




Increments the arriver count of a barrier.
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 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 - 20 Sep 2017