UDPTransport.h

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Library General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * UDPTransport.h
 * Interface for the UDPTransport class
 * Copyright (C) 2007-2009 Simon Newton
 */

#ifndef PLUGINS_E131_E131_UDPTRANSPORT_H_
#define PLUGINS_E131_E131_UDPTRANSPORT_H_

#include "ola/acn/ACNPort.h"
#include "ola/network/IPV4Address.h"
#include "ola/network/Socket.h"
#include "plugins/e131/e131/PDU.h"
#include "plugins/e131/e131/PreamblePacker.h"
#include "plugins/e131/e131/Transport.h"

namespace ola {
namespace plugin {
namespace e131 {

/*
 * The OutgoingUDPTransport is a small shim that provides the options to
 * UDPTransportImpl.
 */
class OutgoingUDPTransport: public OutgoingTransport {
 public:
 OutgoingUDPTransport(class OutgoingUDPTransportImpl *impl,
 const ola::network::IPV4Address &destination,
 uint16_t port = ola::acn::ACN_PORT)
 : m_impl(impl),
 m_destination(destination),
 m_port(port) {
 }
 ~OutgoingUDPTransport() {}

 bool Send(const PDUBlock<PDU> &pdu_block);

 private:
 class OutgoingUDPTransportImpl *m_impl;
 ola::network::IPV4Address m_destination;
 uint16_t m_port;

 OutgoingUDPTransport(const OutgoingUDPTransport&);
 OutgoingUDPTransport& operator=(const OutgoingUDPTransport&);
};


class OutgoingUDPTransportImpl {
 public:
 OutgoingUDPTransportImpl(ola::network::UDPSocket *socket,
 PreamblePacker *packer = NULL)
 : m_socket(socket),
 m_packer(packer),
 m_free_packer(false) {
 if (!m_packer) {
 m_packer = new PreamblePacker();
 m_free_packer = true;
 }
 }
 ~OutgoingUDPTransportImpl() {
 if (m_free_packer)
 delete m_packer;
 }

 bool Send(const PDUBlock<PDU> &pdu_block,
 const ola::network::IPV4Address &destination,
 uint16_t port);

 private:
 ola::network::UDPSocket *m_socket;
 PreamblePacker *m_packer;
 bool m_free_packer;
};


class IncomingUDPTransport {
 public:
 IncomingUDPTransport(ola::network::UDPSocket *socket,
 class BaseInflator *inflator);
 ~IncomingUDPTransport() {
 if (m_recv_buffer)
 delete[] m_recv_buffer;
 }

 void Receive();

 private:
 ola::network::UDPSocket *m_socket;
 class BaseInflator *m_inflator;
 uint8_t *m_recv_buffer;
};
} // namespace e131
} // namespace plugin
} // namespace ola
#endif // PLUGINS_E131_E131_UDPTRANSPORT_H_