The function barrier-pass-through
increments the arriver count of the barrier barrier. If the arriver count thereby reaches the count, barrier-pass-through
unblocks the barrier and returns :unblocked
, otherwise it returns :passed-through
.
barrier-pass-through
is equivalent to calling barrier-wait with pass-through t
. See barrier-wait for details.
LispWorks User Guide and Reference Manual - 13 Feb 2015