mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2024-11-21 22:52:20 +00:00
0d728f96b7
This constant can be useful whenever one has to deal with timespecs, so let's move it to the header.
36 lines
707 B
C
36 lines
707 B
C
#ifndef UTIL_TIME_H
|
|
#define UTIL_TIME_H
|
|
|
|
#include <stdint.h>
|
|
#include <time.h>
|
|
|
|
static const long NSEC_PER_SEC = 1000000000;
|
|
|
|
/**
|
|
* Get the current time, in milliseconds.
|
|
*/
|
|
int64_t get_current_time_msec(void);
|
|
|
|
/**
|
|
* Convert a timespec to milliseconds.
|
|
*/
|
|
int64_t timespec_to_msec(const struct timespec *a);
|
|
|
|
/**
|
|
* Convert a timespec to nanoseconds.
|
|
*/
|
|
int64_t timespec_to_nsec(const struct timespec *a);
|
|
|
|
/**
|
|
* Convert nanoseconds to a timespec.
|
|
*/
|
|
void timespec_from_nsec(struct timespec *r, int64_t nsec);
|
|
|
|
/**
|
|
* Subtracts timespec `b` from timespec `a`, and stores the difference in `r`.
|
|
*/
|
|
void timespec_sub(struct timespec *r, const struct timespec *a,
|
|
const struct timespec *b);
|
|
|
|
#endif
|