time

TIME(3am)                  GNU Awk Extension Modules                 TIME(3am)



NAME
       time - time functions for gawk

SYNOPSIS
       @load "time"

       time = gettimeofday()
       ret = sleep(amount)

DESCRIPTION
       The time extension adds two functions named gettimeofday() and sleep(),
       as follows.

       gettimeofday()
              This function returns the number of seconds since the Epoch as a
              floating-point value. It should have subsecond precision.  It
              returns -1 upon error and sets ERRNO to indicate the problem.

       sleep(seconds)
              This function attempts to sleep for the given amount of seconds,
              which may include a fractional portion.  If seconds is negative,
              or the attempt to sleep fails, then it returns -1 and sets
              ERRNO.  Otherwise, the function should return 0 after sleeping
              for the indicated amount of time.

EXAMPLE
       @load "time"
       ...
       printf "It is now %g seconds since the Epoch\n", gettimeofday()
       printf "Pausing for a while... " ; sleep(2.5) ; print "done"

SEE ALSO
       GAWK: Effective AWK Programming, filefuncs(3am), fnmatch(3am),
       fork(3am), inplace(3am), ordchr(3am), readdir(3am), readfile(3am),
       revoutput(3am), rwarray(3am).

       gettimeofday(2), nanosleep(2), select(2).

AUTHOR
       Arnold Robbins, arnold@skeeve.com.

COPYING PERMISSIONS
       Copyright © 2012, 2013, 2018, Free Software Foundation, Inc.

       Permission is granted to make and distribute verbatim copies of this
       manual page provided the copyright notice and this permission notice
       are preserved on all copies.

       Permission is granted to copy and distribute modified versions of this
       manual page under the conditions for verbatim copying, provided that
       the entire resulting derived work is distributed under the terms of a
       permission notice identical to this one.

       Permission is granted to copy and distribute translations of this
       manual page into another language, under the above conditions for
       modified versions, except that this permission notice may be stated in
       a translation approved by the Foundation.



Free Software Foundation          Feb 02 2018                        TIME(3am)