Class: ProconBypassMan::ExternalInput::Channels::TCPIPChannel

Inherits:
Base
  • Object
show all
Defined in:
lib/procon_bypass_man/external_input/channels/tcpip_channel.rb

Defined Under Namespace

Classes: AppServer, ShutdownSignal

Instance Method Summary collapse

Constructor Details

#initialize(port:) ⇒ TCPIPChannel 



45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
# File 'lib/procon_bypass_man/external_input/channels/tcpip_channel.rb', line 45

def initialize(port: )
  @port = port
  super()

  begin
    @server = AppServer.new('0.0.0.0', @port)
  rescue Errno::EADDRINUSE # NOTE: Address already in use - bind(2) for "0.0.0.0" port XXXX
    ProconBypassMan::SendErrorCommand.execute(error: "[ExternalInput][TCPIPChannel] 起動に失敗しました。#{e.message}")
    @server_thread = Thread.start {}
    return
  end

  # NOTE: masterプロセスで起動する
  @server_thread = Thread.start do
    begin
      loop do
        @server.start_server
        @server.run
      end
    rescue Errno::EPIPE, EOFError, Errno::ECONNRESET => e
      ProconBypassMan::SendErrorCommand.execute(error: "[ExternalInput][TCPIPChannel] #{e.message}(#{e})")
      sleep(5)

      @server.shutdown
      retry
    rescue ShutdownSignal => e
      ProconBypassMan::SendErrorCommand.execute(error: "[ExternalInput][TCPIPChannel] ShutdownSignalを受け取りました。終了します。")
      @server.shutdown
    rescue => e
      ProconBypassMan::SendErrorCommand.execute(error: "[ExternalInput][TCPIPChannel] #{e.message}(#{e})")
    end
  end
end

Instance Method Details

#alive_server? ⇒ Boolean 



113
114
115
116
117
118
119
120
121
122
123
 
# File 'lib/procon_bypass_man/external_input/channels/tcpip_channel.rb', line 113

def alive_server?
  return false if not @server_thread.alive?

  begin
    TCPSocket.new('0.0.0.0', @port).close
  rescue Errno::ECONNREFUSED, Errno::ECONNRESET
    return false
  end

  true
end

#display_name_for_boot_message ⇒ Object 



125
126
127
 
# File 'lib/procon_bypass_man/external_input/channels/tcpip_channel.rb', line 125

def display_name_for_boot_message
  "TCPIP(port: #{@port})"
end

#read ⇒ String, NilClass

NOTE: bypassプロセスから呼ばれ、masterプロセスへ繋ぐ



81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
 
# File 'lib/procon_bypass_man/external_input/channels/tcpip_channel.rb', line 81

def read
  @socket ||= TCPSocket.new('0.0.0.0', @port)
  read_command = "\n"
  @socket.write(read_command)
  response = @socket.gets&.strip
  # ProconBypassMan.logger.debug { "Received: #{response}" }

  case response
  when /^{/
    return response
  when /^EMPTY/, ''
    return nil
  else
    ProconBypassMan.logger.warn { "[ExternalInput][TCPIPChannel] Unknown response(#{response}, codepoints: #{response.codepoints})" }
    return nil
  end
rescue Errno::EPIPE, EOFError => e
  @socket = nil
  sleep(10)
  ProconBypassMan.logger.error { "[ExternalInput][TCPIPChannel] #{e.message}!!!!!!!(#{e})" }
  retry
rescue => e
  @socket = nil
  ProconBypassMan.logger.error { "[ExternalInput][TCPIPChannel] #{e.message} が起きました(#{e})" }
  return nil
end

#shutdown ⇒ Object 



108
109
110
111
 
# File 'lib/procon_bypass_man/external_input/channels/tcpip_channel.rb', line 108

def shutdown
  ProconBypassMan.logger.info { "[ExternalInput][TCPIPChannel] shutdown" }
  @server_thread.raise(ShutdownSignal)
end