78 lines
2 KiB
C++
78 lines
2 KiB
C++
/*
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* Socket.cpp
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*
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* Created on: 02.09.2015
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* Author: jdi
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <cstdio>
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#include <cerrno>
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#include <cstring>
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#include <cstdlib>
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#include <iostream>
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#include <unistd.h>
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#include <asio.hpp>
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#include "Socket.h"
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#include "../Types.h"
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#include "../Utils.h"
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#include "../device/Host.h"
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#include "Packet.h"
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Socket::Socket(asio::io_service& io_service) :
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send_socket_(io_service), receive_socket_(io_service) {
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}
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void Socket::init(short dst_port, short src_port) {
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wildcard_endpoint_ = asio::ip::udp::endpoint(
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asio::ip::address::from_string("0.0.0.0"), src_port);
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local_endpoint_ = asio::ip::udp::endpoint(
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asio::ip::address::from_string("192.168.0.3"), src_port);
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broadcast_endpoint_ = asio::ip::udp::endpoint(
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asio::ip::address_v4::from_string("255.255.255.255"), dst_port);
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send_socket_.open(asio::ip::udp::v4());
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send_socket_.set_option(asio::socket_base::broadcast(true));
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send_socket_.set_option(asio::socket_base::reuse_address(true));
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send_socket_.bind(local_endpoint_); //TODO reuse Address
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receive_socket_.open(asio::ip::udp::v4());
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receive_socket_.set_option(asio::socket_base::broadcast(true));
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receive_socket_.set_option(asio::socket_base::reuse_address(true));
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receive_socket_.bind(wildcard_endpoint_); //TODO reuse Address
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}
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void Socket::send(bytes data) {
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unsigned char * a = &data[0];
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send_socket_.async_send_to(asio::buffer(a, data.size()),
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broadcast_endpoint_,
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[this](asio::error_code ec, std::size_t bytes_sent)
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{
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listen();
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});
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}
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void Socket::listen() {
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receive_socket_.async_receive_from(asio::buffer(data_, MAX_LENGTH),
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remote_endpoint_,
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[this](asio::error_code ec, std::size_t bytes_recvd)
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{
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if (ec || bytes_recvd == 0) {
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listen();
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} else {
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data_.resize(bytes_recvd);
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Packet p = Packet(Packet::DISCOVERY);
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p.encode(data_);
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p.parse(data_);
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datasets l = p.getPayload();
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if(!callback(p)) {
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listen();
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}
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}
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});
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//printf("Listen\n");
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}
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