Class: Node

Inherits:
Object
  • Object
show all
Defined in:
lib/node.rb

Constant Summary collapse

ACK = 
{ 't' => 'ACK', 'name' => ENV['LOGNAME'] }

Instance Method Summary collapse

Constructor Details

#initialize(domain, port) ⇒ Node

Returns a new instance of Node.



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# File 'lib/node.rb', line 9

def initialize(domain, port)
  @socket = DemoSocket.connect(domain, port)
  @current_role = nil
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/node.rb', line 16

def run
  loop do
    msg = @socket.recv
    case msg['t']
    when 'HRT'
      @socket.send(ACK)
    when 'ROLE'
      puts "You, my friend, have a new role. It is '#{msg['role']}'."
      set_role msg
      @socket.send(ACK)
    when 'STOP'
      puts "Cancelling current role."
      stop_role
      @socket.send(ACK)
    when 'DOWN'
      puts "It's nothing to be concerned about, but you're being temporarily disabled."
      disable_role
      @socket.send(ACK)
    when 'UP'
      puts "You're back!"
      enable_role
      @socket.send(ACK)
    when 'LINKDOWN'
      puts "Temporarily disabling the '#{msg['type']}' link to #{msg['addr']}..."
      disable_link msg['type'], msg['addr']
      @socket.send(ACK)
    when 'LINKUP'
      puts "Reenabling the '#{msg['type']}' link to #{msg['addr']}!"
      enable_link msg['type'], msg['addr']
      @socket.send(ACK)
    when 'STATE'
      @socket.send get_state.merge('status' => @status)
    when 'DIE'
      puts msg['err']
      exit
    end
  end
end