Class: KineticRuby::Server

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

Instance Method Summary collapse

Constructor Details

#initialize(port = nil, logger = nil) ⇒ Server

Returns a new instance of Server.



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# File 'lib/kinetic_server.rb', line 9

def initialize(port = nil, logger = nil)
  port ||= DEFAULT_KINETIC_PORT
  raise "Invalid Kinetic test server port specified (port: #{port})" if !port || port < 0
  @port = port
  @logger = logger
  @server = nil
  @worker = nil
  @listeners = []
end

Instance Method Details

#report(message = '') ⇒ Object 



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# File 'lib/kinetic_server.rb', line 19

def report(message='')
  $stderr.flush
  $stdout.flush
  puts message
  $stderr.flush
  $stdout.flush
end

#report_banner(message) ⇒ Object 



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# File 'lib/kinetic_server.rb', line 27

def report_banner(message)
  report "\n#{message}\n#{'='*message.length}\n\n"
end

#report_buffer(buf) ⇒ Object 



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# File 'lib/kinetic_server.rb', line 31

def report_buffer(buf)
  bytes = buf.bytes
  row_len = 16
  report "Raw Data (length=#{buf.count}):"
  while !bytes.empty?
    row_len = bytes.count >= row_len ? row_len : bytes.count
    report "  row_len: #{row_len}"
    row = bytes.slice!(row_len)
    report "  row: #{row.inspect}"
    msg = "  "
    row.each do |b|
      msg += sprintf("0x%02X", b)
    end
    report msg
  end
  report
end

#shutdown ⇒ Object 



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# File 'lib/kinetic_server.rb', line 101

def shutdown
  return if @server.nil?
  report "Kinetic Test Server: shutting down..."
  @listeners.each do |client|
    client.join(0.3) if client.alive?
  end
  @listeners = []
  @worker.exit
  @worker = nil
  @server.close
  @server = nil
  report "Kinetic Test Server: shutdown complete"
end

#start ⇒ Object 



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# File 'lib/kinetic_server.rb', line 49

def start
  return unless @server.nil?

  @server = TCPServer.new @port
  @listeners = []

  # Setup handler for signaled shutdown (via ctrl+c)
  trap("INT") do
    report "Kinetic Test Server: INT triggered Kintic Test Server shutdown"
    shutdown
  end

  # Create worker thread for test server to run in so we can continue
  @worker = Thread.new do
    report "Kinetic Test Server: Listening for Kinetic clients..."
    loop do
      @listeners << Thread.start(@server.accept) do |client|
        report "Kinetic Test Server: Connected to #{client.inspect}"
        request = ""
        while request += client.getc # Read characters from socket

          request_match = request.match(/^read\((\d+)\)/)

          if request_match
            len = request_match[1].to_i
            response = "G"*len
            report "Kinetic Test Server: Responding to 'read(#{len})' w/ '#{response}'"
            client.write response
            request = ''

          elsif request =~ /^readProto()/
            proto = KineticRuby::Proto.new
            response = proto.encode_test_message
            report "Kinetic Test Server: Responding to 'read(#{len})' w/ dummy protobuf (#{response.length} bytes)"
            client.write response
            request = ''

          # elsif request.length > 20
          #   report_banner "Received unknown data: length=#{request.length}"
          #   report "  requst.inspect"
          #   report_buffer(request)

          end

        end
        report "Kinetic Test Server: Client #{client.inspect} disconnected!"
      end
    end
  end

end