merge revision(s) 34413:

* 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	  comment about thread safeness is obsolete.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/branches/ruby_1_9_3@34572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

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)
-      end
-      # remove tmpname from remover
-      @data[0] = @data[1] = nil
-      @tmpname = nil
+      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
   end
   alias delete unlink
 
@@ -270,20 +269,22 @@ class Tempfile < DelegateClass(File)
     end
 
     def call(*args)
-      if @pid == $$
-        path, tmpfile = *@data
+      return if @pid != $$
 
-        STDERR.print "removing ", path, "..." if $DEBUG
+      path, tmpfile = *@data
 
-        tmpfile.close if tmpfile
+      STDERR.print "removing ", path, "..." if $DEBUG
 
-        # keep this order for thread safeness
-        if path
-          File.unlink(path) if File.exist?(path)
+      tmpfile.close if tmpfile
+
+      if path
+        begin
+          File.unlink(path)
+        rescue Errno::ENOENT
         end
-
-        STDERR.print "done\n" if $DEBUG
       end
+
+      STDERR.print "done\n" if $DEBUG
     end
   end
   # :startdoc: