Returns the current count of a barrier.
mp
barrier-count barrier => result
|   barrier⇩  |    
A barrier.  | 
|   result  |    
A positive fixnum, or  nil. | 
The function barrier-count returns the current count of the barrier barrier, or nil if barrier is disabled.
The count value can be changed by barrier-unblock, barrier-enable, barrier-disable or barrier-change-count.
barrier
barrier-wait
make-barrier
barrier-change-count
barrier-disable
barrier-enable
barrier-unblock
19.7.2 Synchronization barriers
LispWorks® User Guide and Reference Manual - 18 Feb 2025 15:32:36