1 /*
2 * Copyright (c) 2018 Intel Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6 #ifndef ZEPHYR_INCLUDE_POSIX_TIME_H_
7 #define ZEPHYR_INCLUDE_POSIX_TIME_H_
8
9 /* Read standard header. This may find <posix/time.h> since they
10 * refer to the same file when include/posix is in the search path.
11 */
12 #include <time.h>
13
14 #ifdef CONFIG_NEWLIB_LIBC
15 /* Kludge to support outdated newlib version as used in SDK 0.10 for Xtensa */
16 #include <newlib.h>
17
18 #ifdef __NEWLIB__
19 /* Newever Newlib 3.x+ */
20 #include <sys/timespec.h>
21 #else /* __NEWLIB__ */
22 /* Workaround for older Newlib 2.x, as used by Xtensa. It lacks sys/_timeval.h,
23 * so mimic it here.
24 */
25 #include <sys/types.h>
26 #ifndef __timespec_defined
27
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31
32 struct timespec {
33 time_t tv_sec;
34 long tv_nsec;
35 };
36
37 struct itimerspec {
38 struct timespec it_interval; /* Timer interval */
39 struct timespec it_value; /* Timer expiration */
40 };
41
42 #ifdef __cplusplus
43 }
44 #endif
45
46 #endif /* __timespec_defined */
47 #endif /* __NEWLIB__ */
48
49 #else /* CONFIG_NEWLIB_LIBC */
50 /* Not Newlib */
51 # ifdef CONFIG_ARCH_POSIX
52 # include <bits/types/struct_timespec.h>
53 # include <bits/types/struct_itimerspec.h>
54 # else
55 # include <sys/timespec.h>
56 # endif
57 #endif /* CONFIG_NEWLIB_LIBC */
58
59 #include <kernel.h>
60 #include <errno.h>
61 #include "posix_types.h"
62 #include <posix/signal.h>
63
64 #ifdef __cplusplus
65 extern "C" {
66 #endif
67
68 #ifndef CLOCK_REALTIME
69 #define CLOCK_REALTIME 1
70 #endif
71
72 #ifndef CLOCK_MONOTONIC
73 #define CLOCK_MONOTONIC 4
74 #endif
75
76 #define NSEC_PER_MSEC (NSEC_PER_USEC * USEC_PER_MSEC)
77
78 #ifndef TIMER_ABSTIME
79 #define TIMER_ABSTIME 4
80 #endif
81
_ts_to_ms(const struct timespec * to)82 static inline int32_t _ts_to_ms(const struct timespec *to)
83 {
84 return (to->tv_sec * MSEC_PER_SEC) + (to->tv_nsec / NSEC_PER_MSEC);
85 }
86
87 #ifdef CONFIG_ARCH_POSIX
88 int clock_gettime(clockid_t clock_id, struct timespec *ts);
89 #else
90 __syscall int clock_gettime(clockid_t clock_id, struct timespec *ts);
91 #endif /* CONFIG_ARCH_POSIX */
92 int clock_settime(clockid_t clock_id, const struct timespec *ts);
93 /* Timer APIs */
94 int timer_create(clockid_t clockId, struct sigevent *evp, timer_t *timerid);
95 int timer_delete(timer_t timerid);
96 int timer_gettime(timer_t timerid, struct itimerspec *its);
97 int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
98 struct itimerspec *ovalue);
99 int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
100
101 #ifdef __cplusplus
102 }
103 #endif
104
105 #ifndef CONFIG_ARCH_POSIX
106 #include <syscalls/time.h>
107 #endif /* CONFIG_ARCH_POSIX */
108
109 #else /* ZEPHYR_INCLUDE_POSIX_TIME_H_ */
110 /* Read the toolchain header when <posix/time.h> finds itself on the
111 * first attempt.
112 */
113 #include_next <time.h>
114 #endif /* ZEPHYR_INCLUDE_POSIX_TIME_H_ */
115
