Class: Teamd::Discover::Peer

Inherits:
Object
  • Object
show all
Defined in:
lib/teamd/discover/peer.rb

Defined Under Namespace

Classes: Timeout

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Peer

Returns a new instance of Peer.



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# File 'lib/teamd/discover/peer.rb', line 17

def initialize
  @transport ||= Teamd::Discover::Transport.new
  @registry  ||= Teamd::Discover::Registry.new
end

Class Method Details

.domain ⇒ Object 



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# File 'lib/teamd/discover/peer.rb', line 13

def domain
  Socket.gethostname.split(".",2).last rescue "local"
end

.tid ⇒ Object 



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# File 'lib/teamd/discover/peer.rb', line 10

def tid
  @tid ||= SecureRandom.hex(8)
end

Instance Method Details

#announce(token = nil) ⇒ Object 



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# File 'lib/teamd/discover/peer.rb', line 55

def announce token=nil
  @registry.add(Cluster.new(token: token,name:Peer.domain)) if token
  @transport.transmit Message::ClusterAnnouncement.new clusters: @registry.pack
end

#discover(timeout = 3) ⇒ Object 



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# File 'lib/teamd/discover/peer.rb', line 29

def discover timeout=3
  input   = QueueWithTimeout.new
  Thread.new do
    begin
      message = @transport.receive
      if message.is_a? Message::ClusterAnnouncement
        input.push message.clusters.first.token
        Thread.kill
      end
      raise Exception
    rescue
      retry
    end
  end
  Thread.new do
    loop do
      @transport.transmit Message.build("discovery" => true)
      sleep 1
    end
  end
  begin
    input.pop_with_timeout timeout
  rescue ThreadError
    nil
  end
end

#serve ⇒ Object 



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# File 'lib/teamd/discover/peer.rb', line 21

def serve
  keep_alive
  loop do
    message = @transport.receive
    process_discovery(message)    if message.is_a? Message::DiscoveryRequest
    process_announcement(message) if message.is_a? Message::ClusterAnnouncement
  end
end