# File lib/fileutils.rb, line 1069
1069:     def fu_blksize(st)
1070:       s = st.blksize
1071:       return nil unless s
1072:       return nil if s == 0
1073:       s
1074:     end

      # File lib/fileutils.rb, line 1076
1076:     def fu_default_blksize
1077:       1024
1078:     end

      # File lib/fileutils.rb, line 1060
1060:     def fu_stream_blksize(*streams)
1061:       streams.each do |s|
1062:         next unless s.respond_to?(:stat)
1063:         size = fu_blksize(s.stat)
1064:         return size if size
1065:       end
1066:       fu_default_blksize()
1067:     end

      # File lib/fileutils.rb, line 1049
1049:     def fu_windows?
1050:       /mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM
1051:     end