1/*
2 Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
3
4 This file is part of libzmq, the ZeroMQ core engine in C++.
5
6 libzmq is free software; you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License (LGPL) as published
8 by the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 As a special exception, the Contributors give you permission to link
12 this library with independent modules to produce an executable,
13 regardless of the license terms of these independent modules, and to
14 copy and distribute the resulting executable under terms of your choice,
15 provided that you also meet, for each linked independent module, the
16 terms and conditions of the license of that module. An independent
17 module is a module which is not derived from or based on this library.
18 If you modify this library, you must extend this exception to your
19 version of the library.
20
21 libzmq is distributed in the hope that it will be useful, but WITHOUT
22 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
24 License for more details.
25
26 You should have received a copy of the GNU Lesser General Public License
27 along with this program. If not, see <http://www.gnu.org/licenses/>.
28*/
29
30#include "testutil.hpp"
31#include "testutil_unity.hpp"
32
33#include <stdlib.h>
34#include <string.h>
35
36SETUP_TEARDOWN_TESTCONTEXT
37
38// XSI vector I/O
39#if defined ZMQ_HAVE_UIO
40#include <sys/uio.h>
41#else
42struct iovec
43{
44 void *iov_base;
45 size_t iov_len;
46};
47#endif
48
49static void do_check (void *sb_, void *sc_, size_t msg_size_)
50{
51 TEST_ASSERT_NOT_NULL (sb_);
52 TEST_ASSERT_NOT_NULL (sc_);
53 TEST_ASSERT_GREATER_THAN (0, msg_size_);
54
55 const char msg_val = '1';
56 const int num_messages = 10;
57 size_t send_count, recv_count;
58
59 send_count = recv_count = num_messages;
60
61 char *ref_msg = static_cast<char *> (malloc (msg_size_));
62 TEST_ASSERT_NOT_NULL (ref_msg);
63 memset (ref_msg, msg_val, msg_size_);
64
65 // zmq_sendiov(3) as a single multi-part send
66 struct iovec send_iov[num_messages];
67 char *buf = static_cast<char *> (malloc (msg_size_ * num_messages));
68
69 for (int i = 0; i < num_messages; i++) {
70 send_iov[i].iov_base = &buf[i * msg_size_];
71 send_iov[i].iov_len = msg_size_;
72 memcpy (send_iov[i].iov_base, ref_msg, msg_size_);
73
74 // TODO: this assertion only checks if memcpy behaves as expected... remove this or assert something else?
75 TEST_ASSERT_EQUAL_HEX8_ARRAY (ref_msg, send_iov[i].iov_base, msg_size_);
76 }
77
78 // Test errors - zmq_recviov - null socket
79 TEST_ASSERT_FAILURE_ERRNO (
80 ENOTSOCK, zmq_sendiov (NULL, send_iov, send_count, ZMQ_SNDMORE));
81 // Test errors - zmq_recviov - invalid send count
82 TEST_ASSERT_FAILURE_ERRNO (EINVAL, zmq_sendiov (sc_, send_iov, 0, 0));
83 // Test errors - zmq_recviov - null iovec
84 TEST_ASSERT_FAILURE_ERRNO (EINVAL, zmq_sendiov (sc_, NULL, send_count, 0));
85
86 // Test success
87
88 // The zmq_sendiov(3) API method does not follow the same semantics as
89 // zmq_recviov(3); the latter returns the count of messages sent, rightly
90 // so, whilst the former sends the number of bytes successfully sent from
91 // the last message, which does not hold much sense from a batch send
92 // perspective; hence the assert checks if the result is same as msg_size.
93 TEST_ASSERT_EQUAL_INT (
94 (int) msg_size_, TEST_ASSERT_SUCCESS_ERRNO (
95 zmq_sendiov (sc_, send_iov, send_count, ZMQ_SNDMORE)));
96
97 // zmq_recviov(3) single-shot
98 struct iovec recv_iov[num_messages];
99
100 // Test errors - zmq_recviov - null socket
101 TEST_ASSERT_FAILURE_ERRNO (ENOTSOCK,
102 zmq_recviov (NULL, recv_iov, &recv_count, 0));
103 // Test error - zmq_recviov - invalid receive count
104 TEST_ASSERT_FAILURE_ERRNO (EINVAL, zmq_recviov (sb_, recv_iov, NULL, 0));
105 size_t invalid_recv_count = 0;
106 TEST_ASSERT_FAILURE_ERRNO (
107 EINVAL, zmq_recviov (sb_, recv_iov, &invalid_recv_count, 0));
108 // Test error - zmq_recviov - null iovec
109 TEST_ASSERT_FAILURE_ERRNO (EINVAL, zmq_recviov (sb_, NULL, &recv_count, 0));
110
111 // Test success
112 TEST_ASSERT_EQUAL_INT (
113 num_messages,
114 TEST_ASSERT_SUCCESS_ERRNO (zmq_recviov (sb_, recv_iov, &recv_count, 0)));
115
116 for (int i = 0; i < num_messages; i++) {
117 TEST_ASSERT_NOT_NULL (recv_iov[i].iov_base);
118 TEST_ASSERT_EQUAL_STRING_LEN (ref_msg, recv_iov[i].iov_base, msg_size_);
119 free (recv_iov[i].iov_base);
120 }
121
122 TEST_ASSERT_EQUAL_INT (send_count, recv_count);
123 free (ref_msg);
124 free (buf);
125}
126
127void test_iov ()
128{
129 void *sb = test_context_socket (ZMQ_PULL);
130 TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (sb, "inproc://a"));
131
132 msleep (SETTLE_TIME);
133
134 void *sc = test_context_socket (ZMQ_PUSH);
135 TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sc, "inproc://a"));
136
137 // message bigger than VSM max
138 do_check (sb, sc, 100);
139
140 // message smaller than VSM max
141 do_check (sb, sc, 10);
142
143 test_context_socket_close (sc);
144 test_context_socket_close (sb);
145}
146
147int main ()
148{
149 setup_test_environment ();
150
151 UNITY_BEGIN ();
152 RUN_TEST (test_iov);
153 return UNITY_END ();
154}
155