1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2014 David Herrmann <dh.herrmann@gmail.com>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 static void test_ring(void) {
28 static const char buf[8192];
36 l = ring_peek(&r, vec);
39 s = ring_push(&r, buf, 2048);
41 assert_se(ring_get_size(&r) == 2048);
43 l = ring_peek(&r, vec);
45 assert_se(vec[0].iov_len == 2048);
46 assert_se(!memcmp(vec[0].iov_base, buf, vec[0].iov_len));
47 assert_se(ring_get_size(&r) == 2048);
50 assert_se(ring_get_size(&r) == 0);
52 l = ring_peek(&r, vec);
54 assert_se(ring_get_size(&r) == 0);
56 s = ring_push(&r, buf, 2048);
58 assert_se(ring_get_size(&r) == 2048);
60 l = ring_peek(&r, vec);
62 assert_se(vec[0].iov_len == 2048);
63 assert_se(!memcmp(vec[0].iov_base, buf, vec[0].iov_len));
64 assert_se(ring_get_size(&r) == 2048);
66 s = ring_push(&r, buf, 1);
68 assert_se(ring_get_size(&r) == 2049);
70 l = ring_peek(&r, vec);
72 assert_se(vec[0].iov_len == 2048);
73 assert_se(vec[1].iov_len == 1);
74 assert_se(!memcmp(vec[0].iov_base, buf, vec[0].iov_len));
75 assert_se(!memcmp(vec[1].iov_base, buf, vec[1].iov_len));
76 assert_se(ring_get_size(&r) == 2049);
79 assert_se(ring_get_size(&r) == 1);
81 l = ring_peek(&r, vec);
83 assert_se(vec[0].iov_len == 1);
84 assert_se(!memcmp(vec[0].iov_base, buf, vec[0].iov_len));
85 assert_se(ring_get_size(&r) == 1);
88 assert_se(ring_get_size(&r) == 0);
90 s = ring_push(&r, buf, 2048);
92 assert_se(ring_get_size(&r) == 2048);
94 s = ring_push(&r, buf, 2049);
96 assert_se(ring_get_size(&r) == 4097);
98 l = ring_peek(&r, vec);
100 assert_se(vec[0].iov_len == 4097);
101 assert_se(!memcmp(vec[0].iov_base, buf, vec[0].iov_len));
102 assert_se(ring_get_size(&r) == 4097);
105 assert_se(ring_get_size(&r) == 4096);
107 s = ring_push(&r, buf, 4096);
109 assert_se(ring_get_size(&r) == 8192);
111 l = ring_peek(&r, vec);
113 assert_se(vec[0].iov_len == 8191);
114 assert_se(vec[1].iov_len == 1);
115 assert_se(!memcmp(vec[0].iov_base, buf, vec[0].iov_len));
116 assert_se(!memcmp(vec[1].iov_base, buf, vec[1].iov_len));
117 assert_se(ring_get_size(&r) == 8192);
120 assert_se(ring_get_size(&r) == 0);
123 int main(int argc, char *argv[]) {
124 log_parse_environment();