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




NAME

       time - time functions for gawk


SYNOPSIS

       @load "time"

       time = gettimeofday()
       ret = sleep(amount)


CAUTION

       This extension is deprecated in favor of the timex extension in the
       gawkextlib project.  Loading it issues a warning.  It will be removed
       from the gawk distribution in the next major release.


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(3), fnmatch(3), fork(3),
       inplace(3), ordchr(3), readdir(3), readfile(3), revoutput(3),
       rwarray(3).

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


AUTHOR

       Arnold Robbins, arnold@skeeve.com.


COPYING PERMISSIONS

       Copyright (C) 2012, 2013, 2018, 2022, 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           Jul 11 2022                         TIME(3)

gawk 5.2.0 - Generated Sun Sep 4 16:18:15 CDT 2022
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