* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): Just

call File.unlink and ignore ENOENT because existence check
  before unlinking does not help in terms of race condition.

* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): My
  comment about thread safeness is obsolete.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34413 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,12 @@
+Wed Feb  1 14:38:31 2012  Akinori MUSHA  <knu@iDaemons.org>
+
+	* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): Just
+	  call File.unlink and ignore ENOENT because existence check
+	  before unlinking does not help in terms of race condition.
+
+	* lib/tempfile.rb (Tempfile#unlink, Tempfile::Remover#call): My
+	  comment about thread safeness is obsolete.
+
 Wed Feb  1 09:50:10 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* doc/re.rdoc (Repetition): fix typo.  reported by Ori Avtalion

lib/tempfile.rb

@@ -227,18 +227,17 @@ class Tempfile < DelegateClass(File)
   #                    # to do so again.
   #   end
   def unlink
-    # keep this order for thread safeness
     return unless @tmpname
     begin
-      if File.exist?(@tmpname)
       File.unlink(@tmpname)
+    rescue Errno::ENOENT
+    rescue Errno::EACCES
+      # may not be able to unlink on Windows; just ignore
+      return
     end
     # remove tmpname from remover
     @data[0] = @data[1] = nil
     @tmpname = nil
-    rescue Errno::EACCES
-      # may not be able to unlink on Windows; just ignore
-    end
   end
   alias delete unlink
 
@@ -270,22 +269,24 @@ class Tempfile < DelegateClass(File)
     end
 
     def call(*args)
-      if @pid == $$
+      return if @pid != $$
+
       path, tmpfile = *@data
 
       STDERR.print "removing ", path, "..." if $DEBUG
 
       tmpfile.close if tmpfile
 
-        # keep this order for thread safeness
       if path
-          File.unlink(path) if File.exist?(path)
+        begin
+          File.unlink(path)
+        rescue Errno::ENOENT
+        end
       end
 
       STDERR.print "done\n" if $DEBUG
     end
   end
-  end
   # :startdoc:
 
   class << self