Manpages - IO_Socket_UNIX.3perl

IO::Socket::UNIX - Object interface for AF_UNIX domain sockets

use IO::Socket::UNIX; my $SOCK_PATH = “$ENV{HOME}/unix-domain-socket-test.sock”; # Server: my $server = IO::Socket::UNIX->new( Type => SOCK_STREAM(), Local => $SOCK_PATH, Listen => 1, ); my $count = 1; while (my $conn = $server->accept()) { $conn->print(“Hello ” . ($count++) . “\n”); } # Client: my $client = IO::Socket::UNIX->new( Type => SOCK_STREAM(), Peer => $SOCK_PATH, ); # Now read and write from $client

IO::Socket::UNIX provides an object interface to creating and using sockets in the AF_UNIX domain. It is built upon the IO::Socket interface and inherits all the methods defined by IO::Socket.

new ( [ARGS] )

Creates an IO::Socket::UNIX object, which is a reference to a newly created symbol (see the Symbol package). new optionally takes arguments, these arguments are in key-value pairs. In addition to the key-value pairs accepted by IO::Socket, IO::Socket::UNIX provides. Type Type of socket (eg SOCK_STREAM or SOCK_DGRAM) Local Path to local fifo Peer Path to peer fifo Listen Queue size for listen If the constructor is only passed a single argument, it is assumed to be a Peer specification. If the Listen argument is given, but false, the queue size will be set to 5. If the constructor fails it will return undef and set the $IO::Socket::errstr package variable to contain an error message. $sock = IO::Socket::UNIX->new(…) or die “Cannot create socket - $IO::Socket::errstr\n”; For legacy reasons the error message is also set into the global $@ variable, and you may still find older code which looks here instead. $sock = IO::Socket::UNIX->new(…) or die “Cannot create socket - $@\n”;

hostpath()

Returns the pathname to the fifo at the local end

peerpath()

Returns the pathanme to the fifo at the peer end

Socket, IO::Socket

Graham Barr. Currently maintained by the Perl Porters. Please report all bugs to <perlbug@perl.org>.

Copyright (c) 1996-8 Graham Barr <gbarr@pobox.com>. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.