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@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
}
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