1 /*
2 * Copyright (C) 2011-2020 Kim Woelders
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to
6 * deal in the Software without restriction, including without limitation the
7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8 * sell copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies of the Software, its documentation and marketing & publicity
13 * materials, and acknowledgment shall be given in the documentation, materials
14 * and software packages that this Software was used.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23 #include "config.h"
24
25 #include <time.h>
26 #if !USE_MONOTONIC_CLOCK
27 #include <sys/time.h>
28 #endif
29
30 #include "util.h"
31
32 unsigned int
GetTimeMs(void)33 GetTimeMs(void)
34 {
35 #if USE_MONOTONIC_CLOCK
36 struct timespec ts;
37
38 clock_gettime(CLOCK_MONOTONIC, &ts);
39
40 return (unsigned int)(ts.tv_sec * 1000 + ts.tv_nsec / 1000000);
41 #else
42 struct timeval timev;
43
44 gettimeofday(&timev, NULL);
45
46 return (unsigned int)(timev.tv_sec * 1000 + timev.tv_usec / 1000);
47 #endif
48 }
49
50 unsigned int
GetTimeUs(void)51 GetTimeUs(void)
52 {
53 #if USE_MONOTONIC_CLOCK
54 struct timespec ts;
55
56 clock_gettime(CLOCK_MONOTONIC, &ts);
57
58 return (unsigned int)(ts.tv_sec * 1000000 + ts.tv_nsec / 1000);
59 #else
60 struct timeval timev;
61
62 gettimeofday(&timev, NULL);
63
64 return (unsigned int)(timev.tv_sec * 1000000 + timev.tv_usec);
65 #endif
66 }
67
68 void
SleepUs(unsigned int tus)69 SleepUs(unsigned int tus)
70 {
71 struct timespec ts;
72
73 ts.tv_sec = tus / 1000000;
74 tus -= ts.tv_sec * 1000000;
75 ts.tv_nsec = tus * 1000;
76
77 while (nanosleep(&ts, &ts))
78 ;
79 }
80