Class: Zashoku::Net::Server

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(port) ⇒ Server

Returns a new instance of Server.



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# File 'lib/core/net/server.rb', line 14

def initialize(port)
  @clients = []
  @client_queue = {}
  @semaphore = Mutex.new
  @handler = ->(message) {}
  @server =
    begin
      TCPServer.new(port)
    rescue Errno::EADDRINUSE
      raise "error, port #{port} is busy"
    end
  @server_thread = Thread.new { serve_clients! }
  Zashoku.logger.info("serving customers on localhost:#{port}")
end

Instance Attribute Details

#clients ⇒ Object

Returns the value of attribute clients.



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# File 'lib/core/net/server.rb', line 12

def clients
  @clients
end

#handler ⇒ Object

Returns the value of attribute handler.



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# File 'lib/core/net/server.rb', line 12

def handler
  @handler
end

Instance Method Details

#event(e) ⇒ Object 



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# File 'lib/core/net/server.rb', line 33

def event(e)
  clients.each do |client|
    client.c.puts JSON.generate(e)
  end
end

#exit ⇒ Object 



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# File 'lib/core/net/server.rb', line 29

def exit
  @server_thread.exit
end

#handle(client) ⇒ Object 



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# File 'lib/core/net/server.rb', line 39

def handle(client)
  expecting_helo = true
  loop do
    message =
      begin
        JSON.parse(client.c.readline.chomp)
      rescue EOFError
        { 'msg' => 'disconnect' }
      end
    if expecting_helo and message['msg'] != 'helo'
      Zashoku.logger.warn("#{client} did not say helo, rude!")
    end
    expecting_helo = false
    begin
      response = @handler.call(message)
      Zashoku.logger.debug("sending message to #{client}")
      client.c.puts(
        if message['raw']
          response.length.to_s + Zashoku::EOF + response + Zashoku::EOF
        else
          JSON.generate(response: response)
        end
      )
    rescue Errno::EPIPE
      break
    else
      break unless response
    end
  end
  Zashoku.logger.info("bye bye #{client}")
  @clients.delete(client)
  @client_queue.delete(client)
  client.c.close
end

#serve_clients! ⇒ Object 



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# File 'lib/core/net/server.rb', line 74

def serve_clients!
  Thread.abort_on_exception = true
  loop do
    Thread.start(@server.accept) do |client|
      csan = ClientSan.new(client)
      Zashoku.logger.info("#{csan} connected")
      @clients << csan
      @client_queue[csan] = Queue.new
      handle(csan)
    end
  end
end