我正在启动Boost.Asio并尝试在官方网站上提供示例工作。
here`s客户端代码:无法真正了解构建tcp :: resolver :: query的参数是什么
using boost::asio::ip::tcp;
int _tmain(int argc, _TCHAR* argv[])
{
try {
boost::asio::io_service io_service;
tcp::resolver resolver(io_service);
tcp::resolver::query query(argv[1], "daytime");
tcp::resolver::iterator endpoint_iterator = resolver.resolve(query);
tcp::resolver::iterator end;
tcp::socket socket(io_service);
boost::system::error_code error = boost::asio::error::host_not_found;
while(error && endpoint_iterator != end) {
socket.close();
socket.connect(*endpoint_iterator++, error);
}
if (error)
throw boost::system::system_error(error);
for(;;) {
boost::array buf;
boost::system::error_code error;
std::size_t len = socket.read_some(boost::asio::buffer(buf), error);
if (error == boost::asio::error::eof)
break; //connection closed cleanly by peer
else if (error)
throw boost::system::system_error(error);
std::cout.write(buf.data(), len);
}
}
catch(std::exception& e) {
//...
}
return 0;
}
的问题是 - 我无法找出参数是从命令提示符下运行的程序是什么?
TCP ::解析器::查询查询( “本地主机”, “白天”); //它的工作原理 //我想测试localhost上的例子 – chester89 2009-02-15 17:56:39