tlibc/include/tlibc/time.h

71 lines
1.5 KiB
C

#pragma once
#if __cplusplus
extern "C" {
#endif
#include "std.h"
/// nanoseconds
typedef u64 nsec_t;
/// microseconds
typedef u64 usec_t;
/// miliseconds
typedef u64 msec_t;
/// seconds
typedef u64 sec_t;
/// system time now in nanoseconds
///@return u64 will overflow in 13 years
nsec_t getTimeNsec();
/// system time now in microseconds
///@return u64 will overflow in 58494 years
usec_t getTimeUsec();
void sleepNsec(nsec_t time);
void sleepUsec(usec_t time);
void sleepMsec(msec_t time);
typedef struct Time {
i32 nsec; /* 0..999_999_999 */
i8 sec; /* 0..60 leap second??? */
i8 min; /* 0..59 */
i8 hour; /* 0..23 */
} Time;
typedef struct Date {
i8 month_day; /* 1..31 */
i8 month; /* 1..12 */
i16 year; /* 1900-xxxx */
i8 week_day; /* 1..7 */
i16 year_day; /* 1..366 */
} Date;
typedef struct DateTime {
Date d;
Time t;
} DateTime;
void DateTime_get(DateTime* dt, bool utc_time);
static inline void DateTime_getLocal(DateTime* dt) { DateTime_get(dt, false); }
static inline void DateTime_getUTC(DateTime* dt) { DateTime_get(dt, true); }
// yyyy.MM.dd_HH-mm-ss
#define FMT_DateTime_fileName "%04i.%02i.%02i_%02i-%02i-%02i"
// yyyy.MM.dd HH:mm:ss
#define FMT_DateTime_text "%04i.%02i.%02i %02i:%02i:%02i"
/*
USAGE:
DateTime dt;
DateTime_getLocal(&dt);
printf(FMT_DateTime_text, DT_expand(dt));
*/
#define DT_expand(dt) dt.d.year, dt.d.month, dt.d.month_day, dt.t.hour, dt.t.min, dt.t.sec
#if __cplusplus
}
#endif