Class: Myxi::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/myxi/server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Server

Returns a new instance of Server.



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# File 'lib/myxi/server.rb', line 9

def initialize(options = {})
  @options = options
  @selector = NIO::Selector.new
  @timers = Timers::Group.new
  @sessions = []
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/myxi/server.rb', line 7

def options
  @options
end

#selector ⇒ Object (readonly)

Returns the value of attribute selector.



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# File 'lib/myxi/server.rb', line 7

def selector
  @selector
end

#sessions ⇒ Object (readonly)

Returns the value of attribute sessions.



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# File 'lib/myxi/server.rb', line 7

def sessions
  @sessions
end

#timers ⇒ Object (readonly)

Returns the value of attribute timers.



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# File 'lib/myxi/server.rb', line 7

def timers
  @timers
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/myxi/server.rb', line 20

def run
  Myxi::Exchange.declare_all
  @listener = Listener.new(self, options)

  unless options[:touch_interval] == 0
    @timers.every(options[:touch_interval] || 60) do
      @sessions.each(&:touch)
    end
  end

  Signal.trap("TERM") do
    if @options[:shutdown_time]
      @timers.after(0) do
        Myxi.logger.info("Received TERM signal, beginning #{@options[:shutdown_time]} second shutdown.")
        @listener.close
      end

      @timers.every(1) do
        @shutdown_timer ||= 0
        @sessions.each do |session|
          if session.hash % @options[:shutdown_time] == @shutdown_timer % @options[:shutdown_time]
            session.close
          end
        end
        @shutdown_timer += 1

        if @sessions.size == 0
          Myxi.logger.info("All clients disconnected. Shutdown complete.")
          Process.exit(0)
        end
      end
      wakeup
    else
      @timers.after(0) do
        Myxi.logger.info("Received TERM signal, shutting down immediately")
          Process.exit(0)
      end
    end
  end

  loop do
    wi = @timers.wait_interval
    if wi > 0
      wait_interval = wi
    else
      wait_interval = 0
    end

    selector.select(wait_interval) do |monitor|
      begin
        monitor.value.handle_r if monitor.readable?
        monitor.value.handle_w if monitor.writeable?
      rescue => e
        # Try to recover wherever possible
        if monitor && monitor.value
          if monitor.value == @listener
            raise
          else
            monitor.value.close rescue nil
          end
        else
          raise
        end
        begin
          Myxi.logger.info(e.class.to_s + ' ' + e.message.to_s)
          e.backtrace.each do |line|
            Myxi.logger.info('  ' + line)
          end
        rescue
        end
      end
    end
    @timers.fire
  end

end

#wakeup ⇒ Object 



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# File 'lib/myxi/server.rb', line 16

def wakeup
  @selector.wakeup
end