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time.h
Go to the documentation of this file.
1
9 #ifndef __SERI_TIME_H__
10 #define __SERI_TIME_H__
11
12 #include "core/time.h"
13
14 #include "sys/types.h"
15
16 /* Helpers and local definitions */
17
21 #define NUM_SECONDS_IN_MIN (60)
22
26 #define NUM_MILLIS_IN_SEC (1000)
27
31 #define NUM_NANOS_IN_USEC (1000)
32
36 #define NUM_NANOS_IN_MILLI (1000000L)
37
41 #define NUM_NANOS_IN_SEC (1000000000ULL)
42
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46
49 struct tm
50 {
51 int tm_sec;
52 int tm_min;
53 int tm_hour;
54 int tm_mday;
55 int tm_mon;
56 int tm_year;
57 int tm_wday;
58 int tm_yday;
59 int tm_isdst;
60 };
61
62
90 int nanosleep(const struct timespec *req, struct timespec *rem);
91
102 int clock_gettime(clockid_t clk_id, struct timespec *ts);
103
109 time_t time(time_t *time);
110
112 #ifndef __HIDE_INTERNAL_FUNCTIONS__
113
119 int alarm(unsigned int seconds);
120
121 #endif /* __HIDE_INTERNAL_FUNCTIONS__ */
122
128 unsigned int arm_timer_get_frequency(void);
129
136 void timeadd(const struct timespec *a,
137 const struct timespec *b,
138 struct timespec *res);
139
146 void timesub(const struct timespec *a,
147 const struct timespec *b,
148 struct timespec *res);
149
156 int64_t timespec_to_ms(const struct timespec *a);
157
164 uint64_t timespec_to_nsec(const struct timespec *a);
165
172 void ms_to_timespec(int64_t t, struct timespec *a);
173
174 #ifdef __cplusplus
175 }
176 #endif
177
178 #endif
179
timeadd
void timeadd(const struct timespec *a, const struct timespec *b, struct timespec *res)
The function adds two dates.
timespec_to_nsec
uint64_t timespec_to_nsec(const struct timespec *a)
The function converts time from timespec format to nanoseconds.
tm::tm_mday
int tm_mday
Definition: time.h:54
types.h
Wrapper for kernel types.h header.
ms_to_timespec
void ms_to_timespec(int64_t t, struct timespec *a)
The function converts time in milliseconds to to timespec format.
tm::tm_hour
int tm_hour
Definition: time.h:53
time_t
long long time_t
Definition: types.h:33
tm::tm_mon
int tm_mon
Definition: time.h:55
clock_gettime
int clock_gettime(clockid_t clk_id, struct timespec *ts)
The function retrieves the time of the specified clock clk_id. This function is non-blocking, except CLOCK_REE case. In this case function can sleep and can be interrupted with -1 result and EINTR errno.
nanosleep
int nanosleep(const struct timespec *req, struct timespec *rem)
nanosleep() suspends the execution of the calling thread until either at least the time specified in ...
tm::tm_sec
int tm_sec
Definition: time.h:51
timesub
void timesub(const struct timespec *a, const struct timespec *b, struct timespec *res)
The function subtracts two dates.
arm_timer_get_frequency
unsigned int arm_timer_get_frequency(void)
The function retrieves the frequency of ARM timer.
tm::tm_wday
int tm_wday
Definition: time.h:57
tm::tm_min
int tm_min
Definition: time.h:52
tm
Definition: time.h:49
timespec_to_ms
int64_t timespec_to_ms(const struct timespec *a)
The function converts time from timespec format to milliseconds.
time
time_t time(time_t *time)
Get the current calendar time as a value of type time_t.
tm::tm_isdst
int tm_isdst
Definition: time.h:59
tm::tm_yday
int tm_yday
Definition: time.h:58
tm::tm_year
int tm_year
Definition: time.h:56