Class: FFWD::UDP::Bind

Inherits:
Object
  • Object
show all
Includes:
Reporter
Defined in:
lib/ffwd/protocol/udp/bind.rb

Constant Summary collapse

DEFAULT_REBIND_TIMEOUT = 
10
DEFAULT_RECEIVE_BUFFER_SIZE = 
nil

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Reporter

build_meta, included, #increment, map_meta, #report!, #reporter_data

Constructor Details

#initialize(core, log, host, port, connection, config) ⇒ Bind

Returns a new instance of Bind.



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# File 'lib/ffwd/protocol/udp/bind.rb', line 45

def initialize core, log, host, port, connection, config
  @log = log
  @peer = "#{host}:#{port}"
  @reporter_meta = {:component => connection.plugin_type, :listen => @peer}

  rebind_timeout = config[:rebind_timeout]

  @socket = nil

  info = "udp://#{@peer}"

  r = FFWD.retry :timeout => rebind_timeout do |a|
    @socket = EM.open_datagram_socket host, port, connection, self, core, config

    if size = config[:receive_buffer_size]
      log.debug "Setting receive buffer size to #{size}"
      @socket.set_sock_opt Socket::SOL_SOCKET, Socket::SO_RCVBUF, size
    end

    log.info "Bind on #{info} (attempt #{a})"
    log.info "  config: #{config.inspect}"
  end

  r.error do |a, t, e|
    log.warning "Bind on #{info} failed, retry ##{a} in #{t}s: #{e}"

    if @socket
      @socket.close
      @socket = nil
    end
  end

  r.depend_on core

  core.stopping do
    if @socket
      @socket.unbind
      @socket = nil
    end

    log.info "Unbound #{info}"
  end
end

Instance Attribute Details

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/ffwd/protocol/udp/bind.rb', line 43

def config
  @config
end

#log ⇒ Object (readonly)

Returns the value of attribute log.



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# File 'lib/ffwd/protocol/udp/bind.rb', line 43

def log
  @log
end

#reporter_meta ⇒ Object (readonly)

Returns the value of attribute reporter_meta.



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# File 'lib/ffwd/protocol/udp/bind.rb', line 43

def reporter_meta
  @reporter_meta
end

Class Method Details

.prepare(opts) ⇒ Object 



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# File 'lib/ffwd/protocol/udp/bind.rb', line 29

def self.prepare opts
  opts[:rebind_timeout] ||= DEFAULT_REBIND_TIMEOUT
  opts[:receive_buffer_size] ||= DEFAULT_RECEIVE_BUFFER_SIZE
  opts
end