名字本身就说明了一切：Asio 意即异步输入/输出。 该库可以让 C++ 异步地处理数据，且平台独立。 异步...
问使用boost::asio将resolve_handler绑定到解析器async_resolveEN即使Boost.Asio可以异步处理任何类型的数据...
这样我们继续跟踪boost::asio::detail::resolver_service<InternetProtocol>的async_resolve // Asynchronously resolve a query to a list of entries.template<typenameHandler>voidasync_resolve(implementation_type& impl,constquery_type& query, Handler& handler){// Allocate and construct an operation to wrap ...
(const boost::system::error_code& ec, boost::asio::ip::tcp::resolver::iterator it) { if (!ec) { sock.async_connect(*it, connect_handler); } } int main() { boost::asio::ip::tcp::resolver::query query("www.baidu.com", "80"); resolver.async_resolve(query, resolve_handler);...
resolver_.async_resolve(query, [this](constasio::error_code&err,tcp::resolver::results_type endpoints){ if(!err){ doConnect(endpoints); }else{ std::cerr<<"Resolve error: "<<err.message()<<"\n"; } }); // 启动IO服务线程
(&client::handle_read_header, this,// std::placeholders::_1,// std::placeholders::_2));//如果不传入this Error: error C4573: “client::socket_”的用法要求编译器捕获“this”,但当前默认捕获模式不允许使用“this”resolver_.async_resolve("www.yahoo.com","http", [this](constasio::error_...
endpoints) { asio::async_connect(socket_, endpoints, [this](std::error_code ec, ...
sock.async_read_some(boost::asio::buffer(buffer), read_handler); } } void resolve_handler(const boost::system::error_code& ec, boost::asio::ip::tcp::resolver::iterator it) { if (!ec) { sock.async_connect(*it, connect_handler); ...
发送数据也使用了异步方式(async_write_some), 同样要保证在整个异步发送期间缓冲区的有效性,所以也用boost::bind绑定了boost::shared_ptr。 对于客户端也一样,在connect和read_some方法前加一个async_前缀,然后加入回调即可,大家自己练习写一写。 ASIO的“便民措施” ...
resolve("example.com", "daytime"); tcp::socket socket(io_context); // 设置连接超时 boost::asio::deadline_timer timer(io_context); timer.expires_from_now(boost::posix_time::seconds(5)); // 设置超时时间为5秒 // 异步连接 boost::asio::async_connect(socket, endpoints, handle_connect);...