Class: RSMP::Proxy

Inherits:
Object
  • Object
show all
Includes:
Inspect, Logging, Notifier, Task
Defined in:
lib/rsmp/proxy.rb

Direct Known Subclasses

SiteProxy, SupervisorProxy

Constant Summary collapse

WRAPPING_DELIMITER = 
"\f"

Instance Attribute Summary collapse

Attributes included from Task

#task

Attributes included from Notifier

#listeners

Attributes included from Logging

#logger

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Task

#initialize_task, #restart, #run, #start, #stop, #task_status, #wait, #wait_for_condition

Methods included from Inspect

#inspector

Methods included from Notifier

#add_listener, #clear_deferred_notify, #deferred_notify, #dequeue_notify, #distribute_error, #initialize_distributor, #notify, #notify_without_defer, #remove_listener

Methods included from Logging

#initialize_logging

Constructor Details

#initialize(options) ⇒ Proxy

Returns a new instance of Proxy.



17
18
19
20
21
22
23
24
25
26
 
# File 'lib/rsmp/proxy.rb', line 17

def initialize options
  @node = options[:node]
  initialize_logging options
  initialize_distributor
  initialize_task
  setup options
  clear
  @state = :disconnected
  @state_condition = Async::Notification.new
end

Instance Attribute Details

#archive ⇒ Object (readonly)

Returns the value of attribute archive.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def archive
  @archive
end

#collector ⇒ Object (readonly)

Returns the value of attribute collector.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def collector
  @collector
end

#connection_info ⇒ Object (readonly)

Returns the value of attribute connection_info.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def connection_info
  @connection_info
end

#core_version ⇒ Object (readonly)

Returns the value of attribute core_version.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def core_version
  @core_version
end

#ip ⇒ Object (readonly)

Returns the value of attribute ip.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def ip
  @ip
end

#node ⇒ Object (readonly)

Returns the value of attribute node.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def node
  @node
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def port
  @port
end

#state ⇒ Object (readonly)

Returns the value of attribute state.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def state
  @state
end

#sxl ⇒ Object (readonly)

Returns the value of attribute sxl.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def sxl
  @sxl
end

Class Method Details

.version_meets_requirement?(version, requirement) ⇒ Boolean

Use Gem class to check version requirement Requirement must be a string like ‘1.1’, ‘>=1.0.3’ or ‘<2.1.4’, or list of strings, like [‘<=1.4’,‘<1.5’]

Returns:

  • (Boolean) 


673
674
675
 
# File 'lib/rsmp/proxy.rb', line 673

def self.version_meets_requirement? version, requirement
  Gem::Requirement.new(requirement).satisfied_by?(Gem::Version.new(version))
end

Instance Method Details

#acknowledge(original) ⇒ Object

Raises:

  • (InvalidArgument) 


496
497
498
499
500
501
502
 
# File 'lib/rsmp/proxy.rb', line 496

def acknowledge original
  raise InvalidArgument unless original
  ack = MessageAck.build_from(original)
  ack.original = original.clone
  send_message ack, "for #{ack.original.type} #{original.m_id_short}"
  check_ingoing_acknowledged original
end

#acknowledged_first_ingoing(message) ⇒ Object 



569
570
 
# File 'lib/rsmp/proxy.rb', line 569

def acknowledged_first_ingoing message
end

#acknowledged_first_outgoing(message) ⇒ Object 



566
567
 
# File 'lib/rsmp/proxy.rb', line 566

def acknowledged_first_outgoing message
end

#author ⇒ Object 



642
643
644
 
# File 'lib/rsmp/proxy.rb', line 642

def author
  @node.site_id
end

#buffer_message(message) ⇒ Object 



361
362
363
364
 
# File 'lib/rsmp/proxy.rb', line 361

def buffer_message message
  # TODO
  #log "Cannot send #{message.type} because the connection is closed.", message: message, level: :error
end

#check_ack_timeout(now) ⇒ Object 



304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
 
# File 'lib/rsmp/proxy.rb', line 304

def check_ack_timeout now
  timeout = @site_settings['timeouts']['acknowledgement']
  # hash cannot be modify during iteration, so clone it
  @awaiting_acknowledgement.clone.each_pair do |m_id, message|
    latest = message.timestamp + timeout
    if now > latest
      str = "No acknowledgements for #{message.type} #{message.m_id_short} within #{timeout} seconds"
      log str, level: :error
      begin
        close
      ensure
        notify_error MissingAcknowledgment.new(str)
      end
    end
  end
end

#check_core_version(message) ⇒ Object 



482
483
484
485
486
487
488
489
490
491
 
# File 'lib/rsmp/proxy.rb', line 482

def check_core_version message
  versions = core_versions
  # find versions that both we and the client support
  candidates = message.versions & versions
  if candidates.any?
    @core_version = candidates.sort_by { |v| Gem::Version.new(v) }.last  # pick latest version
  else
    raise HandshakeError.new "RSMP versions [#{message.versions.join(',')}] requested, but only [#{versions.join(',')}] supported."
  end
end

#check_ingoing_acknowledged(message) ⇒ Object 



559
560
561
562
563
564
 
# File 'lib/rsmp/proxy.rb', line 559

def check_ingoing_acknowledged message
  unless @ingoing_acknowledged[message.type]
    @ingoing_acknowledged[message.type] = true
    acknowledged_first_ingoing message
  end
end

#check_outgoing_acknowledged(message) ⇒ Object

TODO this might be better handled by a proper event machine using e.g. the EventMachine gem



552
553
554
555
556
557
 
# File 'lib/rsmp/proxy.rb', line 552

def check_outgoing_acknowledged message
  unless @outgoing_acknowledged[message.type]
    @outgoing_acknowledged[message.type] = true
    acknowledged_first_outgoing message
  end
end

#check_watchdog_timeout(now) ⇒ Object 



321
322
323
324
325
326
327
328
329
330
 
# File 'lib/rsmp/proxy.rb', line 321

def check_watchdog_timeout now
  timeout = @site_settings['timeouts']['watchdog']
  latest = @latest_watchdog_received + timeout
  left = latest - now
  if left < 0
    str = "No Watchdog received within #{timeout} seconds"
    log str, level: :warning
    notify MissingWatchdog.new(str)
  end
end

#clear ⇒ Object 



150
151
152
153
154
155
156
157
158
159
160
161
 
# File 'lib/rsmp/proxy.rb', line 150

def clear
  @awaiting_acknowledgement = {}
  @latest_watchdog_received = nil
  @watchdog_started = false
  @version_determined = false
  @ingoing_acknowledged = {}
  @outgoing_acknowledged = {}
  @latest_watchdog_send_at = nil

  @acknowledgements = {}
  @acknowledgement_condition = Async::Notification.new
end

#clock ⇒ Object 



134
135
136
 
# File 'lib/rsmp/proxy.rb', line 134

def clock
  @node.clock
end

#close ⇒ Object

close connection, but keep our main task running so we can reconnect



44
45
46
47
48
49
50
51
52
53
54
55
56
 
# File 'lib/rsmp/proxy.rb', line 44

def close
  log "Closing connection", level: :warning
  close_stream
  close_socket
  stop_reader
  set_state :disconnected
  notify_error DisconnectError.new("Connection was closed")

  # stop timer
  # as we're running inside the timer, code after stop_timer() will not be called,
  # unless it's in the ensure block
  stop_timer
end

#close_socket ⇒ Object 



83
84
85
86
87
 
# File 'lib/rsmp/proxy.rb', line 83

def close_socket
  @socket.close if @socket
ensure
  @socket = nil
end

#close_stream ⇒ Object 



77
78
79
80
81
 
# File 'lib/rsmp/proxy.rb', line 77

def close_stream
  @stream.close if @stream
ensure
  @stream = nil
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


142
143
144
 
# File 'lib/rsmp/proxy.rb', line 142

def connected?
  @state == :connected || @state == :ready
end

#core_versions ⇒ Object 



476
477
478
479
480
 
# File 'lib/rsmp/proxy.rb', line 476

def core_versions
  return [RSMP::Schema.latest_core_version] if @site_settings["core_versions"] == 'latest'
  return RSMP::Schema.core_versions if @site_settings["core_versions"] == 'all'
  [@site_settings["core_versions"]].flatten
end

#disconnect ⇒ Object 



33
34
 
# File 'lib/rsmp/proxy.rb', line 33

def disconnect
end

#disconnected? ⇒ Boolean

Returns:

  • (Boolean) 


146
147
148
 
# File 'lib/rsmp/proxy.rb', line 146

def disconnected?
  @state == :disconnected
end

#dont_acknowledge(original, prefix = nil, reason = nil) ⇒ Object

Raises:

  • (InvalidArgument) 


504
505
506
507
508
509
510
511
512
513
514
 
# File 'lib/rsmp/proxy.rb', line 504

def dont_acknowledge original, prefix=nil, reason=nil
  raise InvalidArgument unless original
  str = [prefix,reason].join(' ')
  log str, message: original, level: :warning if reason
  message = MessageNotAck.new({
    "oMId" => original.m_id,
    "rea" => reason || "Unknown reason"
  })
  message.original = original.clone
  send_message message, "for #{original.type} #{original.m_id_short}"
end

#dont_expect_acknowledgement(message) ⇒ Object 



468
469
470
 
# File 'lib/rsmp/proxy.rb', line 468

def dont_expect_acknowledgement message
  @awaiting_acknowledgement.delete message.attribute("oMId")
end

#expect_acknowledgement(message) ⇒ Object 



462
463
464
465
466
 
# File 'lib/rsmp/proxy.rb', line 462

def expect_acknowledgement message
  unless message.is_a?(MessageAck) || message.is_a?(MessageNotAck)
    @awaiting_acknowledgement[message.m_id] = message
  end
end

#expect_version_message(message) ⇒ Object 



629
630
631
632
633
 
# File 'lib/rsmp/proxy.rb', line 629

def expect_version_message message
  unless message.is_a?(Version) || message.is_a?(MessageAck) || message.is_a?(MessageNotAck)
    raise HandshakeError.new "Version must be received first"
  end
end

#extraneous_version(message) ⇒ Object 



472
473
474
 
# File 'lib/rsmp/proxy.rb', line 472

def extraneous_version message
  dont_acknowledge message, "Received", "extraneous Version message"
end

#find_original_for_message(message) ⇒ Object 



547
548
549
 
# File 'lib/rsmp/proxy.rb', line 547

def find_original_for_message message
   @awaiting_acknowledgement[ message.attribute("oMId") ]
end

#get_schemas ⇒ Object 



336
337
338
339
340
341
 
# File 'lib/rsmp/proxy.rb', line 336

def get_schemas
  schemas = { core: RSMP::Schema.latest_core_version } # use latest core
  schemas[:core] = core_version if core_version
  schemas[sxl] = RSMP::Schema.sanitize_version(sxl_version.to_s) if sxl && sxl_version
  schemas
end

#handshake_complete ⇒ Object 



635
636
637
 
# File 'lib/rsmp/proxy.rb', line 635

def handshake_complete
  set_state :ready
end

#inspect ⇒ Object 



128
129
130
131
132
 
# File 'lib/rsmp/proxy.rb', line 128

def inspect
  "#<#{self.class.name}:#{self.object_id}, #{inspector(
    :@acknowledgements,:@settings,:@site_settings
    )}>"
end

#log(str, options = {}) ⇒ Object 



332
333
334
 
# File 'lib/rsmp/proxy.rb', line 332

def log str, options={}
  super str, options.merge(ip: @ip, port: @port, site_id: @site_id)
end

#log_acknowledgement_for_original(message, original) ⇒ Object 



608
609
610
611
612
613
614
615
616
617
 
# File 'lib/rsmp/proxy.rb', line 608

def log_acknowledgement_for_original message, original
  str = "Received #{message.type} for #{original.type} #{message.attribute("oMId")[0..3]}"
  if message.type == 'MessageNotAck'
    reason = message.attributes["rea"]
    str = "#{str}: #{reason}" if reason
    log str, message: message, level: :warning
  else
    log str, message: message, level: :log
  end
end

#log_acknowledgement_for_unknown(message) ⇒ Object 



619
620
621
 
# File 'lib/rsmp/proxy.rb', line 619

def log_acknowledgement_for_unknown message
  log "Received #{message.type} for unknown message #{message.attribute("oMId")[0..3]}", message: message, level: :warning
end

#log_send(message, reason = nil) ⇒ Object 



366
367
368
369
370
371
372
373
374
375
376
377
378
 
# File 'lib/rsmp/proxy.rb', line 366

def log_send message, reason=nil
  if reason
    str = "Sent #{message.type} #{reason}"
  else
    str = "Sent #{message.type}"
  end

  if message.type == "MessageNotAck"
    log str, message: message, level: :warning
  else
    log str, message: message, level: :log
  end
end

#notify_error(e, options = {}) ⇒ Object 



216
217
218
 
# File 'lib/rsmp/proxy.rb', line 216

def notify_error e, options={}
  @node.notify_error e, options
end

#now ⇒ Object 



29
30
31
 
# File 'lib/rsmp/proxy.rb', line 29

def now
  node.now
end

#process_ack(message) ⇒ Object 



572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
 
# File 'lib/rsmp/proxy.rb', line 572

def process_ack message
  original = find_original_for_message message
  if original
    dont_expect_acknowledgement message
    message.original = original
    log_acknowledgement_for_original message, original

    case original.type
    when "Version"
      version_acknowledged
    when "StatusSubscribe"
      status_subscribe_acknowledged original
    end

    check_outgoing_acknowledged original

    @acknowledgements[ original.m_id ] = message
    @acknowledgement_condition.signal message
  else
    log_acknowledgement_for_unknown message
  end
end

#process_deferred ⇒ Object 



388
389
390
 
# File 'lib/rsmp/proxy.rb', line 388

def process_deferred
  @node.process_deferred
end

#process_message(message) ⇒ Object 



441
442
443
444
445
446
447
448
449
450
451
452
453
454
 
# File 'lib/rsmp/proxy.rb', line 441

def process_message message
  case message
    when MessageAck
      process_ack message
    when MessageNotAck
      process_not_ack message
    when Version
      process_version message
    when Watchdog
      process_watchdog message
    else
      dont_acknowledge message, "Received", "unknown message (#{message.type})"
  end
end

#process_not_ack(message) ⇒ Object 



595
596
597
598
599
600
601
602
603
604
605
606
 
# File 'lib/rsmp/proxy.rb', line 595

def process_not_ack message
  original = find_original_for_message message
  if original
    dont_expect_acknowledgement message
    message.original = original
    log_acknowledgement_for_original message, original
    @acknowledgements[ original.m_id ] = message
    @acknowledgement_condition.signal message
  else
    log_acknowledgement_for_unknown message
  end
end

#process_packet(json) ⇒ Object 



396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
 
# File 'lib/rsmp/proxy.rb', line 396

def process_packet json
  attributes = Message.parse_attributes json
  message = Message.build attributes, json
  message.validate(get_schemas) if should_validate_ingoing_message?(message)
  verify_sequence message
  deferred_notify do
    notify message
    process_message message
  end
  process_deferred
  message
rescue InvalidPacket => e
  str = "Received invalid package, must be valid JSON but got #{json.size} bytes: #{e.message}"
  notify_error e.exception(str)
  log str, level: :warning
  nil
rescue MalformedMessage => e
  str = "Received malformed message, #{e.message}"
  notify_error e.exception(str)
  log str, message: Malformed.new(attributes), level: :warning
  # cannot send NotAcknowledged for a malformed message since we can't read it, just ignore it
  nil
rescue SchemaError, RSMP::Schema::Error => e
  reason = "schema errors: #{e.message}"
  str = "Received invalid #{message.type}"
  notify_error e.exception(str), message: message
  dont_acknowledge message, str, reason
  message
rescue InvalidMessage => e
  reason = "#{e.message}"
  str = "Received invalid #{message.type},"
  notify_error e.exception("#{str} #{message.json}"), message: message
  dont_acknowledge message, str, reason
  message
rescue FatalError => e
  reason = e.message
  str = "Rejected #{message.type},"
  notify_error e.exception(str), message: message
  dont_acknowledge message, str, reason
  close
  message
ensure
  @node.clear_deferred
end

#process_version(message) ⇒ Object 



493
494
 
# File 'lib/rsmp/proxy.rb', line 493

def process_version message
end

#process_watchdog(message) ⇒ Object 



623
624
625
626
627
 
# File 'lib/rsmp/proxy.rb', line 623

def process_watchdog message
  log "Received #{message.type}", message: message, level: :log
  @latest_watchdog_received = Clock.now
  acknowledge message
end

#read_line ⇒ Object 



194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
 
# File 'lib/rsmp/proxy.rb', line 194

def read_line
  json = @protocol.read_line
  beginning = Time.now
  message = process_packet json
  duration = Time.now - beginning
  ms = (duration*1000).round(4)
  if duration > 0
    per_second = (1.0 / duration).round
  else
    per_second = Float::INFINITY
  end
  if message
    type = message.type
    m_id = Logger.shorten_message_id(message.m_id)
  else
    type = 'Unknown'
    m_id = nil
  end
  str = [type,m_id,"processed in #{ms}ms, #{per_second}req/s"].compact.join(' ')
  log str, level: :statistics
end

#ready? ⇒ Boolean

Returns:

  • (Boolean) 


138
139
140
 
# File 'lib/rsmp/proxy.rb', line 138

def ready?
  @state == :ready
end

#revive(options) ⇒ Object

revive after a reconnect



108
109
110
 
# File 'lib/rsmp/proxy.rb', line 108

def revive options
  setup options
end

#run_reader ⇒ Object 



171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
 
# File 'lib/rsmp/proxy.rb', line 171

def run_reader
  @stream ||= Async::IO::Stream.new(@socket)
  @protocol ||= Async::IO::Protocol::Line.new(@stream,WRAPPING_DELIMITER) # rsmp messages are json terminated with a form-feed
  loop do
    read_line
  end
rescue Restart
  log "Closing connection", level: :warning
  raise
rescue Async::Wrapper::Cancelled
  # ignore exceptions raised when a wait is aborted because a task is stopped
rescue EOFError, Async::Stop
  log "Connection closed", level: :warning
rescue IOError => e
  log "IOError: #{e}", level: :warning
rescue Errno::ECONNRESET
  log "Connection reset by peer", level: :warning
rescue Errno::EPIPE
  log "Broken pipe", level: :warning
rescue StandardError => e
  notify_error e, level: :internal
end

#run_timer(task, interval) ⇒ Object 



251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
 
# File 'lib/rsmp/proxy.rb', line 251

def run_timer task, interval
  next_time = Time.now.to_f
  loop do
    begin
      now = Clock.now
      timer(now)
    rescue RSMP::Schema::Error => e
      log "Timer: Schema error: #{e}", level: :warning
    rescue EOFError => e
      log "Timer: Connection closed: #{e}", level: :warning
    rescue IOError => e
      log "Timer: IOError", level: :warning
    rescue Errno::ECONNRESET
      log "Timer: Connection reset by peer", level: :warning
    rescue Errno::EPIPE => e
      log "Timer: Broken pipe", level: :warning
    rescue StandardError => e
      notify_error e, level: :internal
    end
  ensure
    next_time += interval
    duration = next_time - Time.now.to_f
    task.sleep duration
  end
end

#send_and_optionally_collect(message, options, &block) ⇒ Object 



646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
 
# File 'lib/rsmp/proxy.rb', line 646

def send_and_optionally_collect message, options, &block
  collect_options = options[:collect] || options[:collect!]
  if collect_options
    task = @task.async do |task|
      task.annotate 'send_and_optionally_collect'
      collector = yield collect_options     # call block to create collector
      collector.collect
      collector.ok! if options[:collect!]   # raise any errors if the bang version was specified
      collector
    end

    send_message message, validate: options[:validate]
    { sent: message, collector: task.wait }
  else
    send_message message, validate: options[:validate]
    return { sent: message }
  end
end

#send_message(message, reason = nil, validate: true) ⇒ Object 



343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
 
# File 'lib/rsmp/proxy.rb', line 343

def send_message message, reason=nil, validate: true
  raise NotReady unless connected?
  raise IOError unless @protocol
  message.direction = :out
  message.generate_json
  message.validate get_schemas unless validate==false
  @protocol.write_lines message.json
  expect_acknowledgement message
  notify message
  log_send message, reason
rescue EOFError, IOError
  buffer_message message
rescue SchemaError, RSMP::Schema::Error => e
  str = "Could not send #{message.type} because schema validation failed: #{e.message}"
  log str, message: message, level: :error
  notify_error e.exception("#{str} #{message.json}")
end

#send_version(site_id, core_versions) ⇒ Object 



527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
 
# File 'lib/rsmp/proxy.rb', line 527

def send_version site_id, core_versions
  if core_versions=='latest'
    versions = [RSMP::Schema.latest_core_version]
  elsif core_versions=='all'
    versions = RSMP::Schema.core_versions
  else
    versions = [core_versions].flatten
  end
  versions_array = versions.map {|v| {"vers" => v} }

  site_id_array = [site_id].flatten.map {|id| {"sId" => id} }

  version_response = Version.new({
    "RSMP"=>versions_array,
    "siteId"=>site_id_array,
    "SXL"=>sxl_version.to_s
  })
  send_message version_response
end

#send_watchdog(now = Clock.now) ⇒ Object 



298
299
300
301
302
 
# File 'lib/rsmp/proxy.rb', line 298

def send_watchdog now=Clock.now
  message = Watchdog.new( {"wTs" => clock.to_s})
  send_message message
  @latest_watchdog_send_at = now
end

#set_nts_message_attributes(message) ⇒ Object 



665
666
667
668
 
# File 'lib/rsmp/proxy.rb', line 665

def set_nts_message_attributes message
  message.attributes['ntsOId'] = (main && main.ntsOId) ? main.ntsOId : ''
  message.attributes['xNId'] = (main && main.xNId) ? main.xNId : ''
end

#set_state(state) ⇒ Object

change our state



95
96
97
98
99
 
# File 'lib/rsmp/proxy.rb', line 95

def set_state state
  return if state == @state
  @state = state
  state_changed
end

#setup(options) ⇒ Object 



112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
 
# File 'lib/rsmp/proxy.rb', line 112

def setup options
  @settings = options[:settings]
  @socket = options[:socket]
  @stream = options[:stream]
  @protocol = options[:protocol]
  @ip = options[:ip]
  @port = options[:port]
  @connection_info = options[:info]
  @sxl = nil
  @site_settings = nil  # can't pick until we know the site id
  if options[:collect]
    @collector = RSMP::Collector.new self, options[:collect]
    @collector.start
  end
end

#should_validate_ingoing_message?(message) ⇒ Boolean

Returns:

  • (Boolean) 


380
381
382
383
384
385
386
 
# File 'lib/rsmp/proxy.rb', line 380

def should_validate_ingoing_message? message
  return true unless @site_settings
  skip = @site_settings.dig('skip_validation')
  return true unless skip
  klass = message.class.name.split('::').last
  !skip.include?(klass)
end

#start_reader ⇒ Object

run an async task that reads from @socket



164
165
166
167
168
169
 
# File 'lib/rsmp/proxy.rb', line 164

def start_reader
  @reader = @task.async do |task|
    task.annotate "reader"
    run_reader
  end
end

#start_timer ⇒ Object 



239
240
241
242
243
244
245
246
247
248
249
 
# File 'lib/rsmp/proxy.rb', line 239

def start_timer
  return if @timer
  name = "timer"
  interval = @site_settings['intervals']['timer'] || 1
  log "Starting #{name} with interval #{interval} seconds", level: :debug
  @latest_watchdog_received = Clock.now
  @timer = @task.async do |task|
    task.annotate "timer"
    run_timer task, interval
  end
end

#start_watchdog ⇒ Object 



220
221
222
223
 
# File 'lib/rsmp/proxy.rb', line 220

def start_watchdog
  log "Starting watchdog with interval #{@site_settings['intervals']['watchdog']} seconds", level: :debug
  @watchdog_started = true
end

#state_changed ⇒ Object

the state changed override to to things like notifications



103
104
105
 
# File 'lib/rsmp/proxy.rb', line 103

def state_changed
  @state_condition.signal @state
end

#status_subscribe_acknowledged(original) ⇒ Object 



677
678
679
680
681
682
683
684
 
# File 'lib/rsmp/proxy.rb', line 677

def status_subscribe_acknowledged original
  component = find_component original.attribute('cId')
  return unless component
  short = Message.shorten_m_id original.m_id
  subscribe_list = original.attributes['sS']
  log "StatusSubscribe #{short} acknowledged, allowing repeated status values for #{subscribe_list}", level: :info
  component.allow_repeat_updates subscribe_list
end

#stop_reader ⇒ Object 



71
72
73
74
75
 
# File 'lib/rsmp/proxy.rb', line 71

def stop_reader
  @reader.stop if @reader
ensure
  @reader = nil
end

#stop_subtasks ⇒ Object 



58
59
60
61
62
63
 
# File 'lib/rsmp/proxy.rb', line 58

def stop_subtasks
  stop_timer
  stop_reader
  clear
  super
end

#stop_task ⇒ Object 



89
90
91
92
 
# File 'lib/rsmp/proxy.rb', line 89

def stop_task
  close
  super
end

#stop_timer ⇒ Object 



65
66
67
68
69
 
# File 'lib/rsmp/proxy.rb', line 65

def stop_timer
  @timer.stop if @timer
ensure
  @timer = nil
end

#stop_watchdog ⇒ Object 



225
226
227
228
 
# File 'lib/rsmp/proxy.rb', line 225

def stop_watchdog
  log "Stopping watchdog", level: :debug
  @watchdog_started = false
end

#timer(now) ⇒ Object 



277
278
279
280
281
 
# File 'lib/rsmp/proxy.rb', line 277

def timer now
  watchdog_send_timer now
  check_ack_timeout now
  check_watchdog_timeout now
end

#verify_sequence(message) ⇒ Object 



392
393
394
 
# File 'lib/rsmp/proxy.rb', line 392

def verify_sequence message
  expect_version_message(message) unless @version_determined
end

#version_acknowledged ⇒ Object 



639
640
 
# File 'lib/rsmp/proxy.rb', line 639

def version_acknowledged
end

#wait_for_reader ⇒ Object

wait for the reader task to complete, which is not expected to happen before the connection is closed



39
40
41
 
# File 'lib/rsmp/proxy.rb', line 39

def wait_for_reader
  @reader.wait if @reader
end

#wait_for_state(state, timeout:) ⇒ Object 



516
517
518
519
520
521
522
523
524
525
 
# File 'lib/rsmp/proxy.rb', line 516

def wait_for_state state, timeout:
  states = [state].flatten
  return if states.include?(@state)
  wait_for_condition(@state_condition,timeout: timeout) do
    states.include?(@state)
  end
  @state
rescue RSMP::TimeoutError
  raise RSMP::TimeoutError.new "Did not reach state #{state} within #{timeout}s"
end

#watchdog_send_timer(now) ⇒ Object 



283
284
285
286
287
288
289
290
291
292
293
294
295
296
 
# File 'lib/rsmp/proxy.rb', line 283

def watchdog_send_timer now
  return unless @watchdog_started
  return if @site_settings['intervals']['watchdog'] == :never
  if @latest_watchdog_send_at == nil
    send_watchdog now
  else
    # we add half the timer interval to pick the timer
    # event closes to the wanted wathcdog interval
    diff = now - @latest_watchdog_send_at
    if (diff + 0.5*@site_settings['intervals']['timer']) >= (@site_settings['intervals']['watchdog'])
      send_watchdog now
    end
  end
end

#will_not_handle(message) ⇒ Object 



456
457
458
459
460
 
# File 'lib/rsmp/proxy.rb', line 456

def will_not_handle message
  reason = "since we're a #{self.class.name.downcase}" unless reason
  log "Ignoring #{message.type}, #{reason}", message: message, level: :warning
  dont_acknowledge message, nil, reason
end

#with_watchdog_disabled ⇒ Object 



230
231
232
233
234
235
236
 
# File 'lib/rsmp/proxy.rb', line 230

def with_watchdog_disabled
  was = @watchdog_started
  stop_watchdog if was
  yield
ensure
  start_watchdog if was
end