1 #include "pico/util/datetime.h"
2
3 #if !PICO_ON_DEVICE && __APPLE__
4 // if we're compiling with LLVM on Apple, __weak does something else, but we don't care about overriding these anyway on host builds
5 #define __datetime_weak
6 #else
7 #define __datetime_weak __weak
8 #endif
9
pico_localtime_r(const time_t * time,struct tm * tm)10 __datetime_weak struct tm * pico_localtime_r(const time_t *time, struct tm *tm) {
11 return localtime_r(time, tm);
12 }
13
pico_mktime(struct tm * tm)14 __datetime_weak time_t pico_mktime(struct tm *tm) {
15 return mktime(tm);
16 }
17
18 #if PICO_INCLUDE_RTC_DATETIME
19 #include <stdio.h>
20
21 static const char *DATETIME_MONTHS[12] = {
22 "January",
23 "February",
24 "March",
25 "April",
26 "May",
27 "June",
28 "July",
29 "August",
30 "September",
31 "October",
32 "November",
33 "December"
34 };
35
36 static const char *DATETIME_DOWS[7] = {
37 "Sunday",
38 "Monday",
39 "Tuesday",
40 "Wednesday",
41 "Thursday",
42 "Friday",
43 "Saturday",
44 };
45
datetime_to_str(char * buf,uint buf_size,const datetime_t * t)46 void datetime_to_str(char *buf, uint buf_size, const datetime_t *t) {
47 snprintf(buf,
48 buf_size,
49 "%s %d %s %d:%02d:%02d %d",
50 DATETIME_DOWS[t->dotw],
51 t->day,
52 DATETIME_MONTHS[t->month - 1],
53 t->hour,
54 t->min,
55 t->sec,
56 t->year);
57 };
58
datetime_to_tm(const datetime_t * dt,struct tm * tm)59 void datetime_to_tm(const datetime_t *dt, struct tm *tm) {
60 tm->tm_year = dt->year - 1900;
61 tm->tm_mon = dt->month - 1;
62 tm->tm_mday = dt->day;
63 tm->tm_hour = dt->hour;
64 tm->tm_min = dt->min;
65 tm->tm_sec = dt->sec;
66 }
67
tm_to_datetime(const struct tm * tm,datetime_t * dt)68 void tm_to_datetime(const struct tm *tm, datetime_t *dt) {
69 dt->year = (int16_t) (tm->tm_year + 1900); // 0..4095
70 dt->month = (int8_t) (tm->tm_mon + 1); // 1..12, 1 is January
71 dt->day = (int8_t) tm->tm_mday; // 1..28,29,30,31 depending on month
72 dt->dotw = (int8_t) tm->tm_wday; // 0..6, 0 is Sunday
73 dt->hour = (int8_t) tm->tm_hour; // 0..23
74 dt->min = (int8_t) tm->tm_min; // 0..59
75 dt->sec = (int8_t) tm->tm_sec; // 0..59
76 }
77
time_to_datetime(time_t time,datetime_t * dt)78 bool time_to_datetime(time_t time, datetime_t *dt) {
79 struct tm local;
80 if (pico_localtime_r(&time, &local)) {
81 tm_to_datetime(&local, dt);
82 return true;
83 }
84 return false;
85 }
86
datetime_to_time(const datetime_t * dt,time_t * time)87 bool datetime_to_time(const datetime_t *dt, time_t *time) {
88 struct tm local;
89 datetime_to_tm(dt, &local);
90 *time = pico_mktime(&local);
91 return *time >= 0;
92 }
93
94 #endif
95
timespec_to_ms(const struct timespec * ts)96 uint64_t timespec_to_ms(const struct timespec *ts) {
97 int64_t rc = ts->tv_sec * 1000;
98 rc += ts->tv_nsec / 1000000;
99 return (uint64_t) rc;
100 }
101
ms_to_timespec(uint64_t ms,struct timespec * ts)102 void ms_to_timespec(uint64_t ms, struct timespec *ts) {
103 ts->tv_sec = (time_t)((int64_t)ms / 1000);
104 ts->tv_nsec = ((long)((int64_t)ms % 1000)) * 1000000;
105 }
106
timespec_to_us(const struct timespec * ts)107 uint64_t timespec_to_us(const struct timespec *ts) {
108 int64_t rc = ts->tv_sec * 1000000;
109 rc += ts->tv_nsec / 1000;
110 return (uint64_t) rc;
111 }
112
us_to_timespec(uint64_t ms,struct timespec * ts)113 void us_to_timespec(uint64_t ms, struct timespec *ts) {
114 ts->tv_sec = (time_t)((int64_t)ms / 1000000);
115 ts->tv_nsec = ((long)((int64_t)ms % 1000000)) * 1000;
116 }
117
118
