Net::UDP - UDP sockets interface module

SYNOPSIS

    use Socket;                 # optional
    use Net::Gen;               # optional
    use Net::Inet;              # optional
    use Net::UDP;

DESCRIPTION

The Net::UDP module provides services for UDP communications over sockets. It is layered atop the Net::Inet and Net::Gen modules, which are part of the same distribution.

Public Methods

The following methods are provided by the Net::UDP module itself, rather than just being inherited from Net::Inet or Net::Gen.

new

Usage:

    $obj = new Net::UDP;
    $obj = new Net::UDP $host, $service;
    $obj = new Net::UDP \%parameters;
    $obj = new Net::UDP $host, $service, \%parameters;

Returns a newly-initialised object of the given class. If called for a derived class, no validation of the supplied parameters will be performed. (This is so that the derived class can add the parameter validation it needs to the object before allowing the validation.) Otherwise, it will cause the parameters to be validated by calling its init method, which Net::UDP inherits from Net::Inet. In particular, this means that if both a host and a service are given, that an object will only be returned if a connect() call was successful.

Protected Methods

none.

Known Socket Options

There are no object parameters registered by the Net::UDP module itself.

Known Object Parameters

There are no object parameters registered by the Net::UDP module itself.

TIESCALAR

Tieing of scalars to a UDP handle is supported by inheritance from the TIESCALAR method of Net::Gen. That method only succeeds if a call to a new method results in an object for which the isconnected method returns true, which is why it is mentioned in connection with this module.

Example:

    tie $x,Net::UDP,0,'daytime' or die;
    $x = "\n"; $x = "\n";
    print $y if defined($y = $x);
    untie $x;

This is an expensive re-implementation of date on many machines.

Each assignment to the tied scalar is really a call to the put method (via the STORE method), and each read from the tied scalar is really a call to the getline method (via the FETCH method).

Exports

none

AUTHOR

Spider Boardman <spider@Orb.Nashua.NH.US>