| 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. |
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(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, [email protected].
COPYING PERMISSIONS
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