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/*
Copyright (C) 2022
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
EDI output,
UDP and TCP transports and their configuration
*/
/*
This file is part of the ODR-mmbTools.
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 3 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "EDIConfig.h"
#include "AFPacket.h"
#include "PFT.h"
#include "Socket.h"
#include <vector>
#include <chrono>
#include <map>
#include <unordered_map>
#include <stdexcept>
#include <fstream>
#include <cstdint>
#include <thread>
#include <mutex>
namespace edi {
/** STI sender for EDI output */
class Sender {
public:
Sender(const configuration_t& conf);
Sender(const Sender&) = delete;
Sender operator=(const Sender&) = delete;
~Sender();
// Assemble the tagpacket into an AF packet, and if needed,
// apply PFT and then schedule for transmission.
void write(const TagPacket& tagpacket);
// Schedule an already assembled AF Packet for transmission,
// applying PFT if needed.
void write(const AFPacket& af_packet);
// Set the sequence numbers to be used for the next call to write()
// seq is for the AF layer
// pseq is for the PFT layer
void override_af_sequence(uint16_t seq);
void override_pft_sequence(uint16_t pseq);
private:
void run();
bool m_udp_fragmentation_warning_printed = false;
configuration_t m_conf;
std::ofstream edi_debug_file;
// The TagPacket will then be placed into an AFPacket
edi::AFPacketiser edi_afPacketiser;
// The AF Packet will be protected with reed-solomon and split in fragments
edi::PFT edi_pft;
std::unordered_map<udp_destination_t*, std::shared_ptr<Socket::UDPSocket>> udp_sockets;
std::unordered_map<tcp_server_t*, std::shared_ptr<Socket::TCPDataDispatcher>> tcp_dispatchers;
std::unordered_map<tcp_client_t*, std::shared_ptr<Socket::TCPSendClient>> tcp_senders;
// PFT spreading requires sending UDP packets at specific time, independently of
// time when write() gets called
std::thread m_thread;
std::mutex m_mutex;
bool m_running = false;
std::map<std::chrono::steady_clock::time_point, edi::PFTFragment> m_pending_frames;
size_t m_last_num_pft_fragments = 0;
};
}
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