Merge pull request #77 from kaspth/litescheduler-typo-and-explaining-…

…method

Litescheduler: fix typo and add explaining method

lib/litestack/litescheduler.rb

@@ -29,15 +29,15 @@ def self.spawn(&block)
   end
 
   def self.storage
-    if backend == :fiber || backend == :poylphony
+    if fiber_backed?
       Fiber.current.storage
     else
       Thread.current
     end
   end
 
   def self.current
-    if backend == :fiber || backend == :poylphony
+    if fiber_backed?
       Fiber.current
     else
       Thread.current
@@ -64,15 +64,15 @@ def self.switch
   # they must send (true) as a parameter to this method
   # else it is a no-op for fibers
   def self.synchronize(fiber_sync = false, &block)
-    if (backend == :fiber) || (backend == :polyphony)
+    if fiber_backed?
       yield # do nothing, just run the block as is
     else
       mutex.synchronize(&block)
     end
   end
 
   def self.max_contexts
-    return 50 if backend == :fiber || backend == :polyphony
+    return 50 if fiber_backed?
     5
   end
 
@@ -81,4 +81,10 @@ def self.mutex
     # a single mutex per process (is that ok?)
     @@mutex ||= Mutex.new
   end
+
+  private
+
+  def self.fiber_backed?
+    backend == :fiber || backend == :polyphony
+  end
 end