by XSUB
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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// Subscribe for A
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_a, 1));
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// Receive subscriptions from subscriber
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// Subscribe again for A again, XSUB will increase refcount
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_a, 1));
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// This time it is duplicated, so it will be filtered out by XPUB
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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// Unsubscribe for A, this time it exists in XPUB
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// XSUB refcounts and will not actually send unsub to PUB until the number
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// of unsubs match the earlier subs
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Receive unsubscriptions from subscriber
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recv_array_expect_success (pub, unsubscribe_a_msg, 0);
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// XSUB only sends the last and final unsub, so XPUB will only receive 1
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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// Unsubscribe for A, does not exist anymore
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Does not exist, so it will be filtered out by XSUB
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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int verbose = 1;
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub, ZMQ_XPUB_VERBOSER, &verbose, sizeof (int)));
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// Subscribe socket for A again
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (sub, ZMQ_SUBSCRIBE, topic_a, 1));
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// Receive subscriptions from subscriber, did not exist anymore
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// Sending A message to make sure everything still works
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send_string_expect_success (pub, topic_a, 0);
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recv_string_expect_success (sub, topic_a, 0);
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// Unsubscribe for A, this time it exists
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Receive unsubscriptions from subscriber
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recv_array_expect_success (pub, unsubscribe_a_msg, 0);
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// Unsubscribe for A again, it does not exist anymore so XSUB will filter
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// XSUB only sends unsub if it matched it in its trie, IOW: it will only
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// send it if it existed in the first place even with XPUB_VERBBOSER
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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// Clean up.
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test_context_socket_close (pub);
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test_context_socket_close (sub);
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}
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void test_xpub_verboser_two_subs ()
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{
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void *pub, *sub0, *sub1;
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create_xpub_with_2_subs (&pub, &sub0, &sub1);
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create_duplicate_subscription (pub, sub0, sub1);
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// Unsubscribe for A, this time it exists in XPUB
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub0, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// sub1 is still subscribed, so no notification
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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// Unsubscribe the second socket to trigger the notification
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub1, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Receive unsubscriptions since all sockets are gone
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recv_array_expect_success (pub, unsubscribe_a_msg, 0);
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// Make really sure there is only one notification
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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int verbose = 1;
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (pub, ZMQ_XPUB_VERBOSER, &verbose, sizeof (int)));
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// Subscribe socket for A again
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub0, ZMQ_SUBSCRIBE, topic_a, 1));
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// Subscribe socket for A again
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub1, ZMQ_SUBSCRIBE, topic_a, 1));
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// Receive subscriptions from subscriber, did not exist anymore
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// VERBOSER is set, so subs from both sockets are received
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recv_array_expect_success (pub, subscribe_a_msg, 0);
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// Sending A message to make sure everything still works
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send_string_expect_success (pub, topic_a, 0);
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recv_string_expect_success (sub0, topic_a, 0);
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recv_string_expect_success (sub1, topic_a, 0);
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// Unsubscribe for A
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub1, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Receive unsubscriptions from first subscriber due to VERBOSER
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recv_array_expect_success (pub, unsubscribe_a_msg, 0);
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// Unsubscribe for A again from the other socket
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub0, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Receive unsubscriptions from first subscriber due to VERBOSER
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recv_array_expect_success (pub, unsubscribe_a_msg, 0);
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// Unsubscribe again to make sure it gets filtered now
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_setsockopt (sub1, ZMQ_UNSUBSCRIBE, topic_a, 1));
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// Unmatched, so XSUB filters even with VERBOSER
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TEST_ASSERT_FAILURE_ERRNO (EAGAIN, zmq_recv (pub, NULL, 0, ZMQ_DONTWAIT));
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// Clean up.
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test_context_socket_close (pub);
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test_context_socket_close (sub0);
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test_context_socket_close (sub1);
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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_xpub_verbose_one_sub);
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RUN_TEST (test_xpub_verbose_two_subs);
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RUN_TEST (test_xpub_verboser_one_sub);
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RUN_TEST (test_xpub_verboser_two_subs);
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return UNITY_END ();
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}
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