Class: HTTPX::TCP

Inherits:
Object
  • Object
show all
Includes:
Loggable
Defined in:
lib/httpx/io/tcp.rb

Direct Known Subclasses

SSL, UNIX

Constant Summary

Constants included from Loggable

Loggable::COLORS

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Loggable

#log, #log_exception

Constructor Details

#initialize(origin, addresses, options) ⇒ TCP

Returns a new instance of TCP.



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# File 'lib/httpx/io/tcp.rb', line 18

def initialize(origin, addresses, options)
  @state = :idle
  @hostname = origin.host
  @addresses = addresses
  @options = Options.new(options)
  @fallback_protocol = @options.fallback_protocol
  @port = origin.port
  if @options.io
    @io = case @options.io
          when Hash
            @options.io[origin.authority]
          else
            @options.io
    end
    _, _, _, @ip = @io.addr
    @addresses ||= [@ip]
    @ip_index = @addresses.size - 1
    unless @io.nil?
      @keep_open = true
      @state = :connected
    end
  else
    @ip_index = @addresses.size - 1
    @ip = @addresses[@ip_index]
  end
  @io ||= build_socket
end

Instance Attribute Details

#addresses ⇒ Object (readonly)

Returns the value of attribute addresses.



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# File 'lib/httpx/io/tcp.rb', line 12

def addresses
  @addresses
end

#ip ⇒ Object (readonly) Also known as: host

Returns the value of attribute ip.



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# File 'lib/httpx/io/tcp.rb', line 10

def ip
  @ip
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/httpx/io/tcp.rb', line 10

def port
  @port
end

#state ⇒ Object (readonly)

Returns the value of attribute state.



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# File 'lib/httpx/io/tcp.rb', line 14

def state
  @state
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/httpx/io/tcp.rb', line 129

def close
  return if @keep_open || closed?

  begin
    @io.close
  ensure
    transition(:closed)
  end
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpx/io/tcp.rb', line 143

def closed?
  @state == :idle || @state == :closed
end

#connect ⇒ Object 



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# File 'lib/httpx/io/tcp.rb', line 58

def connect
  return unless closed?

  begin
    if @io.closed?
      transition(:idle)
      @io = build_socket
    end
    @io.connect_nonblock(Socket.sockaddr_in(@port, @ip.to_s))
  rescue Errno::EISCONN
  end
  transition(:connected)
rescue Errno::EHOSTUNREACH => e
  raise e if @ip_index <= 0

  @ip_index -= 1
  retry
rescue Errno::ETIMEDOUT => e
  raise ConnectTimeoutError, e.message if @ip_index <= 0

  @ip_index -= 1
  retry
rescue Errno::EINPROGRESS,
       Errno::EALREADY,
       ::IO::WaitReadable
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/httpx/io/tcp.rb', line 139

def connected?
  @state == :connected
end

#inspect ⇒ Object

:nocov:



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# File 'lib/httpx/io/tcp.rb', line 148

def inspect
  id = @io.closed? ? "closed" : @io.fileno
  "#<TCP(fd: #{id}): #{@ip}:#{@port} (state: #{@state})>"
end

#interests ⇒ Object 



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# File 'lib/httpx/io/tcp.rb', line 46

def interests
  :w
end

#protocol ⇒ Object 



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# File 'lib/httpx/io/tcp.rb', line 54

def protocol
  @fallback_protocol
end

#read(size, buffer) ⇒ Object

:nocov:



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# File 'lib/httpx/io/tcp.rb', line 87

def read(size, buffer)
  @io.read_nonblock(size, buffer)
  buffer.bytesize
rescue ::IO::WaitReadable
  buffer.clear
  0
rescue EOFError
  nil
end

#to_io ⇒ Object 



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# File 'lib/httpx/io/tcp.rb', line 50

def to_io
  @io.to_io
end

#write(buffer) ⇒ Object 



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# File 'lib/httpx/io/tcp.rb', line 97

def write(buffer)
  siz = @io.write_nonblock(buffer)
  buffer.shift!(siz)
  siz
rescue ::IO::WaitWritable
  0
rescue EOFError
  nil
end