Plan 9 from Bell Labs’s /usr/web/sources/contrib/rsc/linuxemu/libc/linux/9/nsec.c
#include <u.h> #include <libc.h> #include "../syscall/syscall.h" vlong nsec(void) { Timeval tv; if(linuxgettimeofday(&tv, nil) < 0) return 0LL; return (vlong)tv.sec*1000000000LL+(vlong)tv.usec*1000LL; }