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I'm trying to subscribe to a redis server and have it echo what it hears to all the active websockets. I've been looking at example https://github.com/redis/redis-rb/blob/master/examples/pubsub.rb and https://github.com/celluloid/reel/blob/master/examples/websockets.rb. I'm using rubinius build just yesterday
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| require 'rubygems' | |
| require 'bundler/setup' | |
| require 'reel' | |
| require 'celluloid/autostart' | |
| require 'celluloid/redis' | |
| require 'redis' | |
| class TimeServer | |
| include Celluloid | |
| include Celluloid::Notifications | |
| def initialize | |
| async.run | |
| @redis = Redis.new(:driver => :celluloid) | |
| end | |
| def run | |
| # now = Time.now.to_f | |
| # sleep now.ceil - now + 0.001 | |
| # every(1) { publish 'time_change', Time.now } | |
| begin | |
| @redis.subscribe(:one) do |on| | |
| on.subscribe do |channel, subscriptions| | |
| puts "Subscribed to ##{channel} (#{subscriptions} subscriptions)" | |
| end | |
| on.message do |channel, message| | |
| publish 'time_change', message | |
| #puts "##{channel}: #{message}" | |
| #redis.unsubscribe if message == "exit" | |
| end | |
| on.unsubscribe do |channel, subscriptions| | |
| puts "Unsubscribed from ##{channel} (#{subscriptions} subscriptions)" | |
| end | |
| end | |
| rescue Redis::BaseConnectionError => error | |
| puts "#{error}, retrying in 1s" | |
| sleep 1 | |
| retry | |
| end | |
| end | |
| end | |
| class TimeClient | |
| include Celluloid | |
| include Celluloid::Notifications | |
| include Celluloid::Logger | |
| def initialize(websocket) | |
| info "Streaming time changes to client" | |
| @socket = websocket | |
| subscribe('time_change', :notify_time_change) | |
| end | |
| def notify_time_change(topic, new_time) | |
| @socket << new_time.inspect | |
| rescue Reel::SocketError | |
| info "Time client disconnected" | |
| terminate | |
| end | |
| end | |
| class WebServer < Reel::Server | |
| include Celluloid::Logger | |
| def initialize(host = "0.0.0.0", port = 1234) | |
| info "Time server example starting on #{host}:#{port}" | |
| super(host, port, &method(:on_connection)) | |
| end | |
| def on_connection(connection) | |
| while request = connection.request | |
| case request | |
| when Reel::Request | |
| route_request connection, request | |
| when Reel::WebSocket | |
| info "Received a WebSocket connection" | |
| route_websocket request | |
| end | |
| end | |
| end | |
| def route_request(connection, request) | |
| if request.url == "/" | |
| return render_index(connection) | |
| end | |
| info "404 Not Found: #{request.path}" | |
| connection.respond :not_found, "Not found" | |
| end | |
| def route_websocket(socket) | |
| if socket.url == "/timeinfo" | |
| TimeClient.new(socket) | |
| else | |
| info "Received invalid WebSocket request for: #{socket.url}" | |
| socket.close | |
| end | |
| end | |
| def render_index(connection) | |
| info "200 OK: /" | |
| connection.respond :ok, <<-HTML | |
| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Reel WebSockets time server example</title> | |
| <style> | |
| body { | |
| font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; | |
| font-weight: 300; | |
| text-align: center; | |
| } | |
| #content { | |
| width: 800px; | |
| margin: 0 auto; | |
| background: #EEEEEE; | |
| padding: 1em; | |
| } | |
| </style> | |
| </head> | |
| <script> | |
| var SocketKlass = "MozWebSocket" in window ? MozWebSocket : WebSocket; | |
| var ws = new SocketKlass('ws://' + window.location.host + '/timeinfo'); | |
| ws.onmessage = function(msg){ | |
| document.getElementById('current-time').innerHTML = msg.data; | |
| } | |
| </script> | |
| <body> | |
| <div id="content"> | |
| <h1>Time Server Example</h1> | |
| <div>The time is now: <span id="current-time">...</span></div> | |
| </div> | |
| </body> | |
| </html> | |
| HTML | |
| end | |
| end | |
| TimeServer.supervise_as :time_server | |
| WebServer.supervise_as :reel | |
| sleep |
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| joshua@wopr:~/freetable/chatserver/celluloid/test1$ ./chat-server.rb | |
| E, [2013-08-19T20:02:02.271027 #18585] ERROR -- : TimeServer crashed! | |
| NoMethodError: undefined method `new' on Celluloid::Redis (Module) | |
| kernel/delta/kernel.rb:81:in `new (method_missing)' | |
| ./chat-server.rb:16:in `initialize' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:in `dispatch' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in `dispatch' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:in `handle_message' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in `initialize' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:in `create' | |
| kernel/bootstrap/proc.rb:22:in `call' | |
| E, [2013-08-19T20:02:02.271341 #18585] ERROR -- : Celluloid::SupervisionGroup crashed! | |
| NoMethodError: undefined method `new' on Celluloid::Redis (Module) | |
| kernel/delta/kernel.rb:81:in `new (method_missing)' | |
| ./chat-server.rb:16:in `initialize' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:in `dispatch' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in `dispatch' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:in `handle_message' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in `initialize' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:in `create' | |
| kernel/bootstrap/proc.rb:22:in `call' | |
| (celluloid):0:in `remote procedure call' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:95:in `value' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/sync_proxy.rb:28:in `method_missing' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/legacy.rb:0:in `method_missing' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/actor_proxy.rb:25:in `_send_' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid.rb:140:in `new_link' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:136:in `start' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:124:in `initialize' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:82:in `add' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:73:in `supervise_as' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:in `dispatch' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in `dispatch' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:in `handle_message' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in `initialize' | |
| /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:in `create' | |
| An exception occurred running ./chat-server.rb | |
| task was terminated (Celluloid::Task::TerminatedError) | |
| Backtrace: | |
| Celluloid::Task(Celluloid::TaskFiber)#suspend at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:61 | |
| Celluloid::Task.suspend at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:19 | |
| Celluloid.suspend at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid.rb:60 | |
| Celluloid::SyncCall#value at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:95 | |
| Celluloid::SyncProxy(Celluloid::ActorProxy)#method_missing at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/sync_proxy.rb:28 | |
| Celluloid::ActorProxy#supervise_as (method_missing) at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/legacy.rb:14 | |
| { } in Celluloid::Supervisor.supervise_as at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervisor.rb:17 | |
| Celluloid::SupervisionGroup#initialize at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:63 | |
| Celluloid::Call(Celluloid::SyncCall)#dispatch at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25 | |
| Celluloid::SyncCall#dispatch at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67 | |
| { } in Celluloid::Actor#handle_message at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326 | |
| { } in Celluloid::Task(Celluloid::TaskFiber)#initialize at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42 | |
| { } in Celluloid::TaskFiber#create at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11 | |
| Proc#call at kernel/bootstrap/proc.rb:22 | |
| D, [2013-08-19T20:02:02.278390 #18585] DEBUG -- : Terminating 4 actors... | |
| D, [2013-08-19T20:02:02.279416 #18585] DEBUG -- : Shutdown completed cleanly |
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E, [2013-08-19T19:35:10.120147 #18497] ERROR -- : TimeServer crashed!
NoMethodError: undefined method
new' on Celluloid::Redis (Module) kernel/delta/kernel.rb:81:innew (method_missing)'./chat-server.rb:16:in
initialize' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:indispatch'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in
dispatch' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:inhandle_message'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in
initialize' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:increate'kernel/bootstrap/proc.rb:22:in
call' (celluloid):0:inremote procedure call'E, [2013-08-19T19:35:10.120457 #18497] ERROR -- : Celluloid::SupervisionGroup crashed!
NoMethodError: undefined method
new' on Celluloid::Redis (Module) kernel/delta/kernel.rb:81:innew (method_missing)'./chat-server.rb:16:in
initialize' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:indispatch'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in
dispatch' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:inhandle_message'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in
initialize' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:increate'kernel/bootstrap/proc.rb:22:in
call' (celluloid):0:inremote procedure call'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:95:in
value' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/sync_proxy.rb:28:inmethod_missing'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/legacy.rb:0:in
method_missing' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/actor_proxy.rb:25:insend'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid.rb:140:in
new_link' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:136:instart'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:124:in
initialize' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:82:inadd'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:73:in
supervise_as' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25:indispatch'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67:in
dispatch' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326:inhandle_message'/usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42:in
initialize' /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11:increate'An exception occurred running ./chat-server.rb
task was terminated (Celluloid::Task::TerminatedError)
Backtrace:
Celluloid::Task(Celluloid::TaskFiber)#suspend at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:61
Celluloid::Task.suspend at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:19
Celluloid.suspend at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid.rb:60
Celluloid::SyncCall#value at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:95
Celluloid::SyncProxy(Celluloid::ActorProxy)#method_missing at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/proxies/sync_proxy.rb:28
Celluloid::ActorProxy#supervise_as (method_missing) at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/legacy.rb:14
{ } in Celluloid::Supervisor.supervise_as at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervisor.rb:17
Celluloid::SupervisionGroup#initialize at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/supervision_group.rb:63
Celluloid::Call(Celluloid::SyncCall)#dispatch at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:25
Celluloid::SyncCall#dispatch at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/calls.rb:67
{ } in Celluloid::Actor#handle_message at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/actor.rb:326
{ } in Celluloid::Task(Celluloid::TaskFiber)#initialize at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks.rb:42
{ } in Celluloid::TaskFiber#create at /usr/rubinius/2.0/gems/gems/celluloid-0.14.1/lib/celluloid/tasks/task_fiber.rb:11
Proc#call at kernel/bootstrap/proc.rb:22
D, [2013-08-19T19:35:10.131110 #18497] DEBUG -- : Terminating 4 actors...
D, [2013-08-19T19:35:10.131781 #18497] DEBUG -- : Shutdown completed cleanly