1 files changed, 0 insertions, 111 deletions
diff --git a/lib/mutex_m.rb b/lib/mutex_m.rb
deleted file mode 100644
index e0fcf0f209..0000000000
--- a/lib/mutex_m.rb
+++ /dev/null
@@ -1,111 +0,0 @@
-#
-#   mutex_m.rb - 
-#   	$Release Version: 2.0$
-#   	$Revision: 1.7 $
-#   	$Date: 1998/02/27 04:28:57 $
-#       Original from mutex.rb
-#   	by Keiju ISHITSUKA(SHL Japan Inc.)
-#
-# --
-#   Usage:
-#	require "mutex_m.rb"
-#	obj = Object.new
-#	obj.extend Mutex_m
-#	...
-#	extended object can be handled like Mutex
-#
-
-module Mutex_m
-  def Mutex_m.append_features(cl)
-    super
-    unless cl.instance_of?(Module)
-      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
-    return self
-  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)
-      eval "class << self
-	alias locked? mu_locked?
-	alias lock mu_lock
-	alias unlock mu_unlock
-	alias try_lock mu_try_lock
-	alias synchronize mu_synchronize
-      end"
-    end
-    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 initialize(*args)
-    ret = super
-    @mu_waiting = []
-    @mu_locked = false;
-    return ret
-  end
-end