Net::UNIX::Server(3) User Contributed Perl Documentation Net::UNIX::Server(3)NAMENet::UNIX::Server - UNIX-domain sockets interface module for listeners
SYNOPSIS
use Net::Gen; # optional
use Net::UNIX; # optional
use Net::UNIX::Server;
DESCRIPTION
The "Net::UNIX::Server" module provides additional services for UNIX-
domain socket communication. It is layered atop the "Net::UNIX" and
"Net::Gen" modules, which are part of the same distribution.
Public Methods
The following methods are provided by the "Net::UNIX::Server" module
itself, rather than just being inherited from "Net::UNIX" or
"Net::Gen".
new Usage:
$obj = new Net::UNIX::Server;
$obj = new Net::UNIX::Server $pathname;
$obj = new Net::UNIX::Server $pathname, \%parameters;
$obj = 'Net::UNIX::Server'->new();
$obj = 'Net::UNIX::Server'->new($pathname);
$obj = 'Net::UNIX::Server'->new($pathname, \%parameters);
Returns a newly-initialised object of the given class. This is
much like the regular "new" methods of other modules in this dis-
tribution, except that it does a "bind" rather than a "connect",
and it does a "listen". Unless specified otherwise with a "type"
object parameter, the underlying socket will be a datagram socket
("SOCK_DGRAM").
The examples above show the indirect object syntax which many pre-
fer, as well as the guaranteed-to-be-safe static method call.
There are occasional problems with the indirect object syntax,
which tend to be rather obscure when encountered. See
http://www.xray.mpe.mpg.de/mail-
ing-lists/perl5-porters/1998-01/msg01674.html for details.
See Net::TCP::Server for an example of running a server. The dif-
ferences are only in the module names and the fact that UNIX-domain
sockets bind to a pathname rather than to a port number. Of
course, that example is for stream ("type = SOCK_STREAM") sockets
rather than for datagrams. UNIX-domain datagram sockets don't need
to do an accept() (and can't where I've tested this code), and
can't answer back to their clients unless those clients have also
bound to a specific path name.
init
Usage:
return undef unless $self = $self->init;
return undef unless $self = $self->init(\%parameters);
return undef unless $self = $self->init($pathname);
return undef unless $self = $self->init($pathname, \%parameters);
Verifies that all previous parameter assignments are valid (via
"checkparams"). Returns the incoming object on success, and
"undef" on failure. Usually called only via a derived class's
"init" method or its own "new" call.
Protected Methods
[See the description in "Protected Methods" in Net::Gen for my defini-
tion of protected methods in Perl.]
None.
Known Socket Options
There are no socket options known to the "Net::UNIX::Server" module
itself.
Known Object Parameters
There are no object parameters registered by the "Net::UNIX::Server"
module itself.
Exports
default
None.
exportable
None.
tags
The following :tags are available for grouping exportable items:
:ALL All of the above exportable items.
THREADING STATUS
This module has been tested with threaded perls, and should be as
thread-safe as perl itself. (As of 5.005_03 and 5.005_57, that's not
all that safe just yet.) It also works with interpreter-based threads
('ithreads') in more recent perl releases.
SEE ALSONet::UNIX(3), Net::Gen(3)AUTHOR
Spider Boardman <spidb@cpan.org>
perl v5.8.8 2007-10-29 Net::UNIX::Server(3)
