Concurrent.timer now returns an IVar.

Author: jdantonio

lib/concurrent/executor/timer_set.rb

@@ -35,6 +35,7 @@ def initialize(time, args, task)
         end
       end
 
+      # @!visibility private
       def time
         synchronize { @time }
       end
@@ -107,7 +108,9 @@ def post(delay, *args, &task)
           @task_executor.post{ task.execute }
         else
           @queue.push(task)
-          @timer_executor.post(&method(:process_tasks))
+          # `process_tasks` method will run until queue is empty
+          # only post the process method when the queue is empty
+          @timer_executor.post(&method(:process_tasks)) if @queue.size == 1
         end
 
         @condition.set

lib/concurrent/utility/timer.rb

@@ -15,9 +15,7 @@ module Concurrent
   def timer(seconds, *args, &block)
     raise ArgumentError.new('no block given') unless block_given?
     raise ArgumentError.new('interval must be greater than or equal to zero') if seconds < 0
-
     Concurrent.configuration.global_timer_set.post(seconds, *args, &block)
-    true
   end
   module_function :timer
 end