mirror of
https://github.com/zeromq/libzmq.git
synced 2025-11-04 04:10:00 +01:00
625b618776
Problem: Since pull request #1730 was merged, protocol for REQ socket is checked at the session level and this check does not take into account the possibility of a request_id being part of the message. Thus the option ZMQ_REQ_CORRELATE would no longer work. This is now fixed: the possiblity of a 4 bytes integer being present before the delimiter frame is taken into account (whether or not this breaks the REQ/REP RFC is another issue).
137 lines
4.2 KiB
C++
137 lines
4.2 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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int main (void)
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{
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setup_test_environment();
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void *ctx = zmq_ctx_new ();
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assert (ctx);
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void *req = zmq_socket (ctx, ZMQ_REQ);
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assert (req);
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void *router = zmq_socket (ctx, ZMQ_ROUTER);
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assert (router);
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int enabled = 1;
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int rc = zmq_setsockopt (req, ZMQ_REQ_CORRELATE, &enabled, sizeof (int));
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assert (rc == 0);
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int rcvtimeo = 100;
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rc = zmq_setsockopt (req, ZMQ_RCVTIMEO, &rcvtimeo, sizeof (int));
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assert (rc == 0);
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rc = zmq_connect (req, "tcp://localhost:5555");
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assert (rc == 0);
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rc = zmq_bind (router, "tcp://127.0.0.1:5555");
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assert (rc == 0);
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// Send a multi-part request.
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s_send_seq (req, "ABC", "DEF", SEQ_END);
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zmq_msg_t msg;
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zmq_msg_init (&msg);
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// Receive peer identity
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rc = zmq_msg_recv (&msg, router, 0);
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assert (rc != -1);
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assert (zmq_msg_size (&msg) > 0);
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zmq_msg_t peer_id_msg;
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zmq_msg_init (&peer_id_msg);
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zmq_msg_copy (&peer_id_msg, &msg);
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int more = 0;
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size_t more_size = sizeof (more);
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rc = zmq_getsockopt (router, ZMQ_RCVMORE, &more, &more_size);
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assert (rc == 0);
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assert (more);
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// Receive request id 1
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rc = zmq_msg_recv (&msg, router, 0);
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assert (rc != -1);
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assert (zmq_msg_size (&msg) == sizeof(uint32_t));
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uint32_t req_id = *static_cast<uint32_t *> (zmq_msg_data (&msg));
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zmq_msg_t req_id_msg;
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zmq_msg_init (&req_id_msg);
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zmq_msg_copy (&req_id_msg, &msg);
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more = 0;
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more_size = sizeof (more);
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rc = zmq_getsockopt (router, ZMQ_RCVMORE, &more, &more_size);
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assert (rc == 0);
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assert (more);
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// Receive the rest.
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s_recv_seq (router, 0, "ABC", "DEF", SEQ_END);
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uint32_t bad_req_id = req_id + 1;
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// Send back a bad reply: wrong req id, 0, data
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zmq_msg_copy (&msg, &peer_id_msg);
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rc = zmq_msg_send (&msg, router, ZMQ_SNDMORE);
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assert (rc != -1);
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zmq_msg_init_data (&msg, &bad_req_id, sizeof (uint32_t), NULL, NULL);
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rc = zmq_msg_send (&msg, router, ZMQ_SNDMORE);
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assert (rc != -1);
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s_send_seq (router, 0, "DATA", SEQ_END);
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// Send back a good reply: good req id, 0, data
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zmq_msg_copy (&msg, &peer_id_msg);
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rc = zmq_msg_send (&msg, router, ZMQ_SNDMORE);
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assert (rc != -1);
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zmq_msg_copy (&msg, &req_id_msg);
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rc = zmq_msg_send (&msg, router, ZMQ_SNDMORE);
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assert (rc != -1);
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s_send_seq (router, 0, "GHI", SEQ_END);
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// Receive reply. If bad reply got through, we wouldn't see
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// this particular data.
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s_recv_seq (req, "GHI", SEQ_END);
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rc = zmq_msg_close (&msg);
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assert (rc == 0);
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rc = zmq_msg_close (&peer_id_msg);
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assert (rc == 0);
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rc = zmq_msg_close (&req_id_msg);
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assert (rc == 0);
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close_zero_linger (req);
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close_zero_linger (router);
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rc = zmq_ctx_term (ctx);
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assert (rc == 0);
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return 0;
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}
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