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在C++中,結合Socket庫和異步IO可以通過使用異步Socket庫或事件驅動庫來實現。這些庫允許您在不阻塞主線程的情況下處理網絡通信。以下是一些建議的庫和方法:
#include <boost/asio.hpp>
#include <iostream>
using namespace boost::asio;
using boost::system::error_code;
int main() {
io_context io_context;
ip::tcp::resolver resolver(io_context);
ip::tcp::resolver::query query(ip::tcp::v4(), "example.com", "80");
ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
ip::tcp::socket socket(io_context);
async_connect(socket, endpoint_iterator,
[&](const error_code& error) {
if (!error) {
std::cout << "Connected to server" << std::endl;
// Perform asynchronous read/write operations here
} else {
std::cout << "Error: " << error.message() << std::endl;
}
});
io_context.run();
return 0;
}
#include <Poco/Net/Socket.h>
#include <Poco/Net/StreamSocket.h>
#include <Poco/Event.h>
#include <iostream>
using namespace Poco::Net;
using namespace Poco;
int main() {
Event ev;
StreamSocket socket("example.com", 80);
ev.setCallback(&socket, &StreamSocket::readyRead,
[&]() {
char buffer[1024];
int n = socket.read(buffer, sizeof(buffer));
if (n > 0) {
std::cout << "Received data: " << std::string(buffer, n) << std::endl;
} else {
std::cout << "Connection closed" << std::endl;
}
});
ev.setCallback(&socket, &StreamSocket::readyWrite,
[&]() {
std::cout << "Data written to server" << std::endl;
});
ev.setTimer(1000, &Event::cancel);
ev.start();
ev.wait();
socket.close();
return 0;
}
這些示例展示了如何使用Boost.Asio和Poco庫將Socket庫與異步IO結合使用。您可以根據項目需求選擇合適的庫,并根據其文檔進行相應的編程。
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