test/time.awk - master - niceSOFT/gawk

@load "time"

# make sure gettimeofday() is consistent with systime().  We must call
# gettimeofday() before systime() to make sure the subtraction gives 0
# without risk of rolling over to the next second.
function timecheck(st,res) {
	res = gettimeofday()
	st = systime()
	printf "gettimeofday - systime = %d\n", res-st
	return res
}

BEGIN {
	delta = 1.3
	t0 = timecheck()
	printf "sleep(%s) = %s\n",delta,sleep(delta)
	t1 = timecheck()
	slept = t1-t0
	if ((slept < 0.9*delta) || (slept > 1.3*delta))
		printf "Warning: tried to sleep %.2f secs, but slept for %.2f secs\n",
		delta,slept

	format = "%b %d %H:%M:%S %Y"
	the_date = "Feb 11 13:12:11 1990"
	then = strptime(the_date, format)
	when = strftime(format, then)
	print "<" the_date ">", "<<" when ">>"
}