TIME(2)                                                   TIME(2)

     NAME
          time, nsec - time in seconds and nanoseconds since epoch

     SYNOPSIS
          #include <u.h>
          #include <libc.h>

          long time(long *tp)

          vlong nsec(void)

     DESCRIPTION
          Both time and 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 time, if tp is
          not zero then *tp is also set to the answer.

          Times from time should be stored in and treated as ulongs;
          this extends the range of valid times into the year 2106.

          Time simply calls nsec and returns the value divided by
          1000000000.

          Nsec is a system call.  Previous implementations read
          /dev/bintime, opening that file when first called, and main-
          taining a static file descriptor; however, the maintenance
          of file descriptors in the face of process forks is overly
          complex and prone to error.

     SOURCE
          /sys/src/libc/9sys/time.c
          /sys/src/libc/9syscall

     SEE ALSO
          cputime(2), cons(3)

     DIAGNOSTICS
          Sets errstr.