我在使用Boost asio的数据包时遇到问题,让我解释一下。
#include <boost/asio.hpp>
#include <cstdlib>
#include <iostream>
#include <memory>
#include <utility>
#include "../configuration/constants.h" // port = 2013 ; maxLength = 512
class client : public std::enable_shared_from_this<client>
{
public:
client(boost::asio::ip::tcp::socket socket) : m_socket(std::move(socket)){}
void start()
{
read();
}
private:
void read()
{
auto self(shared_from_this());
m_socket.async_read_some(boost::asio::buffer(m_data, sizeof(m_data)), [this, self](boost::system::error_code error, std::size_t length)
{
if (!error)
{
std::cout << m_data;
send(length);
}
});
}
void send(std::size_t length)
{
auto self(shared_from_this());
boost::asio::async_write(m_socket, boost::asio::buffer(m_data, length), [this, self](boost::system::error_code error, std::size_t)
{
if (!error)
{
start();
}
});
}
boost::asio::ip::tcp::socket m_socket;
char m_data[maxLength];
};
class server
{
public:
server(boost::asio::io_service& ios, unsigned short port) : m_acceptor(ios, boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), port)), m_socket(ios)
{
acceptConnection();
}
private:
void acceptConnection()
{
m_acceptor.async_accept(m_socket, [this](boost::system::error_code error)
{
if (!error)
std::make_shared<client>(std::move(m_socket))->start();
acceptConnection();
});
}
boost::asio::ip::tcp::acceptor m_acceptor;
boost::asio::ip::tcp::socket m_socket;
};
void connexionTCP()
{
try
{
std::cout << "TCP open" << std::endl;
boost::asio::io_service iosConnector;
server server(iosConnector, port); // port = 2013
iosConnecteur.run();
}
catch (std::exception& e)
{
std::cerr << "Exception : " << e.what() << "\n";
}
}
如果我尝试运行它,TCP open就是输出。如果客户端发送“Hi”,则输出(在控制台中)将为:
HiÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͲ²²²½½½½½½½½
最后一个代码已完成。任何的想法 ?顺便说一下,当我使用puTTY作为客户端时,当我发送“Hi”时,我会收到“Hi”。这只是在控制台中给我写这个。
提前致谢
答案 0 :(得分:0)
在打印之前将'\0'
放在角色阵列的末尾:)
if (!error)
{
m_data[length] = '\0';
std::cout << m_data;
send(length);
}
答案 1 :(得分:0)
嗯,我做到了。 当我读到某些东西时,数据长度是变量size_t长度。 所以,从中我做到了:
if (!error) // If there is no error
{
for (int i = 0; i < (length); i++) // If i < length
{
std::cout << m_data[i]; // Print every char since i < length
if (i == length) // Just to make the output more presentable
std::cout << "\n"; // Enter
}
start(); // Back to the begining.
}
输入:“嗨” 输出:“嗨”\ n
感谢您的帮助,Drax和sehe。见到你。
我现在遇到的问题是我无法在std :: string中存储m_data,因为这是for。我尝试了矢量,但没办法。我想得到它,因为它比使用字符串更容易使用字符串。 所以我想要做的是:在字符串中获取for的输出m_data。