/usr/include/Poco/Net/MulticastSocket.h is in libpoco-dev 1.8.0.1-1ubuntu4.
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// MulticastSocket.h
//
// Library: Net
// Package: Sockets
// Module: MulticastSocket
//
// Definition of the MulticastSocket class.
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Net_MulticastSocket_INCLUDED
#define Net_MulticastSocket_INCLUDED
#include "Poco/Net/Net.h"
#ifdef POCO_NET_HAS_INTERFACE
#include "Poco/Net/DatagramSocket.h"
#include "Poco/Net/NetworkInterface.h"
namespace Poco {
namespace Net {
class Net_API MulticastSocket: public DatagramSocket
/// A MulticastSocket is a special DatagramSocket
/// that can be used to send packets to and receive
/// packets from multicast groups.
{
public:
MulticastSocket();
/// Creates an unconnected, unbound multicast socket.
///
/// Before the multicast socket can be used, bind(),
/// bind6() or connect() must be called.
///
/// Notice: The behavior of this constructor has changed
/// in release 2.0. Previously, the constructor created
/// an unbound IPv4 multicast socket.
explicit MulticastSocket(SocketAddress::Family family);
/// Creates an unconnected datagram socket.
///
/// The socket will be created for the
/// given address family.
MulticastSocket(const SocketAddress& address, bool reuseAddress = false);
/// Creates a datagram socket and binds it
/// to the given address.
///
/// Depending on the address family, the socket
/// will be either an IPv4 or an IPv6 socket.
MulticastSocket(const Socket& socket);
/// Creates the DatagramSocket with the SocketImpl
/// from another socket. The SocketImpl must be
/// a DatagramSocketImpl, otherwise an InvalidArgumentException
/// will be thrown.
~MulticastSocket();
/// Destroys the DatagramSocket.
MulticastSocket& operator = (const Socket& socket);
/// Assignment operator.
///
/// Releases the socket's SocketImpl and
/// attaches the SocketImpl from the other socket and
/// increments the reference count of the SocketImpl.
void setInterface(const NetworkInterface& interfc);
/// Sets the interface used for sending multicast packets.
///
/// To select the default interface, specify an empty
/// interface.
///
/// This is done by setting the IP_MULTICAST_IF/IPV6_MULTICAST_IF
/// socket option.
NetworkInterface getInterface() const;
/// Returns the interface used for sending multicast packets.
void setLoopback(bool flag);
/// Enable or disable loopback for multicast packets.
///
/// Sets the value of the IP_MULTICAST_LOOP/IPV6_MULTICAST_LOOP
/// socket option.
bool getLoopback() const;
/// Returns true iff loopback for multicast packets is enabled,
/// false otherwise.
void setTimeToLive(unsigned value);
/// Specifies the TTL/hop limit for outgoing packets.
///
/// Sets the value of the IP_MULTICAST_TTL/IPV6_MULTICAST_HOPS
/// socket option.
unsigned getTimeToLive() const;
/// Returns the TTL/hop limit for outgoing packets.
void joinGroup(const IPAddress& groupAddress);
/// Joins the specified multicast group at the default interface.
void joinGroup(const IPAddress& groupAddress, const NetworkInterface& interfc);
/// Joins the specified multicast group at the given interface.
void leaveGroup(const IPAddress& groupAddress);
/// Leaves the specified multicast group at the default interface.
void leaveGroup(const IPAddress& groupAddress, const NetworkInterface& interfc);
/// Leaves the specified multicast group at the given interface.
private:
static NetworkInterface findFirstInterface(const IPAddress& groupAddress);
/// Returns first multicast-eligible network interface.
};
} } // namespace Poco::Net
#endif // POCO_NET_HAS_INTERFACE
#endif // Net_MulticastSocket_INCLUDED
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