diff options
Diffstat (limited to 'actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee')
-rw-r--r-- | actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee | 81 |
1 files changed, 45 insertions, 36 deletions
diff --git a/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee b/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee index 904a426644..0cc675fa94 100644 --- a/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee +++ b/actioncable/app/assets/javascripts/action_cable/connection_monitor.coffee @@ -7,60 +7,69 @@ class ActionCable.ConnectionMonitor @staleThreshold: 6 # Server::Connections::BEAT_INTERVAL * 2 (missed two pings) - constructor: (@consumer) -> - @start() + constructor: (@connection) -> + @reconnectAttempts = 0 - connected: -> - @reset() - @pingedAt = now() - delete @disconnectedAt - ActionCable.log("ConnectionMonitor connected") + start: -> + unless @isRunning() + @startedAt = now() + delete @stoppedAt + @startPolling() + document.addEventListener("visibilitychange", @visibilityDidChange) + ActionCable.log("ConnectionMonitor started. pollInterval = #{@getPollInterval()} ms") - disconnected: -> - @disconnectedAt = now() - ActionCable.log("ConnectionMonitor disconnected") + stop: -> + if @isRunning() + @stoppedAt = now() + @stopPolling() + document.removeEventListener("visibilitychange", @visibilityDidChange) + ActionCable.log("ConnectionMonitor stopped") + + isRunning: -> + @startedAt? and not @stoppedAt? - ping: -> + recordPing: -> @pingedAt = now() - reset: -> + recordConnect: -> @reconnectAttempts = 0 - @consumer.connection.isOpen() + @recordPing() + delete @disconnectedAt + ActionCable.log("ConnectionMonitor recorded connect") - start: -> - @reset() - delete @stoppedAt - @startedAt = now() + recordDisconnect: -> + @disconnectedAt = now() + ActionCable.log("ConnectionMonitor recorded disconnect") + + # Private + + startPolling: -> + @stopPolling() @poll() - document.addEventListener("visibilitychange", @visibilityDidChange) - ActionCable.log("ConnectionMonitor started, pollInterval is #{@getInterval()}ms") - stop: -> - @stoppedAt = now() - document.removeEventListener("visibilitychange", @visibilityDidChange) - ActionCable.log("ConnectionMonitor stopped") + stopPolling: -> + clearTimeout(@pollTimeout) poll: -> - setTimeout => - unless @stoppedAt - @reconnectIfStale() - @poll() - , @getInterval() + @pollTimeout = setTimeout => + @reconnectIfStale() + @poll() + , @getPollInterval() - getInterval: -> + getPollInterval: -> {min, max} = @constructor.pollInterval interval = 5 * Math.log(@reconnectAttempts + 1) - clamp(interval, min, max) * 1000 + Math.round(clamp(interval, min, max) * 1000) reconnectIfStale: -> if @connectionIsStale() - ActionCable.log("ConnectionMonitor detected stale connection, reconnectAttempts = #{@reconnectAttempts}") + ActionCable.log("ConnectionMonitor detected stale connection. reconnectAttempts = #{@reconnectAttempts}, pollInterval = #{@getPollInterval()} ms, time disconnected = #{secondsSince(@disconnectedAt)} s, stale threshold = #{@constructor.staleThreshold} s") @reconnectAttempts++ if @disconnectedRecently() - ActionCable.log("ConnectionMonitor skipping reopen because recently disconnected at #{@disconnectedAt}") + ActionCable.log("ConnectionMonitor skipping reopening recent disconnect") else ActionCable.log("ConnectionMonitor reopening") - @consumer.connection.reopen() + @connection.reopen() connectionIsStale: -> secondsSince(@pingedAt ? @startedAt) > @constructor.staleThreshold @@ -71,9 +80,9 @@ class ActionCable.ConnectionMonitor visibilityDidChange: => if document.visibilityState is "visible" setTimeout => - if @connectionIsStale() or not @consumer.connection.isOpen() - ActionCable.log("ConnectionMonitor reopening stale connection after visibilitychange to #{document.visibilityState}") - @consumer.connection.reopen() + if @connectionIsStale() or not @connection.isOpen() + ActionCable.log("ConnectionMonitor reopening stale connection on visibilitychange. visbilityState = #{document.visibilityState}") + @connection.reopen() , 200 now = -> |