class Scanner

# File lib/networkwatcherd/scanner.rb, line 6
def initialize (nd=@@default_nd_value)
        @nd = nd
        @ip_old_list = Array.new(@nd)
        @ip_new_list = Array.new(@nd)
        @ip_new_list.fill("")
        @ip_old_list.fill("")
end

# File lib/networkwatcherd/scanner.rb, line 14
def scan(ip_pattern="192.168.1",time=300,timeout=50.5) 
        #@ip_old_list ||= Array.new(@nd)
        @ip_old_list = @ip_new_list.map(&:clone)      
        @ip_new_list = Array.new(@nd)
        @ip_new_list.fill("")
        IPScanner.network_devices(@nd,ip_pattern) { |d|
                @ip_new_list[d.value] = d 
        }                     #Get the new fags.
        new_fags = []
        (0..@nd).each do |n|  
                if @ip_new_list[n] != "" and @ip_old_list[n] == ""
                        new_fags.push(@ip_new_list[n])
                end
        end
                #p new_fags if !new_fags.empty?
        Notification.send("New Devices",new_fags) if !new_fags.empty?
end