1 /*
2 * Copyright (c) 2018 Intel Corporation
3 * Copyright (c) 2023, Meta
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7 #include <sys/time.h>
8 #include <time.h>
9 #include <unistd.h>
10
11 #include <zephyr/ztest.h>
12 #include <zephyr/logging/log.h>
13
ts_to_ns(const struct timespec * ts)14 static inline int64_t ts_to_ns(const struct timespec *ts)
15 {
16 return ts->tv_sec * NSEC_PER_SEC + ts->tv_nsec;
17 }
18
tv_to_ts(const struct timeval * tv,struct timespec * ts)19 static inline void tv_to_ts(const struct timeval *tv, struct timespec *ts)
20 {
21 ts->tv_sec = tv->tv_sec;
22 ts->tv_nsec = tv->tv_usec * NSEC_PER_USEC;
23 }
24
25 #define _tp_op(_a, _b, _op) (ts_to_ns(_a) _op ts_to_ns(_b))
26
27 #define _decl_op(_type, _name, _op) \
28 static inline _type _name(const struct timespec *_a, const struct timespec *_b) \
29 { \
30 return _tp_op(_a, _b, _op); \
31 }
32
33 _decl_op(bool, tp_ge, >=); /* a >= b */
34
ZTEST(clock,test_gettimeofday)35 ZTEST(clock, test_gettimeofday)
36 {
37 struct timeval tv;
38 struct timespec ts;
39 struct timespec rts;
40
41 if (false) {
42 /* undefined behaviour */
43 errno = 0;
44 zassert_equal(gettimeofday(NULL, NULL), -1);
45 zassert_equal(errno, EINVAL);
46 }
47
48 /* Validate gettimeofday API */
49 zassert_ok(gettimeofday(&tv, NULL));
50 zassert_ok(clock_gettime(CLOCK_REALTIME, &rts));
51
52 /* TESTPOINT: Check if time obtained from
53 * gettimeofday is same or more than obtained
54 * from clock_gettime
55 */
56 tv_to_ts(&tv, &ts);
57 zassert_true(tp_ge(&rts, &ts));
58 }
59
60 ZTEST_SUITE(clock, NULL, NULL, NULL, NULL, NULL);
61
