Class: ZMachine::TCPChannel

Inherits:
Channel
  • Object
show all
Defined in:
lib/zmachine/tcp_channel.rb

Instance Attribute Summary

Attributes inherited from Channel

#raw, #socket

Instance Method Summary collapse

Methods inherited from Channel

#can_send?, #close, #send_data, #write_outbound_data

Constructor Details

#initialize ⇒ TCPChannel

Returns a new instance of TCPChannel.



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# File 'lib/zmachine/tcp_channel.rb', line 11

def initialize
  super
  @buffer = Thread.current[:tcp_channel_buffer] ||= ByteBuffer.allocate(1024 * 1024)
end

Instance Method Details

#accept ⇒ Object 



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# File 'lib/zmachine/tcp_channel.rb', line 32

def accept
  ZMachine.logger.debug("zmachine:tcp_channel:#{__method__}", channel: self) if ZMachine.debug
  client_socket = @socket.accept
  return unless client_socket
  client_socket.configure_blocking(false)
  channel = TCPChannel.new
  channel.socket = client_socket
  channel
end

#bind(address, port) ⇒ Object 



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# File 'lib/zmachine/tcp_channel.rb', line 20

def bind(address, port)
  ZMachine.logger.debug("zmachine:tcp_channel:#{__method__}", channel: self) if ZMachine.debug
  address = InetSocketAddress.new(address, port)
  @socket = ServerSocketChannel.open
  @socket.configure_blocking(false)
  @socket.bind(address)
end

#bound? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/tcp_channel.rb', line 28

def bound?
  @socket.is_a?(ServerSocketChannel) && @socket.socket.bound?
end

#close! ⇒ Object 



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# File 'lib/zmachine/tcp_channel.rb', line 83

def close!
  ZMachine.logger.debug("zmachine:tcp_channel:#{__method__}", channel: self) if ZMachine.debug
  @socket.close
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/tcp_channel.rb', line 88

def closed?
  @socket.socket.closed?
end

#connect(address, port) ⇒ Object 



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# File 'lib/zmachine/tcp_channel.rb', line 42

def connect(address, port)
  ZMachine.logger.debug("zmachine:tcp_channel:#{__method__}", channel: self) if ZMachine.debug
  address = InetSocketAddress.new(address, port)
  @socket = SocketChannel.open
  @socket.configure_blocking(false)
  if socket.connect(address)
    # Connection returned immediately. Can happen with localhost
    # connections.
    # WARNING, this code is untested due to lack of available test
    # conditions.  Ought to be be able to come here from a localhost
    # connection, but that doesn't happen on Linux. (Maybe on FreeBSD?)
    raise RuntimeError.new("immediate-connect unimplemented")
  end
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/tcp_channel.rb', line 67

def connected?
  return false if @socket.is_a?(ServerSocketChannel)
  @socket.connected?
end

#connection_pending? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/zmachine/tcp_channel.rb', line 57

def connection_pending?
  @socket.connection_pending?
end

#finish_connecting ⇒ Object 



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# File 'lib/zmachine/tcp_channel.rb', line 61

def finish_connecting
  ZMachine.logger.debug("zmachine:tcp_channel:#{__method__}", channel: self) if ZMachine.debug
  return unless connection_pending?
  @socket.finish_connect
end

#peer ⇒ Object 



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

def peer
  [@socket.socket.port, @socket.socket.inet_address.host_address]
end

#read_inbound_data ⇒ Object

Raises:

  • (IOException) 


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# File 'lib/zmachine/tcp_channel.rb', line 72

def read_inbound_data
  ZMachine.logger.debug("zmachine:tcp_channel:#{__method__}", channel: self) if ZMachine.debug
  @buffer.clear
  raise IOException.new("EOF") if @socket.read(@buffer) == -1
  @buffer.flip
  return if @buffer.limit == 0
  data = java.util.Arrays.copyOfRange(@buffer.array, @buffer.position, @buffer.limit)
  data = String.from_java_bytes(data) unless @raw
  data
end

#selectable_fd ⇒ Object 



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# File 'lib/zmachine/tcp_channel.rb', line 16

def selectable_fd
  @socket
end