new

# File lib/tempfile.rb, line 24
  def initialize(basename, tmpdir=Dir::tmpdir)
    if $SAFE > 0 and tmpdir.tainted?
      tmpdir = '/tmp'
    end

    lock = nil
    n = failure = 0
    
    begin
      Thread.critical = true

      begin
        tmpname = File.join(tmpdir, make_tmpname(basename, n))
        lock = tmpname + '.lock'
        n += 1
      end while @@cleanlist.include?(tmpname) or
        File.exist?(lock) or File.exist?(tmpname)

      Dir.mkdir(lock)
    rescue
      failure += 1
      retry if failure < MAX_TRY
      raise "cannot generate tempfile `%s'" % tmpname
    ensure
      Thread.critical = false
    end

    @data = [tmpname]
    @clean_proc = Tempfile.callback(@data)
    ObjectSpace.define_finalizer(self, @clean_proc)

    @tmpfile = File.open(tmpname, File::RDWR|File::CREAT|File::EXCL, 0600)
    @tmpname = tmpname
    @@cleanlist << @tmpname
    @data[1] = @tmpfile
    @data[2] = @@cleanlist

    super(@tmpfile)

    # Now we have all the File/IO methods defined, you must not
    # carelessly put bare puts(), etc. after this.

    Dir.rmdir(lock)
  end