lib/httpx/selector.rb in httpx-0.1.0 vs lib/httpx/selector.rb in httpx-0.2.0

@@ -1,8 +1,14 @@
 # frozen_string_literal: true
 
 class HTTPX::Selector
+  READABLE = %i[rw r].freeze
+  WRITABLE = %i[rw w].freeze
+
+  private_constant :READABLE
+  private_constant :WRITABLE
+
   #
   # I/O monitor
   #
   class Monitor
     attr_accessor :value, :interests, :readiness
@@ -13,15 +19,15 @@
       @reactor = reactor
       @closed = false
     end
 
     def readable?
-      @interests == :rw || @interests == :r
+      READABLE.include?(@interests)
     end
 
     def writable?
-      @interests == :rw || @interests == :w
+      WRITABLE.include?(@interests)
     end
 
     # closes +@io+, deregisters from reactor (unless +deregister+ is false)
     def close(deregister = true)
       return if @closed
@@ -58,11 +64,11 @@
     end
   end
 
   # register +io+ for +interests+ events.
   def register(io, interests)
-    readable = interests == :r || interests == :rw
-    writable = interests == :w || interests == :rw
+    readable = READABLE.include?(interests)
+    writable = WRITABLE.include?(interests)
     @lock.synchronize do
       if readable
         monitor = @readers[io]
         if monitor
           monitor.interests = interests