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Manual Reference Pages  -  X11::PROTOCOL::CONNECTION (3)

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NAME

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

CONTENTS

SYNOPSIS



  # 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);

  $connection->give($data);

  $reply = unpack("I", $connection->get(4));

  use IO::Select;
  $sel = IO::select->new($connection->fh);
  if ($sel->can_read == $connection->fh) ...



DESCRIPTION

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:

    open



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



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

    give



  $conn->give($data)



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

    get



  $data = $conn->get($n)



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

    fh



  $filehandle = $conn->fh



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

AUTHOR

Stephen McCamant <SMCCAM@cpan.org>.

SEE ALSO

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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perl v5.20.3 PROTOCOL::CONNECTION (3) 2003-01-27

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