Class: ZMachine::Connection

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/zmachine/connection.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#channel ⇒ Object

Returns the value of attribute channel.



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# File 'lib/zmachine/connection.rb', line 12

def channel
  @channel
end

Class Method Details

.new(*args) ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 14

def self.new(*args)
  allocate.instance_eval do
    initialize(*args)
    @args = args
    post_init
    self
  end
end

Instance Method Details

#acceptable! ⇒ Object

triggers



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# File 'lib/zmachine/connection.rb', line 129

def acceptable!
  client = @channel.accept
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self, client: client) if ZMachine.debug
  connection = self.class.new(*@args)
  connection.channel = client
  @block.call(connection) if @block
  connection.connection_accepted
  connection
end

#bind(address, port_or_type, &block) ⇒ Object

channel type dispatch



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# File 'lib/zmachine/connection.rb', line 25

def bind(address, port_or_type, &block)
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  klass = (address =~ %r{\w+://}) ? ZMQChannel : TCPChannel
  @channel = klass.new
  @channel.bind(address, port_or_type)
  @block = block
  @block.call(self) if @block && @channel.is_a?(ZMQChannel)
  self
end

#close_connection(after_writing = false) ⇒ Object Also known as: close 



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# File 'lib/zmachine/connection.rb', line 68

def close_connection(after_writing = false)
  @channel.close(after_writing) do
    ZMachine.close_connection(self)
  end
end

#close_connection_after_writing ⇒ Object Also known as: close_after_writing 



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# File 'lib/zmachine/connection.rb', line 76

def close_connection_after_writing
  close_connection(true)
end

#comm_inactivity_timeout ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 82

def comm_inactivity_timeout
  @inactivity_timeout
end

#comm_inactivity_timeout=(value) ⇒ Object Also known as: set_comm_inactivity_timeout 



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# File 'lib/zmachine/connection.rb', line 86

def comm_inactivity_timeout=(value)
  @inactivity_timeout = value
end

#connect(address, port_or_type) {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/zmachine/connection.rb', line 35

def connect(address, port_or_type, &block)
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  klass = (address.nil? || address =~ %r{\w+://}) ? ZMQChannel : TCPChannel
  @channel = klass.new
  @channel.connect(address, port_or_type) if address
  yield self if block_given?
  renew_timer
  self
end

#connectable! ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 139

def connectable!
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  @channel.finish_connecting
  @timer.cancel if @timer # cancel pending connect timer
  mark_active!
  connection_completed if @channel.connected?
  update_events
  nil
end

#connection_accepted ⇒ Object

callbacks



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# File 'lib/zmachine/connection.rb', line 46

def connection_accepted
end

#connection_completed ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 49

def connection_completed
end

#current_events ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 183

def current_events
  if @channel.is_a?(ZMQChannel)
    return SelectionKey::OP_READ
  end

  if bound?
    return SelectionKey::OP_ACCEPT
  end

  if connection_pending?
    return SelectionKey::OP_CONNECT
  end

  events = 0

  events |= SelectionKey::OP_READ if notify_readable?
  events |= SelectionKey::OP_WRITE if notify_writable?

  return events
end

#get_idle_time ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 92

def get_idle_time
  (System.nano_time - @last_activity) / 1_000_000
end

#get_peername ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 96

def get_peername
  if peer = @channel.peer
    ::Socket.pack_sockaddr_in(*peer)
  end
end

#mark_active! ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 220

def mark_active!
  @last_activity = System.nano_time
  renew_timer if @inactivity_timeout
end

#notify_readable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/connection.rb', line 102

def notify_readable?
  true
end

#notify_writable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/connection.rb', line 106

def notify_writable?
  @channel.can_send?
end

#pending_connect_timeout=(value) ⇒ Object Also known as: set_pending_connect_timeout 



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# File 'lib/zmachine/connection.rb', line 110

def pending_connect_timeout=(value)
  @connect_timeout = value
end

#post_init ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 52

def post_init
end

#process_events ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 204

def process_events
  return unless valid?
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  if @channel_key.connectable?
    connectable!
  elsif @channel_key.acceptable?
    acceptable!
  else
    writable! if @channel_key.writable?
    readable! if @channel_key.readable?
  end
rescue Java::JavaNioChannels::CancelledKeyException
  # channel may have been closed by write handler. ignore exception and
  # wait for cleanup
end

#readable! ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 149

def readable!
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  mark_active!
  data = @channel.read_inbound_data
  receive_data(data) if data
  nil
end

#receive_data(data) ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 55

def receive_data(data)
end

#reconnect(server, port_or_type) ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 116

def reconnect(server, port_or_type)
  ZMachine.reconnect(server, port_or_type, self)
end

#register(selector) ⇒ Object

selector registration



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# File 'lib/zmachine/connection.rb', line 167

def register(selector)
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self, fd: @channel.selectable_fd) if ZMachine.debug
  @channel_key = @channel.selectable_fd.register(selector, current_events, self)
end

#renew_timer ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 225

def renew_timer
  @timer.cancel if @timer
  if connection_pending? && @connect_timeout
    @timer = ZMachine.add_timer(@connect_timeout) { ZMachine.close_connection(self, Errno::ETIMEDOUT) }
  elsif @inactivity_timeout
    @timer = ZMachine.add_timer(@inactivity_timeout) { ZMachine.close_connection(self, Errno::ETIMEDOUT) }
  end
end

#send_data(data) ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 120

def send_data(data)
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  data = data.to_java_bytes if data.is_a?(String) # EM compat
  @channel.send_data(data)
  update_events
end

#unbind ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 58

def unbind
end

#update_events ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 177

def update_events
  return unless valid?
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  @channel_key.interest_ops(current_events)
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/connection.rb', line 172

def valid?
  @channel_key &&
  @channel_key.valid?
end

#writable! ⇒ Object 



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# File 'lib/zmachine/connection.rb', line 157

def writable!
  ZMachine.logger.debug("zmachine:connection:#{__method__}", connection: self) if ZMachine.debug
  mark_active!
  @channel.write_outbound_data
  update_events
  nil
end