X11::Protocol::Connection − Perl module abstract base class for X11 client to server connections


  # In connection object module
  package X11::Protocol::Connection::CarrierPigeon;
  use X11::Protocol::Connection;
  @ISA = ('X11::Protocol::Connection');
  sub open { ... }
  sub give { ... }
  sub get { ... }
  sub fh { ... }
  # In program
  $connection = X11::Protocol::Connection::CarrierPigeon
    −>open($host, $display_number);
  $x = X11::Protocol−>new($connection);
  $reply = unpack("I", $connection−>get(4));
  use IO::Select;
  $sel = IO::select−>new($connection−>fh);
  if ($sel−>can_read == $connection−>fh) ...


This module is an abstract base class for the various X11::Protocol::Connection::* modules that provide connections to X servers for the X11::Protocol module. It provides stubs for the following methods:


  $conn = X11::Protocol::Connection::Foo−>open($host, $display_num)

Open a connection to the specified display (numbered from 0) on the specified $host.



Send the given data to the server. Normally, this method is used only by the protocol module itself.


  $data = $conn−>get($n)

Read $n bytes of data from the server. Normally, this method is used only by the protocol module itself.


  $filehandle = $conn−>fh

Return an object suitable for use as a filehandle. This is mainly useful for doing select() and other such system calls.


Stephen McCamant <>.


perl(1), X11::Protocol, X11::Protocol::Connection::Socket, X11::Protocol::Connection::FileHandle, X11::Protocol::Connection::INETSocket, X11::Protocol::Connection::UNIXSocket, X11::Protocol::Connection::INETFH, X11::Protocol::Connection::UNIXFH.


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