Class: IRCMachine::IRCSocketAdapter

Inherits:
Object
  • Object
show all
Defined in:
lib/ircmachine/ircsocketadapter.rb

Constant Summary collapse

IRC_MAX_DATA =

As per RFC 2812:

512

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(socket) ⇒ IRCSocketAdapter

Returns a new instance of IRCSocketAdapter.



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# File 'lib/ircmachine/ircsocketadapter.rb', line 8

def initialize(socket)
  @socket       = socket
  @messages     = []
  @messages_mtx = Mutex.new
  @buffer       = ''
  @buffer_mtx   = Mutex.new
end

Instance Attribute Details

#socket ⇒ Object (readonly)

Returns the value of attribute socket.



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# File 'lib/ircmachine/ircsocketadapter.rb', line 3

def socket
  @socket
end

Instance Method Details

#recv(blocking = true) ⇒ Object 



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# File 'lib/ircmachine/ircsocketadapter.rb', line 16

def recv(blocking = true)
  # If we have data to return already, return it.
  @messages_mtx.synchronize { return @messages.shift unless @messages.empty? }

  got_msg = false
  msg = nil
  until got_msg
    data =
      if blocking
        @socket.recv(IRC_MAX_DATA)
      else
        @socket.recv_nonblock(IRC_MAX_DATA)
      end

    unless data.nil?
      @buffer_mtx.synchronize do
        data.each_char do |c|
          @buffer << c

          if c == "\n"
            @messages_mtx.synchronize do
              begin
                msg = IRCMachine::Message.parse(@buffer)
                @messages << msg
              rescue ArgumentError
                # => Not recognised; ignore it.
              end
            end
            @buffer = ''
          elsif @buffer.size > IRC_MAX_DATA
            # Too long.  Drop it.
            @buffer = ''
          end
        end
      end
    end

    msg = @messages_mtx.synchronize { @messages.shift unless @messages.empty? }
    got_msg = !blocking || !msg.nil?
  end

  msg
end

#recv_nonblock ⇒ Object 



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# File 'lib/ircmachine/ircsocketadapter.rb', line 60

def recv_nonblock
  recv(false)
end

#send(data) ⇒ Object 



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# File 'lib/ircmachine/ircsocketadapter.rb', line 64

def send(data)
  msg = IRCMachine::Message.parse(data)
  fail ArgumentError, "Invalid IRC data." if msg.nil?

  @socket.send(msg.to_s)
end