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- .TH TIME 2
- .SH NAME
- time, nsec \- time in seconds and nanoseconds since epoch
- .SH SYNOPSIS
- .B #include <u.h>
- .br
- .B #include <libc.h>
- .PP
- .nf
- .B
- long time(long *tp)
- .PP
- .B
- vlong nsec(void)
- .SH DESCRIPTION
- Both
- .I time
- and
- .I nsec
- return the time since the epoch 00:00:00 GMT, Jan. 1, 1970.
- The return value of the former is in seconds and the latter in nanoseconds.
- For
- .IR time ,
- if
- .I tp
- is not zero then
- .BI * tp
- is also set to the answer.
- .PP
- These functions work by reading
- .BR /dev/bintime ,
- opening that file when they are first called.
- .SH SOURCE
- .B /sys/src/libc/9sys/time.c
- .br
- .B /sys/src/libc/9sys/nsec.c
- .SH SEE ALSO
- .IR cputime (2),
- .IR cons (3)
- .SH DIAGNOSTICS
- Sets
- .IR errstr .
- .SH BUGS
- These routines maintain a static file descriptor.
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