Class: IO::Endpoint::HostEndpoint

Inherits:
Generic
  • Object
show all
Defined in:
lib/io/endpoint/host_endpoint.rb

Overview

Represents an endpoint for a hostname and service that resolves to multiple addresses.

Instance Attribute Summary collapse

Attributes inherited from Generic

#options

Instance Method Summary collapse

Methods inherited from Generic

#accept, #bound, #connected, #linger, #local_address, parse, #reuse_address?, #reuse_port?, #timeout, #with, #wrapper

Constructor Details

#initialize(specification, **options) ⇒ HostEndpoint

Initialize a new host endpoint.



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# File 'lib/io/endpoint/host_endpoint.rb', line 14

def initialize(specification, **options)
	super(**options)
	
	@specification = specification
end

Instance Attribute Details

#specification ⇒ Object (readonly)

Returns the value of attribute specification.



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# File 'lib/io/endpoint/host_endpoint.rb', line 36

def specification
  @specification
end

#The host specification array.(hostspecificationarray.) ⇒ Object (readonly) 



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# File 'lib/io/endpoint/host_endpoint.rb', line 36

attr :specification

Instance Method Details

#bind(wrapper = self.wrapper, &block) ⇒ Object

Invokes the given block for every address which can be bound to.



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# File 'lib/io/endpoint/host_endpoint.rb', line 82

def bind(wrapper = self.wrapper, &block)
	Addrinfo.foreach(*@specification).map do |address|
		wrapper.bind(address, **@options, &block)
	end
end

#connect(wrapper = self.wrapper, &block) ⇒ Object

Try to connect to the given host by connecting to each address in sequence until a connection is made.



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# File 'lib/io/endpoint/host_endpoint.rb', line 55

def connect(wrapper = self.wrapper, &block)
	last_error = nil
	
	Addrinfo.foreach(*@specification) do |address|
		begin
			socket = wrapper.connect(address, **@options)
		rescue => last_error
			Console.debug(self, "Failed to connect:", address, exception: last_error)
			# Try again unless if possible, otherwise raise...
		else
			return socket unless block_given?
			
			begin
				return yield(socket)
			ensure
				socket.close
			end
		end
	end
	
	raise last_error
end

#each ⇒ Object 



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# File 'lib/io/endpoint/host_endpoint.rb', line 90

def each
	return to_enum unless block_given?
	
	Addrinfo.foreach(*@specification) do |address|
		yield AddressEndpoint.new(address, **@options)
	end
end

#hostname ⇒ Object

Get the hostname from the specification.



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# File 'lib/io/endpoint/host_endpoint.rb', line 40

def hostname
	@specification[0]
end

#inspect ⇒ Object

Get a detailed string representation of the host endpoint.



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# File 'lib/io/endpoint/host_endpoint.rb', line 28

def inspect
	nodename, service, family, socktype, protocol, flags = @specification
	
	"\#<#{self.class} name=#{nodename.inspect} service=#{service.inspect} family=#{family.inspect} type=#{socktype.inspect} protocol=#{protocol.inspect} flags=#{flags.inspect}>"
end

#service ⇒ Object

Get the service from the specification.



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# File 'lib/io/endpoint/host_endpoint.rb', line 46

def service
	@specification[1]
end

#to_s ⇒ Object

Get a string representation of the host endpoint.



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# File 'lib/io/endpoint/host_endpoint.rb', line 22

def to_s
	"host:#{@specification[0]}:#{@specification[1]}"
end