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EventMachine::DNS::Socket

Public Class Methods

new() click to toggle source
# File lib/em/resolver.rb, line 63
def initialize
  @nameserver = nil
end
open() click to toggle source
# File lib/em/resolver.rb, line 59
def self.open
  EventMachine::open_datagram_socket('0.0.0.0', 0, self)
end

Public Instance Methods

nameserver() click to toggle source
# File lib/em/resolver.rb, line 97
def nameserver
  @nameserver || Resolver.nameserver
end
nameserver=(ns) click to toggle source
# File lib/em/resolver.rb, line 93
def nameserver=(ns)
  @nameserver = ns
end
post_init() click to toggle source
# File lib/em/resolver.rb, line 67
def post_init
  @requests = {}
  EM.add_periodic_timer(0.1, &method(:tick))
end
receive_data(data) click to toggle source

Decodes the packet, looks for the request and passes the response over to the requester

# File lib/em/resolver.rb, line 103
def receive_data(data)
  msg = nil
  begin
    msg = Resolv::DNS::Message.decode data
  rescue
  else
    req = @requests[msg.id]
    if req
      @requests.delete(msg.id)
      req.receive_answer(msg)
    end
  end
end
register_request(id, req) click to toggle source
# File lib/em/resolver.rb, line 81
def register_request(id, req)
  if @requests.has_key?(id)
    raise RequestIdAlreadyUsed
  else
    @requests[id] = req
  end
end
send_packet(pkt) click to toggle source
# File lib/em/resolver.rb, line 89
def send_packet(pkt)
  send_datagram(pkt, nameserver, 53)
end
tick() click to toggle source
# File lib/em/resolver.rb, line 75
def tick
  @requests.each do |id,req|
    req.tick
  end
end
unbind() click to toggle source
# File lib/em/resolver.rb, line 72
def unbind
end

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