1 /*
2 * Copyright (c) 2018 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <ztest.h>
8 #include <time.h>
9 #include <unistd.h>
10
11 #define SECS_TO_SLEEP 2
12 #define DURATION_SECS 1
13 #define DURATION_NSECS 0
14 #define PERIOD_SECS 0
15 #define PERIOD_NSECS 100000000
16
17 static int exp_count;
18
handler(union sigval val)19 void handler(union sigval val)
20 {
21 printk("Handler Signal value :%d for %d times\n", val.sival_int,
22 ++exp_count);
23 }
24
test_posix_timer(void)25 void test_posix_timer(void)
26 {
27 int ret;
28 struct sigevent sig = { 0 };
29 timer_t timerid;
30 struct itimerspec value, ovalue;
31 struct timespec ts, te;
32 int64_t nsecs_elapsed, secs_elapsed, total_secs_timer;
33
34 sig.sigev_notify = SIGEV_SIGNAL;
35 sig.sigev_notify_function = handler;
36 sig.sigev_value.sival_int = 20;
37
38 printk("POSIX timer test\n");
39 ret = timer_create(CLOCK_MONOTONIC, &sig, &timerid);
40
41 /*TESTPOINT: Check if timer is created successfully*/
42 zassert_false(ret, "POSIX timer create failed");
43
44 value.it_value.tv_sec = DURATION_SECS;
45 value.it_value.tv_nsec = DURATION_NSECS;
46 value.it_interval.tv_sec = PERIOD_SECS;
47 value.it_interval.tv_nsec = PERIOD_NSECS;
48 ret = timer_settime(timerid, 0, &value, &ovalue);
49 usleep(100 * USEC_PER_MSEC);
50 ret = timer_gettime(timerid, &value);
51 zassert_false(ret, "Failed to get time to expire.");
52
53 if (ret == 0) {
54 printk("Timer fires every %d secs and %d nsecs\n",
55 (int) value.it_interval.tv_sec,
56 (int) value.it_interval.tv_nsec);
57 printk("Time remaining to fire %d secs and %d nsecs\n",
58 (int) value.it_value.tv_sec,
59 (int) value.it_value.tv_nsec);
60 }
61
62 clock_gettime(CLOCK_MONOTONIC, &ts);
63
64 /*TESTPOINT: Check if timer has started successfully*/
65 zassert_false(ret, "POSIX timer failed to start");
66
67 sleep(SECS_TO_SLEEP);
68
69 clock_gettime(CLOCK_MONOTONIC, &te);
70 timer_delete(timerid);
71
72 if (te.tv_nsec >= ts.tv_nsec) {
73 secs_elapsed = te.tv_sec - ts.tv_sec;
74 nsecs_elapsed = te.tv_nsec - ts.tv_nsec;
75 } else {
76 nsecs_elapsed = NSEC_PER_SEC + te.tv_nsec - ts.tv_nsec;
77 secs_elapsed = (te.tv_sec - ts.tv_sec - 1);
78 }
79
80 total_secs_timer = (value.it_value.tv_sec * NSEC_PER_SEC +
81 value.it_value.tv_nsec + (uint64_t) exp_count *
82 (value.it_interval.tv_sec * NSEC_PER_SEC +
83 value.it_interval.tv_nsec)) / NSEC_PER_SEC;
84
85 /*TESTPOINT: Check if POSIX timer test passed*/
86 zassert_equal(total_secs_timer, secs_elapsed,
87 "POSIX timer test has failed");
88 }
89
