#ifndef _SYS_TIME_H #define _SYS_TIME_H #include struct timeval { time_t tv_sec; // Seconds suseconds_t tv_usec; // Microseconds }; struct itimerval { struct timeval it_interval; // Timer interval struct timeval it_value; // Current value }; struct timezone; int gettimeofday(struct timeval *__restrict, struct timezone *__restrict); #endif // _SYS_TIME_H