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Kernel+LibC: Implement clock_gettime() and clock_nanosleep()

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Only the CLOCK_MONOTONIC clock is supported at the moment, and it only
has millisecond precision. :^)
This commit is contained in:
Andreas Kling 2019-11-02 19:34:06 +01:00
parent 73b2cb9ed8
commit cc68654a44
9 changed files with 127 additions and 7 deletions
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20
Libraries/LibC/time.h
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@ -36,15 +36,23 @@ char* asctime(const struct tm*);
#define CLOCKS_PER_SEC 1000
clock_t clock();
double difftime(time_t, time_t);
size_t strftime(char* s, size_t max, const char* format, const struct tm*);
#define difftime(t1, t0) (double)(t1 - t0)
// This is c++11+, but we have no macro for that now.
struct timespec {
time_t tv_sec;
long tv_nsec;
};
typedef int clockid_t;
#define CLOCK_MONOTONIC 1
#define TIMER_ABSTIME 99
int clock_gettime(clockid_t, struct timespec*);
int clock_nanosleep(clockid_t, int flags, const struct timespec* requested_sleep, struct timespec* remaining_sleep);
double difftime(time_t, time_t);
size_t strftime(char* s, size_t max, const char* format, const struct tm*);
#define difftime(t1, t0) (double)(t1 - t0)
__END_DECLS