Class: ActionCable::Server::Socket::Stream
- Inherits:
-
Object
- Object
- ActionCable::Server::Socket::Stream
- Defined in:
- lib/action_cable/server/socket/stream.rb
Overview
– This class is heavily based on faye-websocket-ruby
Copyright © 2010-2015 James Coglan
Instance Method Summary collapse
- #close ⇒ Object
- #each(&callback) ⇒ Object
- #flush_write_buffer ⇒ Object
- #hijack_rack_socket ⇒ Object
-
#initialize(event_loop, socket) ⇒ Stream
constructor
:nodoc:.
- #receive(data) ⇒ Object
- #shutdown ⇒ Object
- #write(data) ⇒ Object
Constructor Details
#initialize(event_loop, socket) ⇒ Stream
:nodoc:
11 12 13 14 15 16 17 18 19 20 21 |
# File 'lib/action_cable/server/socket/stream.rb', line 11 def initialize(event_loop, socket) @event_loop = event_loop @socket_object = socket @stream_send = socket.env["stream.send"] @rack_hijack_io = nil @write_lock = Mutex.new @write_head = nil @write_buffer = Queue.new end |
Instance Method Details
#close ⇒ Object
27 28 29 30 |
# File 'lib/action_cable/server/socket/stream.rb', line 27 def close shutdown @socket_object.client_gone end |
#each(&callback) ⇒ Object
23 24 25 |
# File 'lib/action_cable/server/socket/stream.rb', line 23 def each(&callback) @stream_send ||= callback end |
#flush_write_buffer ⇒ Object
71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 |
# File 'lib/action_cable/server/socket/stream.rb', line 71 def flush_write_buffer @write_lock.synchronize do loop do if @write_head.nil? return true if @write_buffer.empty? @write_head = @write_buffer.pop end written = @rack_hijack_io.write_nonblock(@write_head, exception: false) case written when :wait_writable return false when @write_head.bytesize @write_head = nil else @write_head = @write_head.byteslice(written, @write_head.bytesize) return false end end end end |
#hijack_rack_socket ⇒ Object
97 98 99 100 101 102 103 104 105 106 |
# File 'lib/action_cable/server/socket/stream.rb', line 97 def hijack_rack_socket return unless @socket_object.env["rack.hijack"] # This should return the underlying io according to the SPEC: @rack_hijack_io = @socket_object.env["rack.hijack"].call # Retain existing behavior if required: @rack_hijack_io ||= @socket_object.env["rack.hijack_io"] @event_loop.attach(@rack_hijack_io, self) end |
#receive(data) ⇒ Object
93 94 95 |
# File 'lib/action_cable/server/socket/stream.rb', line 93 def receive(data) @socket_object.parse(data) end |
#shutdown ⇒ Object
32 33 34 |
# File 'lib/action_cable/server/socket/stream.rb', line 32 def shutdown clean_rack_hijack end |
#write(data) ⇒ Object
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 65 66 67 68 69 |
# File 'lib/action_cable/server/socket/stream.rb', line 36 def write(data) if @stream_send return @stream_send.call(data) end if @write_lock.try_lock begin if @write_head.nil? && @write_buffer.empty? written = @rack_hijack_io.write_nonblock(data, exception: false) case written when :wait_writable # proceed below when data.bytesize return data.bytesize else @write_head = data.byteslice(written, data.bytesize) @event_loop.writes_pending @rack_hijack_io return data.bytesize end end ensure @write_lock.unlock end end @write_buffer << data @event_loop.writes_pending @rack_hijack_io data.bytesize rescue EOFError, Errno::ECONNRESET @socket_object.client_gone end |