Class: Gopher::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/gopher2000/server.rb

Overview

main class which will listen on a specified port, and pass requests to an Application class

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(a) ⇒ Server

constructor

Parameters:

  • a (Application) —

    instance of Gopher::Application we want to run



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# File 'lib/gopher2000/server.rb', line 13

def initialize(a)
  @app = a
end

Instance Attribute Details

#app ⇒ Object

Returns the value of attribute app.



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# File 'lib/gopher2000/server.rb', line 7

def app
  @app
end

Instance Method Details

#env ⇒ String

Returns environment specified in config.

Returns:

  • (String) —

    environment specified in config



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# File 'lib/gopher2000/server.rb', line 34

def env
  @app.config[:env] || 'development'
end

#host ⇒ String

Returns name of the host specified in our config.

Returns:

  • (String) —

    name of the host specified in our config



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# File 'lib/gopher2000/server.rb', line 20

def host
  @app.config[:host] ||= '0.0.0.0'
end

#port ⇒ Integer

Returns port specified in our config.

Returns:

  • (Integer) —

    port specified in our config



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# File 'lib/gopher2000/server.rb', line 27

def port
  @app.config[:port] ||= 70
end

#run! ⇒ Object

main app loop. called via at_exit block defined in DSL



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# File 'lib/gopher2000/server.rb', line 41

def run!
  EventMachine::run do
    Signal.trap("INT") {
      puts "It's a trap!"
      EventMachine.stop
    }
    Signal.trap("TERM") {
      puts "It's a trap!"
      EventMachine.stop
    }

    EventMachine.kqueue = true if EventMachine.kqueue?
    EventMachine.epoll = true if EventMachine.epoll?


    STDERR.puts "start server at #{host} #{port}"
    if @app.non_blocking?
      STDERR.puts "Not blocking on requests"
    end


    EventMachine::start_server(host, port, Gopher::Dispatcher) do |conn|
      #
      # check if we should reload any scripts before moving along
      #
      @app.reload_stale

      #
      # roughly matching sinatra's style of duping the app to respond
      # to requests, @see http://www.sinatrarb.com/intro#Request/Instance%20Scope
      #
      # this essentially means we have 'one instance per request'
      #
      conn.app = @app.dup
    end
  end
end