#pragma once #define Nsec 1000000000ULL u64int sec_realtime(void);u64int nanosec_monotonic(void);void timestr(u64int ns, char *buf, int sz) sl_nonnull(2) sl_wr(2, 3);u64int parsetime(const char *s) sl_cstr(1) sl_nonnull(1);void sleep_ms(int ms);