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...
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);...
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...
(&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_...
resolver.resolve("127.0.0.1", 5005); asio::connect(socket, endpoints); //socket同步的读写,buffer对象可以接受string、array、vector socket.write_some(asio::buffer(msg), error); size_t len = socket.read_some(asio::buffer(buf), error); //socket异步的读写 socket.async_write_some(asio::...
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(query); tcp::resolver::iterator end; boost::asio::connect(socket_, endpoint_iterator); } ~TcpClient() { socket_.close(); } void send(const std::string& message) { boost::asio::async_write(socket_, boost::asio::buffer(message), boost::bind(&TcpClient::handle_write,...
async_write Buffer asio::bufer asio::streambuf asio::buffer 获取缓冲区大小并防止缓冲区溢出 mutable_buffer 概述 Asio 是一个用于网络和低级 I/O 编程的跨平台 C++ 库,它使用现代 C++ 方法为开发人员提供一致的异步模型. io_context io_context 类为异步I/O对象的用户提供了核心I/O功能,包含: asio::ip...