# File lib/system_timer/concurrent_timer_pool.rb, line 17
17:     def add_timer(interval_in_seconds, exception_class=nil)
18:       new_timer = register_timer(Time.now.to_f + interval_in_seconds, Thread.current, exception_class)
19:       log_registered_timers if SystemTimer.debug_enabled?
20:       new_timer
21:     end