gettimeofday.2

来自「minix操作系统最新版本（3.1.1）的源代码」· 2 代码 · 共 23 行

.TH GETTIMEOFDAY 2 "July 6, 2005"
.UC 4
.SH NAME
gettimeofday \- get date and time
.SH SYNOPSIS
.ft B
.nf
#include <sys/time.h>

int gettimeofday(struct timeval *tp, struct timezone *tzp)
.fi
.ft R
.SH DESCRIPTION
.B Gettimeofday
returns the time in seconds and microseconds since epoch in GMT
(midnight, january 1st, 1970). The timezone argument tzp is expected
to be NULL.
.SH RETURNS
0 on success, -1 on error. If -1 is returned, errno is set to indicate
the error.
.SH "SEE ALSO
.BR ctime (3).