This method is only available on newer versions.
The first available version (v8.1.1) is shown here.
add_back(element)
public
Addelement to the back of the
queue. Never blocks.
# File activerecord/lib/active_record/connection_adapters/abstract/connection_pool/queue.rb, line 44
def add_back(element)
synchronize do
@queue.unshift element
@cond.signal
end
end
