我曾经尝试按照来自 boost 的教程操作,但是该API并不完全相同,因此我不得不猜测某些部分。
服务器和客户端连接成功,但是客户端未收到消息。程序的输出如下:
到目前为止,我所做的尝试如下所示:
#include <iostream>
#include <experimental/internet>
#include <experimental/socket>
#include <thread>
#include <chrono>
using namespace std::experimental;
int main(int argc, char* argv[])
{
std::thread server = std::thread([]()
{
std::cout << "Starting server" << std::endl;
net::io_context context;
net::ip::tcp::endpoint endpoint{net::ip::tcp::v4(), 1234};
net::ip::tcp::acceptor acceptor{context, endpoint};
acceptor.non_blocking(true);
std::cout << "opened server on " << endpoint << std::endl;
std::error_code error;
net::ip::tcp::socket socket(context);
while (true)
{
socket = acceptor.accept(error); //accept connections
if (!error) //if connected with a client
{
std::cout << "Connected to client!" << std::endl;
std::this_thread::sleep_for(std::chrono::seconds(2));
std::string data = "Hello World!";
net::const_buffer buf(&data, sizeof(data));
socket.send(buf);
std::cout << "Sent data!" << std::endl;
while(true) {}
}
}
});
std::thread client = std::thread([]()
{
net::io_context context;
net::ip::tcp::socket socket(context);
net::ip::tcp::endpoint server{net::ip::tcp::v4(), 1234};
std::error_code error;
while(true)
{
socket.connect(server, error); //attempt to connect
if (!error) //if connected
{
std::cout << "Connected to server!" << std::endl;
net::mutable_buffer buf;
while(buf.size() == 0)
{
socket.receive(buf);
}
std::cout << "Received data!" << std::endl;
std::cout << buf.data() << std::endl;
while(true) {}
}
}
});
server.join();
return 0;
}
服务器和客户端连接成功,但是客户端未收到消息。程序的输出如下:
Starting server
opened server on 0.0.0.0:1234
Connected to server!
Connected to client!
Sent data!
然后它就永远等待。
我该如何使套接字正确地接收数据?