1 /*
2 * SysDB - src/utils/time.c
3 * Copyright (C) 2012 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #include "utils/time.h"
29 #include "utils/string.h"
31 #include <time.h>
33 #include <string.h>
35 /*
36 * public API
37 */
39 sdb_time_t
40 sdb_gettime(void)
41 {
42 struct timespec ts_now = { 0, 0 };
44 if (clock_gettime(CLOCK_REALTIME, &ts_now))
45 return 0;
46 return TIMESPEC_TO_SDB_TIME(ts_now);
47 } /* sdb_gettime */
49 int
50 sdb_sleep(sdb_time_t reg, sdb_time_t *rem)
51 {
52 struct timespec ts_reg, ts_rem = { 0, 0 };
53 int status;
55 ts_reg.tv_sec = (time_t)SDB_TIME_TO_SECS(reg);
56 ts_reg.tv_nsec = (long int)(reg % (sdb_time_t)1000000000);
58 status = nanosleep(&ts_reg, &ts_rem);
59 if (rem)
60 *rem = TIMESPEC_TO_SDB_TIME(ts_rem);
61 return status;
62 } /* sdb_sleep */
64 size_t
65 sdb_strftime(char *s, size_t len, const char *format, sdb_time_t t)
66 {
67 time_t tstamp;
68 struct tm tm;
70 memset(&tm, 0, sizeof(tm));
72 tstamp = (time_t)SDB_TIME_TO_SECS(t);
73 if (! localtime_r (&tstamp, &tm))
74 return 0;
76 return strftime(s, len, format, &tm);
77 } /* sdb_strftime */
79 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */