size_t len = socket.receive_from(asio::buffer(buf), from_endpoint); //异步发送与接受 socket.async_send_to(asio::buffer(msg), endpoint, &callback); socket.async_receive_from(asio::buffer(buf), from_endpoint, &callback); test.cpp #include <asio.hpp> class tcpServer { }; int main(...
receive_from (boost :: asio :: buffer (recv_buf ), remote_endpoint, 0, error ) ; if (error && error ! = boost :: asio :: error :: message_size ) throw boost :: system :: system_error (error ) ; std :: string message = make_daytime_string ( ) ; // 向远程端点发送字符串...
std::size_t receive(const boost::asio::mutable_buffer& buffer, boost::posix_time::time_duration timeout, boost::system::error_code& ec) { deadline_.expires_from_now(timeout); ec = boost::asio::error::would_block; std::size_t length = 0; socket_.async_receive(boost::asio::buffer...
boost::asio async_write也不能保证一次发完所有数据 二 只有看boost源码才能弄明白发生了什么。首先我是将vector里面写入了数据,然后用boost::asio::buffer将vector构造成了mutable_buffer_1对象。 参考该文档的重载形式:http://www.boost.org/doc/libs/1_53_0/doc/html/boost_asio/reference/buffer/overload24...
async_receive_from 函数是Boost.Asio库中的一个异步操作,用于从 UDP 套接字接收数据,其触发机制基于事件驱动和回调函数。以下是 async_receive_from触发机制的详细步骤: 1. 异步操作启动:调用 async_receive_from 启动异步读取操作,操作不会立即执行,而是被放入内部等待队列。
1 socket_.async_read_some(asio::buffer(&m_packet, sizeof(m_packet)), 2 boost::bind(&tcp_connection::HandleReadCardKey, shared_from_this(), 3 _1)); 1. 2. 3. 再是发送数据:使用async_write,要循环调用async_write发送数据时,一定要确保前面数据已经发送。
asio包含errorcode参数的函数，不会抛出异常 可以尝试connect之后，判断错误码， boost::asio::error::...
(io_service, SIGTERM); signals.async_wait(boost::bind(&boost::asio::io_service::stop, &io_service)); sock.connect(endpoint);while(true) {charrequest[max_length] ="Message to be sent"; int iter =0; cout <<"Enter number of messages to pump:"; cin >> iter;for(int i=0; i < ...
boost::asio::buffer(async_buffer->data(),4) 于是就死活发不出去,,, 最后看到网上的博文,他是因为使用vector作buff,每次发送的数据小于他指定的数据,就是因为他给的buff参数小于vector实际的参数,于是我灵机一动,改成了这样: boost::asio::async_write(socket_,boost::asio::buffer(async_buffer->data()...
asio::ip::tcp::socket& TcpConnectionHandler::socket() { return socket_; } void TcpConnectionHandler::start() { async_read_until(socket_, message_, "\r\n", boost::bind(&TcpConnectionHandler::handle_read, shared_from_this(), boost::asio::placeholders::error, boost::asio::placeholders:...