#ifndef _SYS_TIME_H #define _SYS_TIME_H #include <time.h> typedef unsigned long suseconds_t; struct timeval { time_t tv_sec; /* seconds */ suseconds_t tv_usec; /* microseconds */ }; struct timezone { int tz_minuteswest; /* minutes W of Greenwich */ int tz_dsttime; /* type of dst correction */ }; extern int gettimeofday ( struct timeval *tv, struct timezone *tz ); #endif /* _SYS_TIME_H */