Class: Async::Bus::Protocol::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/async/bus/protocol/connection.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(peer, id) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/async/bus/protocol/connection.rb', line 46

def initialize(peer, id)
	@peer = peer
	
	@wrapper = Wrapper.new(self)
	@unpacker = @wrapper.unpacker(peer)
	@packer = @wrapper.packer(peer)
	
	@transactions = {}
	@id = id
	
	@objects = {}
end

Instance Attribute Details

#packer ⇒ Object (readonly)

Returns the value of attribute packer.



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# File 'lib/async/bus/protocol/connection.rb', line 60

def packer
  @packer
end

#transactions ⇒ Object (readonly)

Returns the value of attribute transactions.



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# File 'lib/async/bus/protocol/connection.rb', line 69

def transactions
  @transactions
end

#unpacker ⇒ Object (readonly)

Returns the value of attribute unpacker.



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# File 'lib/async/bus/protocol/connection.rb', line 59

def unpacker
  @unpacker
end

Class Method Details

.client(peer) ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 38

def self.client(peer)
	self.new(peer, 1)
end

.server(peer) ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 42

def self.server(peer)
	self.new(peer, 2)
end

Instance Method Details

#[](name) ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 83

def [](name)
	Proxy.new(self, name)
end

#bind(name, object) ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 79

def bind(name, object)
	@objects[name] = object
end

#close ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 129

def close
	@transactions.each do |id, transaction|
		transaction.close
	end
	
	@peer.close
end

#invoke(name, arguments, options, &block) ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 87

def invoke(name, arguments, options, &block)
	id = self.next_id
	
	transaction = Transaction.new(self, id)
	@transactions[id] = transaction
	
	transaction.invoke(name, arguments, options, &block)
end

#next_id ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 62

def next_id
	id = @id
	@id += 2
	
	return id
end

#proxy(object) ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 71

def proxy(object)
	name = "proxy:#{object_id}"
	
	bind(name, object)
	
	return name
end

#run ⇒ Object 



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# File 'lib/async/bus/protocol/connection.rb', line 96

def run
	# @unpacker.each do |message|
	@unpacker.each do |message|
		id = message.shift
		
		if transaction = @transactions[id]
			transaction.received.enqueue(message)
		elsif message.first == :invoke
			message.shift
			
			transaction = Transaction.new(self, id)
			@transactions[id] = transaction
			
			name = message.shift
			object = @objects[name]
			
			Async do
				transaction.accept(object, *message)
			ensure
				transaction.close
			end
		else
			raise "Out of order message: #{message}"
		end
	end
ensure
	@transactions.each do |id, transaction|
		transaction.close
	end
	
	@transactions.clear
end