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https://github.com/zeromq/libzmq.git
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e4539778a4
Solution: - Add check for the [count] parameter in zmq_sendiov() and zmq_recviov() - Use and add test for zmq_sendiov() in tests/test_iov.cpp - Add error state tests for zmq_sendiov() in tests/test_iov.cpp - Add error state tests for zmq_recviov() in tests/test_iov.cpp - Cleanup tests/test_iov.cpp for style, consistency and clarity - Generally improve test coverage for both API methods Hat-tip: @somdoron, @bluca
158 lines
4.9 KiB
C++
158 lines
4.9 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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// XSI vector I/O
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#if defined ZMQ_HAVE_UIO
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#include <sys/uio.h>
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#else
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struct iovec {
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void *iov_base;
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size_t iov_len;
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};
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#endif
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void do_check(void* sb, void* sc, size_t msg_size)
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{
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assert (sb && sc && msg_size > 0);
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int rc = 0;
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const char msg_val = '1';
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const int num_messages = 10;
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size_t send_count, recv_count;
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send_count = recv_count = num_messages;
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char *ref_msg = (char *) malloc (msg_size);
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assert (ref_msg);
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memset (ref_msg, msg_val, msg_size);
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// zmq_sendiov(3) as a single multi-part send
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struct iovec send_iov[num_messages];
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char *buf = (char *) malloc (msg_size * num_messages);
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for (int i = 0; i < num_messages; i++)
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{
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send_iov[i].iov_base = &buf[i * msg_size];
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send_iov[i].iov_len = msg_size;
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memcpy (send_iov[i].iov_base, ref_msg, msg_size);
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assert (memcmp (ref_msg, send_iov[i].iov_base, msg_size) == 0);
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}
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// Test errors - zmq_recviov - null socket
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rc = zmq_sendiov (NULL, send_iov, send_count, ZMQ_SNDMORE);
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assert (rc == -1 && errno == ENOTSOCK);
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// Test errors - zmq_recviov - invalid send count
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rc = zmq_sendiov (sc, send_iov, 0, 0);
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assert (rc == -1 && errno == EINVAL);
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// Test errors - zmq_recviov - null iovec
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rc = zmq_sendiov (sc, NULL, send_count, 0);
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assert (rc == -1 && errno == EINVAL);
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// Test success
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rc = zmq_sendiov (sc, send_iov, send_count, ZMQ_SNDMORE);
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// The zmq_sendiov(3) API method does not follow the same semantics as
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// zmq_recviov(3); the latter returns the count of messages sent, rightly
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// so, whilst the former sends the number of bytes successfully sent from
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// the last message, which does not hold much sense from a batch send
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// perspective; hence the assert checks if rc is same as msg_size.
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assert ((size_t)rc == msg_size);
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// zmq_recviov(3) single-shot
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struct iovec recv_iov[num_messages];
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// Test errors - zmq_recviov - null socket
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rc = zmq_recviov (NULL, recv_iov, &recv_count, 0);
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assert (rc == -1 && errno == ENOTSOCK);
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// Test error - zmq_recviov - invalid receive count
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rc = zmq_recviov (sb, recv_iov, NULL, 0);
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assert (rc == -1 && errno == EINVAL);
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size_t invalid_recv_count = 0;
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rc = zmq_recviov (sb, recv_iov, &invalid_recv_count, 0);
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assert (rc == -1 && errno == EINVAL);
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// Test error - zmq_recviov - null iovec
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rc = zmq_recviov (sb, NULL, &recv_count, 0);
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assert (rc == -1 && errno == EINVAL);
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// Test success
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rc = zmq_recviov (sb, recv_iov, &recv_count, 0);
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assert (rc == num_messages);
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for (int i = 0; i < num_messages; i++)
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{
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assert (recv_iov[i].iov_base);
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assert (memcmp (ref_msg, recv_iov[i].iov_base, msg_size) == 0);
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free(recv_iov[i].iov_base);
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}
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assert (send_count == recv_count);
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free (ref_msg);
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free (buf);
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}
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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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int rc;
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void *sb = zmq_socket (ctx, ZMQ_PULL);
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assert (sb);
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rc = zmq_bind (sb, "inproc://a");
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assert (rc == 0);
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msleep (SETTLE_TIME);
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void *sc = zmq_socket (ctx, ZMQ_PUSH);
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rc = zmq_connect (sc, "inproc://a");
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assert (rc == 0);
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// message bigger than VSM max
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do_check (sb, sc, 100);
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// message smaller than VSM max
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do_check (sb, sc, 10);
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rc = zmq_close (sc);
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assert (rc == 0);
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rc = zmq_close (sb);
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assert (rc == 0);
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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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