ref: 1e3790f7b5a7d5a01d63afe3956b36fa2d11ed0c dir: /sys/src/libc/9sys/time.c/
#include <u.h> #include <libc.h> long time(long *tp) { vlong t; t = nsec()/1000000000LL; if(tp != nil) *tp = t; return t; }