76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
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#ifndef TCP_LINK_HPP_A16QFBX3
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#define TCP_LINK_HPP_A16QFBX3
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#include "link_layer.hpp"
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#include <vanetza/common/byte_buffer.hpp>
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/ip/tcp.hpp>
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#include <array>
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#include <list>
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static constexpr std::size_t layers_ = num_osi_layers(vanetza::OsiLayer::Physical, vanetza::OsiLayer::Application);
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class TcpSocket
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{
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public:
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enum Status
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{
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UNDEFINED = 0,
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CONNECTED = 1,
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ACCEPTING = 2,
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ERROR = 3
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};
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using IndicationCallback = std::function<void(vanetza::CohesivePacket&&, const vanetza::EthernetHeader&)>;
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TcpSocket(boost::asio::io_context&, IndicationCallback*);
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void connect(boost::asio::ip::tcp::endpoint);
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void request(std::array<boost::asio::const_buffer, layers_>);
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void do_receive();
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void receive_handler(boost::system::error_code, std::size_t);
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std::size_t get_next_packet_size();
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void pass_up(vanetza::ByteBuffer&&);
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boost::asio::ip::tcp::socket& socket() { return socket_; }
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Status status() { return status_; }
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void status(Status s) { status_ = s; }
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private:
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Status status_ = UNDEFINED;
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boost::asio::io_context* io_context_;
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boost::asio::ip::tcp::endpoint endpoint_;
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boost::asio::ip::tcp::socket socket_;
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vanetza::ByteBuffer rx_buffer_;
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vanetza::ByteBuffer rx_store_;
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IndicationCallback* callback_;
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};
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class TcpLink : public LinkLayer
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{
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public:
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TcpLink(boost::asio::io_context&);
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void indicate(IndicationCallback) override;
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void request(const vanetza::access::DataRequest&, std::unique_ptr<vanetza::ChunkPacket>) override;
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void connect(boost::asio::ip::tcp::endpoint);
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void accept(boost::asio::ip::tcp::endpoint);
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void accept_handler(boost::system::error_code& ec, boost::asio::ip::tcp::endpoint ep, TcpSocket* sock);
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private:
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std::list<TcpSocket> sockets_;
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std::map<boost::asio::ip::tcp::endpoint, boost::asio::ip::tcp::acceptor> acceptors_;
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IndicationCallback callback_;
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boost::asio::io_context* io_context_;
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std::array<vanetza::ByteBuffer, layers_> tx_buffers_;
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std::list<boost::asio::ip::tcp::endpoint> waiting_endpoints_;
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};
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#endif /* TCP_LINK_HPP_A16QFBX3 */
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