1 /*
2 * Copyright (c) 2020 Tobias Svehagen
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include "_main.h"
8
ZTEST_F(eventfd,test_read_nonblock)9 ZTEST_F(eventfd, test_read_nonblock)
10 {
11 eventfd_t val = 0;
12 int ret;
13
14 reopen(&fixture->fd, 0, EFD_NONBLOCK);
15
16 ret = eventfd_read(fixture->fd, &val);
17 zassert_true(ret == -1, "read unset ret %d", ret);
18 zassert_true(errno == EAGAIN, "errno %d", errno);
19
20 ret = eventfd_write(fixture->fd, TESTVAL);
21 zassert_true(ret == 0, "write ret %d", ret);
22
23 ret = eventfd_read(fixture->fd, &val);
24 zassert_true(ret == 0, "read set ret %d", ret);
25 zassert_true(val == TESTVAL, "red set val %d", val);
26
27 ret = eventfd_read(fixture->fd, &val);
28 zassert_true(ret == -1, "read subsequent ret %d val %d", ret, val);
29 zassert_true(errno == EAGAIN, "errno %d", errno);
30 }
31
ZTEST_F(eventfd,test_set_poll_event_nonblock)32 ZTEST_F(eventfd, test_set_poll_event_nonblock)
33 {
34 reopen(&fixture->fd, TESTVAL, EFD_NONBLOCK);
35 eventfd_poll_set_common(fixture->fd);
36 }
37
ZTEST_F(eventfd,test_unset_poll_event_nonblock)38 ZTEST_F(eventfd, test_unset_poll_event_nonblock)
39 {
40 reopen(&fixture->fd, 0, EFD_NONBLOCK);
41 eventfd_poll_unset_common(fixture->fd);
42 }
43
ZTEST_F(eventfd,test_overflow)44 ZTEST_F(eventfd, test_overflow)
45 {
46 short event;
47 int ret;
48
49 reopen(&fixture->fd, 0, EFD_NONBLOCK);
50
51 event = POLLOUT;
52 ret = is_blocked(fixture->fd, &event);
53 zassert_equal(ret, 0, "eventfd write blocked with initval == 0");
54
55 ret = eventfd_write(fixture->fd, UINT64_MAX);
56 zassert_equal(ret, -1, "fd == %d", fixture->fd);
57 zassert_equal(errno, EINVAL, "did not get EINVAL");
58
59 ret = eventfd_write(fixture->fd, UINT64_MAX-1);
60 zassert_equal(ret, 0, "fd == %d", fixture->fd);
61
62 event = POLLOUT;
63 ret = is_blocked(fixture->fd, &event);
64 zassert_equal(ret, 1, "eventfd write not blocked with cnt == UINT64_MAX-1");
65
66 ret = eventfd_write(fixture->fd, 1);
67 zassert_equal(ret, -1, "fd == %d", fixture->fd);
68 zassert_equal(errno, EAGAIN, "did not get EINVAL");
69 }
70
