vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
# Check-in a database connection back into the pool.
Check-in a database connection back into the pool.
Check - in a database connection back into the pool .
def checkin(conn)
        @connection_mutex.synchronize do
          conn.run_callbacks :checkin
          @checked_out.delete conn
          @queue.signal
        end
      end
def checkin ( conn ) @connection_mutex . synchronize do conn . run_callbacks :checkin @checked_out . delete conn @queue . signal end end
Check-in a database connection back into the pool.
Check - in a database connection back into the pool .
conn