TIME(3am) GNU Awk Extension Modules TIME(3am)
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. In the next major release of gawk, loading it will
issue a warning. It will be removed from the gawk distribution in the
major release after the next one.
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 ER-
RNO. 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 man-
ual page into another language, under the above conditions for modified
versions, except that this permission notice may be stated in a trans-
lation approved by the Foundation.
Free Software Foundation Nov 21 2019 TIME(3am)
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