Class: Async::IO::HostEndpoint

Inherits:
Endpoint
  • Object
show all
Defined in:
lib/async/io/host_endpoint.rb

Instance Attribute Summary

Attributes inherited from Endpoint

#options

Instance Method Summary collapse

Methods inherited from Endpoint

#accept, #bound, each, #linger, #local_address, parse, #reuse_address, #reuse_port, socket, ssl, tcp, #timeout, try_convert, udp, unix, #with

Constructor Details

#initialize(specification, **options) ⇒ HostEndpoint

Returns a new instance of HostEndpoint.



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

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

Instance Method Details

#address ⇒ Object 



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

def address
  @specification
end

#bind {|Socket| ... } ⇒ Array<Socket>

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

Yields:

  • (Socket) —

    the bound socket

Returns:

  • (Array<Socket>) —

    an array of bound sockets



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# File 'lib/async/io/host_endpoint.rb', line 79

def bind(&block)
  Addrinfo.foreach(*@specification).collect do |address|
    Socket.bind(address, **@options, &block)
  end
end

#connect {|Socket| ... } ⇒ Socket

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

Yields:

  • (Socket) —

    the socket which is being connected, may be invoked more than once

Returns:

  • (Socket) —

    the connected socket

Raises:

  • if no connection could complete successfully



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# File 'lib/async/io/host_endpoint.rb', line 52

def connect
  last_error = nil
  
  task = Task.current
  
  Addrinfo.foreach(*@specification) do |address|
    begin
      wrapper = Socket.connect(address, **@options, task: task)
    rescue Errno::ECONNREFUSED, Errno::ENETUNREACH, Errno::EAGAIN
      last_error = $!
    else
      return wrapper unless block_given?
      
      begin
        return yield wrapper, task
      ensure
        wrapper.close
      end
    end
  end
  
  raise last_error
end

#each {|AddressEndpoint| ... } ⇒ Object

Yields:

  • (AddressEndpoint) —

    address endpoints by resolving the given host specification



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# File 'lib/async/io/host_endpoint.rb', line 86

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

#hostname ⇒ Object 



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# File 'lib/async/io/host_endpoint.rb', line 44

def hostname
  @specification.first
end

#to_s ⇒ Object 



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# File 'lib/async/io/host_endpoint.rb', line 34

def to_s
  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