Returns the current number of threads that are still waiting for the condition variable.
mp
condition-variable-wait-count condvar => wait-count
condvar
A condition variable
wait-count
A non-negative integer
The function condition-variable-wait-count returns the current number of threads that are still waiting for the condition variable. Note that for a condition variable that is actually in use, this number can change at any time.
condition-variable-wait-count
condition-variable-wait