| .TH TIME 3am "Jan 15 2013" "Free Software Foundation" "GNU Awk Extension Modules" |
| .SH NAME |
| time \- time functions for gawk |
| .SH SYNOPSIS |
| .ft CW |
| @load "time" |
| .sp |
| time = gettimeofday() |
| .br |
| ret = sleep(amount) |
| .ft R |
| .SH DESCRIPTION |
| The |
| .I time |
| extension adds two functions named |
| .B gettimeofday() |
| and |
| .BR sleep() , |
| as follows. |
| .TP |
| .B 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 |
| .B ERRNO |
| to indicate the problem. |
| .TP |
| .BI sleep( seconds ) |
| This function attempts to sleep for the given amount of seconds, which |
| may include a fractional portion. |
| If |
| .I seconds |
| is negative, or the attempt to sleep fails, |
| then it returns \-1 and sets |
| .BR ERRNO . |
| Otherwise, the function should return 0 after sleeping |
| for the indicated amount of time. |
| ... .SH NOTES |
| ... .SH BUGS |
| .SH EXAMPLE |
| .ft CW |
| .nf |
| @load "time" |
| \&... |
| printf "It is now %g seconds since the Epoch\en", gettimeofday() |
| printf "Pausing for a while... " ; sleep(2.5) ; print "done" |
| .fi |
| .ft R |
| .SH "SEE ALSO" |
| .IR "GAWK: Effective AWK Programming" , |
| .IR filefuncs (3am), |
| .IR fnmatch (3am), |
| .IR fork (3am), |
| .IR inplace (3am), |
| .IR ordchr (3am), |
| .IR readdir (3am), |
| .IR readfile (3am), |
| .IR revoutput (3am), |
| .IR rwarray (3am). |
| .PP |
| .IR gettimeofday (2), |
| .IR nanosleep (2), |
| .IR select (2). |
| .SH AUTHOR |
| Arnold Robbins, |
| .BR arnold@skeeve.com . |
| .SH COPYING PERMISSIONS |
| Copyright \(co 2012, 2013, |
| Free Software Foundation, Inc. |
| .PP |
| 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. |
| .ig |
| Permission is granted to process this file through troff and print the |
| results, provided the printed document carries copying permission |
| notice identical to this one except for the removal of this paragraph |
| (this paragraph not being relevant to the printed manual page). |
| .. |
| .PP |
| 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. |
| .PP |
| 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. |
