1 files changed, 0 insertions, 118 deletions
diff --git a/lib/mutex_m.rb b/lib/mutex_m.rb
deleted file mode 100644
index 0192d83bee..0000000000
--- a/lib/mutex_m.rb
+++ /dev/null
@@ -1,118 +0,0 @@
-#
-#   mutex_m.rb - 
-#   	$Release Version: 3.0$
-#   	$Revision: 1.7 $
-#   	$Date: 1998/02/27 04:28:57 $
-#       Original from mutex.rb
-#   	by Keiju ISHITSUKA(keiju@ishitsuka.com)
-#       modified by matz
-#       patched by akira yamada
-#
-# --
-#   Usage:
-#	require "mutex_m.rb"
-#	obj = Object.new
-#	obj.extend Mutex_m
-#	...
-#	extended object can be handled like Mutex
-#       or
-#	class Foo
-#	  include Mutex_m
-#	  ...
-#	end
-#	obj = Foo.new
-#	this obj can be handled like Mutex
-#
-
-module Mutex_m
-  def Mutex_m.define_aliases(cl)
-    cl.module_eval %q{
-      alias locked? mu_locked?
-      alias lock mu_lock
-      alias unlock mu_unlock
-      alias try_lock mu_try_lock
-      alias synchronize mu_synchronize
-    }
-  end  
-
-  def Mutex_m.append_features(cl)
-    super
-    define_aliases(cl) unless cl.instance_of?(Module)
-  end
-  
-  def Mutex_m.extend_object(obj)
-    super
-    obj.mu_extended
-  end
-
-  def mu_extended
-    unless (defined? locked? and
-	    defined? lock and
-	    defined? unlock and
-	    defined? try_lock and
-	    defined? synchronize)
-      Mutex_m.define_aliases(class<<self;self;end)
-    end
-    mu_initialize
-  end
-  
-  # locking 
-  def mu_synchronize
-    begin
-      mu_lock
-      yield
-    ensure
-      mu_unlock
-    end
-  end
-  
-  def mu_locked?
-    @mu_locked
-  end
-  
-  def mu_try_lock
-    result = false
-    Thread.critical = true
-    unless @mu_locked
-      @mu_locked = true
-      result = true
-    end
-    Thread.critical = false
-    result
-  end
-  
-  def mu_lock
-    while (Thread.critical = true; @mu_locked)
-      @mu_waiting.push Thread.current
-      Thread.stop
-    end
-    @mu_locked = true
-    Thread.critical = false
-    self
-  end
-  
-  def mu_unlock
-    return unless @mu_locked
-    Thread.critical = true
-    wait = @mu_waiting
-    @mu_waiting = []
-    @mu_locked = false
-    Thread.critical = false
-    for w in wait
-      w.run
-    end
-    self
-  end
-  
-  private
-  
-  def mu_initialize
-    @mu_waiting = []
-    @mu_locked = false;
-  end
-
-  def initialize(*args)
-    mu_initialize
-    super
-  end
-end