Class: Pebble::Protocol
- Inherits:
-
Object
- Object
- Pebble::Protocol
- Defined in:
- lib/pebble/protocol.rb
Defined Under Namespace
Modules: Errors
Instance Attribute Summary collapse
-
#connected ⇒ Object
readonly
Returns the value of attribute connected.
-
#message_handlers ⇒ Object
readonly
Returns the value of attribute message_handlers.
Class Method Summary collapse
Instance Method Summary collapse
- #connect ⇒ Object
- #disconnect ⇒ Object
-
#initialize(port) ⇒ Protocol
constructor
A new instance of Protocol.
- #listen_for_messages ⇒ Object
- #on_receive(endpoint = :any, &handler) ⇒ Object
- #send_message(endpoint, message, async_response_handler = nil, &response_parser) ⇒ Object
- #stop_receiving(*params) ⇒ Object
Constructor Details
#initialize(port) ⇒ Protocol
Returns a new instance of Protocol.
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# File 'lib/pebble/protocol.rb', line 26 def initialize(port) @port = port @connected = false @send_message_mutex = Mutex.new @message_handlers = Hash.new { |hash, key| hash[key] = [] } end |
Instance Attribute Details
#connected ⇒ Object (readonly)
Returns the value of attribute connected.
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# File 'lib/pebble/protocol.rb', line 11 def connected @connected end |
#message_handlers ⇒ Object (readonly)
Returns the value of attribute message_handlers.
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# File 'lib/pebble/protocol.rb', line 12 def @message_handlers end |
Class Method Details
.open(port) ⇒ Object
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# File 'lib/pebble/protocol.rb', line 14 def self.open(port) protocol = new(port) begin protocol.connect yield protocol ensure protocol.disconnect end nil end |
Instance Method Details
#connect ⇒ Object
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# File 'lib/pebble/protocol.rb', line 34 def connect if @port.is_a?(String) @serial_port = SerialPort.new(@port, baudrate: 115200) @serial_port.read_timeout = 500 else @serial_port = @port end @connected = true Pebble.logger.debug "Connected to port #{@port}" @receive_messages_thread = Thread.new(&method(:receive_messages)) true end |
#disconnect ⇒ Object
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# File 'lib/pebble/protocol.rb', line 50 def disconnect raise Errors::NotConnected unless @connected @connected = false @serial_port.close() @serial_port = nil true end |
#listen_for_messages ⇒ Object
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# File 'lib/pebble/protocol.rb', line 61 def raise Errors::NotConnected unless @connected @receive_messages_thread.join end |
#on_receive(endpoint = :any, &handler) ⇒ Object
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# File 'lib/pebble/protocol.rb', line 67 def on_receive(endpoint = :any, &handler) @message_handlers[endpoint] << handler handler end |
#send_message(endpoint, message, async_response_handler = nil, &response_parser) ⇒ Object
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# File 'lib/pebble/protocol.rb', line 79 def (endpoint, , async_response_handler = nil, &response_parser) raise Errors::NotConnected unless @connected ||= "" Pebble.logger.debug "Sending #{Endpoints.for_code(endpoint) || endpoint}: #{.inspect}" data = [.size, endpoint].pack("S>S>") + @send_message_mutex.synchronize do @serial_port.write(data) if response_parser if async_response_handler identifier = on_receive(endpoint) do || stop_receiving(endpoint, identifier) parsed_response = response_parser.call() async_response_handler.call(parsed_response) end true else received = false parsed_response = nil identifier = on_receive(endpoint) do || stop_receiving(endpoint, identifier) parsed_response = response_parser.call() received = true end sleep 0.015 until received parsed_response end else true end end end |
#stop_receiving(*params) ⇒ Object
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# File 'lib/pebble/protocol.rb', line 72 def stop_receiving(*params) handler = params.pop endpoint = params.pop || :any @message_handlers[endpoint].delete(handler) end |