Class: WsIo

Inherits:
Object
  • Object
show all
Defined in:
lib/ws-io.rb

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.ws ⇒ Object

Returns the value of attribute ws.



6
7
8
 
# File 'lib/ws-io.rb', line 6

def ws
  @ws
end

Class Method Details

.escape(output) ⇒ Object 



108
109
110
 
# File 'lib/ws-io.rb', line 108

def escape(output)
  ERB::Util.html_escape(output.gsub(/\e\[[^m]+m/, '')) if output
end

.fake_io ⇒ Object 



66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/ws-io.rb', line 66

def fake_io
  @in_read, @in_write = IO.pipe
  @stdin = STDIN.clone
  STDIN.reopen(@in_read)
  @stdout = STDOUT.clone
  @stderr = STDERR.clone
  @out_read, @out_write = IO.pipe
  STDOUT.reopen(@out_write)
  STDERR.reopen(@out_write)
  g 'fake_io'
end

.input(msg) ⇒ Object 



100
101
102
 
# File 'lib/ws-io.rb', line 100

def input(msg)
  @in_write.puts(msg + "\n")
end

.output ⇒ Object 



104
105
106
 
# File 'lib/ws-io.rb', line 104

def output
  @out_read.gets
end

.start(domains = ["*"], port = 8080) ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
 
# File 'lib/ws-io.rb', line 14

def start(domains = ["*"], port = 8080)
  fake_io

  threads = []

  threads << Thread.start do
    @server = WebSocketServer.new(:accepted_domains => domains, :port => port)
    @server.run() do |ws|
      if ws.path == "/"
        ws.handshake()
        WsIo.ws = ws
        while data = ws.receive()
          WsIo.input(data)
        end
      else
        ws.handshake("404 Not Found")
      end
      stop_server
    end
  end

  threads << Thread.start do
    begin
      yield
    ensure
      stop_server
    end
  end

  threads << Thread.start do
    loop do
      break if @ws && @ws.instance_variable_get(:@socket).closed?
      if @ws
        begin
          @ws.send(escape(output))
        rescue
          # ignore!
        end
      end
    end
  end

  threads.each do |thread|
    thread.join
  end
rescue SignalException, StandardError
  unfake_io
rescue Exception
  unfake_io
  raise
end

.stop ⇒ Object 



95
96
97
98
 
# File 'lib/ws-io.rb', line 95

def stop
  stop_server
  unfake_io
end

.stop_server ⇒ Object 



89
90
91
92
93
 
# File 'lib/ws-io.rb', line 89

def stop_server
  ws.close
  @server.tcp_server.close
  g 'stop_server'
end

.unfake_io ⇒ Object 



78
79
80
81
82
83
84
85
86
87
 
# File 'lib/ws-io.rb', line 78

def unfake_io
  STDIN.reopen(@stdin)
  STDOUT.reopen(@stdout)
  STDERR.reopen(@stderr)
  @in_read.close
  @in_write.close
  @out_write.close
  @out_read.close
  g 'unfake_io'
end

Instance Method Details

#g(*args) ⇒ Object 



11
 
# File 'lib/ws-io.rb', line 11

def g(*args);end