libzmq/tests/test_peer.cpp
Doron Somech 70bc7dd925 problem: zeromq doesn't has a thread-safe peer to peer socket
Solution: a new socket type, called PEER. Very similar to SERVER, but can only connect to other PEERs. Also a new zmq_connect_peer method, that connect and return a routing-id in thread-safe and atomic operation
2020-02-09 23:20:14 +02:00

114 lines
3.5 KiB
C++

/*
Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
This file is part of libzmq, the ZeroMQ core engine in C++.
libzmq is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
As a special exception, the Contributors give you permission to link
this library with independent modules to produce an executable,
regardless of the license terms of these independent modules, and to
copy and distribute the resulting executable under terms of your choice,
provided that you also meet, for each linked independent module, the
terms and conditions of the license of that module. An independent
module is a module which is not derived from or based on this library.
If you modify this library, you must extend this exception to your
version of the library.
libzmq is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "testutil.hpp"
#include "testutil_unity.hpp"
SETUP_TEARDOWN_TESTCONTEXT
void test_peer ()
{
size_t len = MAX_SOCKET_STRING;
char my_endpoint[MAX_SOCKET_STRING];
void *peer1 = test_context_socket (ZMQ_PEER);
bind_loopback (peer1, false, my_endpoint, len);
void *peer2 = test_context_socket (ZMQ_PEER);
uint32_t peer1_routing_id = zmq_connect_peer (peer2, my_endpoint);
TEST_ASSERT_NOT_EQUAL (0, peer1_routing_id);
{
zmq_msg_t msg;
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init_size (&msg, 1));
char *data = static_cast<char *> (zmq_msg_data (&msg));
data[0] = 1;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_msg_set_routing_id (&msg, peer1_routing_id));
int rc = zmq_msg_send (&msg, peer2, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
}
uint32_t peer2_routing_id;
{
zmq_msg_t msg;
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&msg));
int rc = TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&msg, peer1, 0));
TEST_ASSERT_EQUAL_INT (1, rc);
peer2_routing_id = zmq_msg_routing_id (&msg);
TEST_ASSERT_NOT_EQUAL (0, peer2_routing_id);
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&msg));
}
{
zmq_msg_t msg;
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init_size (&msg, 1));
char *data = static_cast<char *> (zmq_msg_data (&msg));
data[0] = 2;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_msg_set_routing_id (&msg, peer2_routing_id));
int rc = zmq_msg_send (&msg, peer1, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
}
{
zmq_msg_t msg;
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&msg));
int rc = zmq_msg_recv (&msg, peer2, 0);
TEST_ASSERT_EQUAL_INT (1, rc);
uint32_t routing_id = zmq_msg_routing_id (&msg);
TEST_ASSERT_EQUAL_UINT32 (peer1_routing_id, routing_id);
TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&msg));
}
test_context_socket_close (peer1);
test_context_socket_close (peer2);
}
int main (void)
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_TEST (test_peer);
return UNITY_END ();
}