From: Martin Durai <martin@...>
Date: 2007-11-22T16:16:38+09:00
Subject: range checking or seek method

Hi friends i was in a process of creating a ring buffer and i have done
read, write methods for it. i need seek methods which does range
checking. A seek method should take mumber as a argument and return
nothing. seek changes the read position. I have attached my coding with
it please help me with code to do seek method. if needs change read aned
write method also.

class RingBuffer

  # Instanciate a ring buffer of the given size.
  # The buffer will contain at most +size+ elements

  def initialize(size)

    @max = size

    @buffer = Array.new

    end


  def read(number_of_bytes)
  #------------------------------------

    buffer_size=@buffer.length

    puts buffer_size

    if number_of_bytes < buffer_size

      @newBuffer = Array.new

      @newBuffer = @buffer[0..number_of_bytes]

      puts "Inside no of bytes "

      @newBuffer.each() { |block| puts block.to_s}

      else

        @newBuffer = Array.new

        @newBuffer = @buffer[0..buffer_size]

        puts "Inside buffer size "

        @newBuffer.each() { |block| puts block.to_s}

      end

    end

      def write(string_value)
    #-----------------------------

      buffer_size=@buffer.length

      puts buffer_size

      if buffer_size > @max

        @buffer.shift

        else

          @buffer << string_value

      end

      buffer_size=@buffer.length

      puts buffer_size

    end

    def seek

    end




  end
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