Class: Baykit::BayServer::Agent::Multiplexer::SpinMultiplexer::ReadIOLapper

Inherits:
Lapper
  • Object
show all
Defined in:
lib/baykit/bayserver/agent/multiplexer/spin_multiplexer.rb

Instance Attribute Summary collapse

Attributes inherited from Lapper

#last_access, #state

Instance Method Summary collapse

Methods inherited from Lapper

#==, #access

Constructor Details

#initialize(agt, st) ⇒ ReadIOLapper

Returns a new instance of ReadIOLapper.



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# File 'lib/baykit/bayserver/agent/multiplexer/spin_multiplexer.rb', line 49

def initialize(agt, st)
  super(st)
  @agent = agt
  st.rudder.set_non_blocking
end

Instance Attribute Details

#agent ⇒ Object (readonly)

Returns the value of attribute agent.



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# File 'lib/baykit/bayserver/agent/multiplexer/spin_multiplexer.rb', line 47

def agent
  @agent
end

Instance Method Details

#lap ⇒ Object 



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# File 'lib/baykit/bayserver/agent/multiplexer/spin_multiplexer.rb', line 55

def lap
  spun = false

  begin
    infile = @state.rudder.io
    eof = false

    begin
      n = @state.rudder.read(@state.read_buf, @state.buf_size)
      #infile.sysread(@state.buf_size, @state.read_buf)
    rescue EOFError => e
      @state.read_buf.clear
      eof = true
    rescue Errno::EAGAIN => e
      BayLog.debug("%s %s", @agent, e)
      return true
    end

    if @state.read_buf.length == 0
      if !eof
        return true
      else
        BayLog.debug("%s Spin read: EOF\\(^o^)/ rd=%s", @agent, infile)
      end
    end

    @agent.send_read_letter(@state, @state.read_buf.length, nil, false)
    return false

  rescue Exception => e
    @agent.send_error_letter(@state, e, false)
    return false
  end
end

#next ⇒ Object 



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# File 'lib/baykit/bayserver/agent/multiplexer/spin_multiplexer.rb', line 90

def next

end