#ifndef _SYS_TIME_H #define _SYS_TIME_H 1 // https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_time.h.html #include __BEGIN_DECLS #define __need_time_t #define __need_suseconds_t #include #include struct timeval { time_t tv_sec; /* Seconds. */ suseconds_t tc_usec; /* Microseconds. */ }; struct itimerval { struct timeval it_interval; /* Timer interval. */ struct timeval it_value; /* Current value. */ }; #define ITIMER_REAL 0 #define ITIMER_VIRTUAL 1 #define ITIMER_PROF 2 int getitimer(int which, struct itimerval* value); int gettimeofday(struct timeval* __restrict tp, void* __restrict tzp); int setitimer(int which, const struct itimerval* __restrict value, struct itimerval* __restrict ovalue); int select(int nfds, fd_set* __restrict readfds, fd_set* __restrict writefds, fd_set* __restrict errorfds, struct timeval* __restrict timeout); int utimes(const char* path, const struct timeval times[2]); __END_DECLS #endif