问Boost-ASIO async_receive_from函数过载问题(+动态指针)EN指针函数和函数指针是C语言里两个比较绕的概念。但是不仅面试题爱考，实际应用中也比较广泛。很多人因为搞不清这两个概念，干脆就避而远之，我刚接触C语言的时候对这两个概念也比较模糊，特别是当指针函数、函数指针、函数指针变量、函数指针数组放在一块的时候，能把强迫症的人活活逼疯。 ...
问boost:asio async_receive_from同步运行ENasio包含errorcode参数的函数，不会抛出异常 可以尝试connect...
把一个io_service对象绑定到多个线程。此时需要boost::asio::strand来确保handler不会被同时执行,因为异步操作,比如async_write、async_receive_from之类会影响到临界区buffer
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...
In this case, the protocol version is decided when you receive CONNECT packet. Continuous packet sending You can send MQTT packets before the previous sending is not completed. Auto acquiring/mapping topic alias is supported. In addition, when resend PUBLISH packet after reconnecting, topic ...
The number of jobs used by ninja is derived from the number of CPU cores of the building host if unspecified. Use the -j option to limit the job number if build jobs are running out of memory. If you attempt to run ninja and receive a message that reads g++: fatal error: Killed ...
In this instance, we need to reestablish the connection when the iPhone is back in range. The iPhone does not need to send any request to the server but needs to continuosly receive data (eg: every sec) from the server for live telemetry. ...
Publishing changes from background threads is not allowed; make sure to publish values from the main thread (via operators like receive(on:)) on model updates.As expected, some child views started updating wrongly. Boost Copy l99fiamingo question Aug...
An AsyncCommonEventResult object is returned byCommonEventSubscriber#goAsyncCommonEvent()in theCommonEventSubscriber#onReceiveEvent(CommonEventData)callback method. This allows your application to process the current common event on another thread instead of the main thread. However, this requires th...
Other I/O models need copy data(for send/receive) in system buffer from/to application buffer. In Async I/O, system knows the receiving/sending buffer when the io request is issued, so I can use it directly, no need to do memory copy between system space and user space.IV...