1 /*
2 * Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 */
23
24 #include <errno.h>
25
26 #include "test.h"
27 #include "tst_timer.h"
28 #include "lapi/posix_clocks.h"
29
30 static struct timespec start_time, stop_time;
31 static clockid_t clock_id;
32
clock_name(clockid_t clk_id)33 static const char *clock_name(clockid_t clk_id)
34 {
35 switch (clk_id) {
36 case CLOCK_REALTIME:
37 return "CLOCK_REALTIME";
38 case CLOCK_REALTIME_COARSE:
39 return "CLOCK_REALTIME_COARSE";
40 case CLOCK_MONOTONIC:
41 return "CLOCK_MONOTONIC";
42 case CLOCK_MONOTONIC_COARSE:
43 return "CLOCK_MONOTONIC_COARSE";
44 case CLOCK_MONOTONIC_RAW:
45 return "CLOCK_MONOTONIC_RAW";
46 case CLOCK_BOOTTIME:
47 return "CLOCK_BOOTTIME";
48 case CLOCK_PROCESS_CPUTIME_ID:
49 return "CLOCK_PROCESS_CPUTIME_ID";
50 case CLOCK_THREAD_CPUTIME_ID:
51 return "CLOCK_THREAD_CPUTIME_ID";
52 default:
53 return "UNKNOWN/INVALID";
54 }
55 }
56
tst_timer_check(clockid_t clk_id)57 void tst_timer_check(clockid_t clk_id)
58 {
59 if (clock_gettime(clk_id, &start_time)) {
60 if (errno == EINVAL) {
61 tst_brkm(TCONF, NULL,
62 "Clock id %s(%u) not supported by kernel",
63 clock_name(clk_id), clk_id);
64 return;
65 }
66
67 tst_brkm(TBROK | TERRNO, NULL, "clock_gettime() failed");
68 }
69 }
70
tst_timer_start(clockid_t clk_id)71 void tst_timer_start(clockid_t clk_id)
72 {
73 clock_id = clk_id;
74
75 if (clock_gettime(clock_id, &start_time))
76 tst_resm(TWARN | TERRNO, "clock_gettime() failed");
77 }
78
tst_timer_stop(void)79 void tst_timer_stop(void)
80 {
81 if (clock_gettime(clock_id, &stop_time))
82 tst_resm(TWARN | TERRNO, "clock_gettime() failed");
83 }
84
tst_timer_elapsed(void)85 struct timespec tst_timer_elapsed(void)
86 {
87 return tst_timespec_diff(stop_time, start_time);
88 }
89