removed code i have written learning boost::asio.
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41
message.cpp
41
message.cpp
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#include "message.h"
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using namespace boost;
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void message::send(boost::asio::ip::tcp::socket& socket)
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{
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system::error_code ec;
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asio::write(socket, asio::buffer(get_message_length() + get_message()), ec);
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if (ec)
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throw std::runtime_error("Networking error: " + ec.message());
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}
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void message::receive(boost::asio::ip::tcp::socket& socket)
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{
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system::error_code ec;
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asio::streambuf sb;
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std::istream is(&sb);
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std::string data;
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asio::read(socket, sb, asio::transfer_exactly(sizeof(size_t)), ec);
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is >> data;
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size_t len = std::stoull(data);
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asio::read(socket, sb, asio::transfer_exactly(len), ec);
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data.clear();
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data.reserve(len);
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is.clear();
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data = std::string(std::istreambuf_iterator<char>(is), std::istreambuf_iterator<char>());
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if (ec)
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throw std::runtime_error("Networking error: " + ec.message());
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process_data(data);
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}
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message::~message() {}
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20
message.h
20
message.h
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#pragma once
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#include <boost/asio.hpp>
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class message
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{
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protected:
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virtual std::string get_message_length() = 0;
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virtual std::string get_message() = 0;
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virtual void process_data(std::string&) = 0;
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public:
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void send(boost::asio::ip::tcp::socket&);
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void receive(boost::asio::ip::tcp::socket&);
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virtual ~message();
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};
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69
server.cpp
69
server.cpp
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#include <iostream>
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#include <boost/asio/io_service.hpp>
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#include <boost/asio/ip/tcp.hpp>
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#include <boost/asio/buffer.hpp>
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#include <boost/asio/write.hpp>
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#include <boost/asio/read.hpp>
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#include <ctime>
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using namespace boost::asio;
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using namespace boost::asio::ip;
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io_service ioservice;
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tcp::endpoint tcpendpoint{tcp::v4(), 2222};
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tcp::acceptor tcpacceptor{ioservice, tcpendpoint};
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tcp::socket sock{ioservice};
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std::vector<char> alldata;
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std::array<char, 4096> data;
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void read_handler(const boost::system::error_code& ec, std::size_t transferred)
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{
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if (!ec)
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{
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std::cout.write(data.data(), transferred);
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for (int i = 0; i < transferred; ++i)
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alldata.push_back(data[i]);
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sock.async_read_some(buffer(data), read_handler);
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}
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}
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void write_handler(const boost::system::error_code& ec, std::size_t transferred)
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{
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if (!ec)
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{
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tcp::endpoint remoteendpoint = sock.remote_endpoint();
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address ip = remoteendpoint.address();
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std::cout << transferred
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<< " bytes transferred to "
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<< ip.to_string() << ":" << remoteendpoint.port()
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<< std::endl;
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sock.async_read_some(buffer(data), read_handler);
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}
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}
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void accept_handler(const boost::system::error_code& ec)
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{
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if (!ec)
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{
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std::time_t now = std::time(nullptr);
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std::string time(std::ctime(&now));
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async_write(sock, buffer(time), write_handler);
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}
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}
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int main()
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{
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tcpacceptor.listen();
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tcpacceptor.async_accept(sock, accept_handler);
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// work, so the server does not stop listening
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auto work = std::make_shared<io_service::work>(ioservice);
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ioservice.run();
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return EXIT_SUCCESS;
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}
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@ -1,32 +0,0 @@
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#include "text_message.h"
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using namespace boost;
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text_message::text_message() {}
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text_message::text_message(std::string text):_text(text) {}
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std::string text_message::get_text()
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{ return _text; }
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std::string text_message::get_message_length()
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{
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auto sizetext = std::to_string(_text.size());
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return std::string(sizeof(size_t) - sizetext.size(), '0').append(sizetext);
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}
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std::string text_message::get_message()
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{ return _text; }
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void text_message::process_data(std::string& string)
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{ _text = string; }
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text_message::~text_message() {}
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@ -1,26 +0,0 @@
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#pragma once
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#include "message.h"
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#include <string>
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#include <iterator>
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class text_message : public message
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{
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private:
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std::string _text;
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protected:
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virtual std::string get_message_length() override;
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virtual std::string get_message() override;
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virtual void process_data(std::string&) override;
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public:
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text_message();
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text_message(std::string);
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std::string get_text();
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virtual ~text_message() override;
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};
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