# File lib/fileutils.rb, line 1053
1053:     def fu_blksize(st)
1054:       s = st.blksize
1055:       return nil unless s
1056:       return nil if s == 0
1057:       s
1058:     end

      # File lib/fileutils.rb, line 1060
1060:     def fu_default_blksize
1061:       1024
1062:     end

      # File lib/fileutils.rb, line 1044
1044:     def fu_stream_blksize(*streams)
1045:       streams.each do |s|
1046:         next unless s.respond_to?(:stat)
1047:         size = fu_blksize(s.stat)
1048:         return size if size
1049:       end
1050:       fu_default_blksize()
1051:     end

      # File lib/fileutils.rb, line 1033
1033:     def fu_windows?
1034:       /mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM
1035:     end