1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
4 */
5
6 #include <errno.h>
7
8 #define TST_NO_DEFAULT_MAIN
9
10 #include "tst_test.h"
11 #include "tst_timer.h"
12 #include "tst_clocks.h"
13 #include "lapi/posix_clocks.h"
14
15 static struct timespec start_time, stop_time;
16 static clockid_t clock_id;
17
tst_clock_name(clockid_t clk_id)18 const char *tst_clock_name(clockid_t clk_id)
19 {
20 switch (clk_id) {
21 case CLOCK_REALTIME:
22 return "CLOCK_REALTIME";
23 case CLOCK_REALTIME_COARSE:
24 return "CLOCK_REALTIME_COARSE";
25 case CLOCK_MONOTONIC:
26 return "CLOCK_MONOTONIC";
27 case CLOCK_MONOTONIC_COARSE:
28 return "CLOCK_MONOTONIC_COARSE";
29 case CLOCK_MONOTONIC_RAW:
30 return "CLOCK_MONOTONIC_RAW";
31 case CLOCK_BOOTTIME:
32 return "CLOCK_BOOTTIME";
33 case CLOCK_PROCESS_CPUTIME_ID:
34 return "CLOCK_PROCESS_CPUTIME_ID";
35 case CLOCK_THREAD_CPUTIME_ID:
36 return "CLOCK_THREAD_CPUTIME_ID";
37 default:
38 return "UNKNOWN/INVALID";
39 }
40 }
41
tst_timer_check(clockid_t clk_id)42 void tst_timer_check(clockid_t clk_id)
43 {
44 if (tst_clock_gettime(clk_id, &start_time)) {
45 if (errno == EINVAL) {
46 tst_brk(TCONF,
47 "Clock id %s(%u) not supported by kernel",
48 tst_clock_name(clk_id), clk_id);
49 return;
50 }
51
52 tst_brk(TBROK | TERRNO, "tst_clock_gettime() failed");
53 }
54 }
55
tst_timer_start(clockid_t clk_id)56 void tst_timer_start(clockid_t clk_id)
57 {
58 clock_id = clk_id;
59
60 if (tst_clock_gettime(clock_id, &start_time))
61 tst_res(TWARN | TERRNO, "tst_clock_gettime() failed");
62 }
63
tst_timer_expired_ms(long long ms)64 int tst_timer_expired_ms(long long ms)
65 {
66 struct timespec cur_time;
67
68 if (tst_clock_gettime(clock_id, &cur_time))
69 tst_res(TWARN | TERRNO, "tst_clock_gettime() failed");
70
71 return tst_timespec_diff_ms(cur_time, start_time) >= ms;
72 }
73
tst_timer_stop(void)74 void tst_timer_stop(void)
75 {
76 if (tst_clock_gettime(clock_id, &stop_time))
77 tst_res(TWARN | TERRNO, "tst_clock_gettime() failed");
78 }
79
tst_timer_elapsed(void)80 struct timespec tst_timer_elapsed(void)
81 {
82 return tst_timespec_diff(stop_time, start_time);
83 }
84