From 3aeba166b2ffd68b307df2b3f278097722f3a1ed Mon Sep 17 00:00:00 2001
From: Braiden Vasco <braiden-vasco@users.noreply.github.com>
Date: Mon, 31 Jul 2017 04:41:12 +0000
Subject: [PATCH] Use Singleton

---
 exe/toxon   |  2 +-
 lib/main.rb | 13 +++----------
 2 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/exe/toxon b/exe/toxon
index 42941d0..97f22d9 100755
--- a/exe/toxon
+++ b/exe/toxon
@@ -8,4 +8,4 @@ $LOAD_PATH.unshift lib unless $LOAD_PATH.include? lib
 
 require 'main'
 
-Main.new
+Main.instance
diff --git a/lib/main.rb b/lib/main.rb
index 39781fb..f2eac2d 100644
--- a/lib/main.rb
+++ b/lib/main.rb
@@ -2,7 +2,7 @@
 
 require 'tox'
 
-require 'thread'
+require 'singleton'
 
 require 'helpers'
 require 'actions'
@@ -10,18 +10,11 @@ require 'reducer'
 require 'screen'
 
 class Main
+  include Singleton
+
   SAVEDATA_FILENAME = File.expand_path '../savedata', __dir__
 
-  def self.inherited(_base)
-    raise "#{self} is final"
-  end
-
-  def self.mutex
-    (@mutex ||= Mutex.new).tap { freeze }
-  end
-
   def initialize
-    raise "#{self.class} is singleton" unless self.class.mutex.try_lock
     call
   end