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warning C4996 - C/C++ - 清泛网 - 专注C/C++及内核技术

...可能会产生诸如内存泄露、缓冲区溢出、非法访问等安全问题。这些函数如:strcpy、strcat等。 对于这些问题,VC2005建议使用这些函数的更高级的安全版本,即在这些函数名后面加了一个_s的函数。这些安全版本函数使用起来更...
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领域驱动设计系列(五):事件驱动之异步事件 - 更多技术 - 清泛网 - 专注C/...

...可以看到,现在并行处理可以大大加快速度,但是有两个问题,第一个问题就是没有处理异常,所以让我们加上异常。 public void Publish<T>(T @event) where T : Event { var handlers = _eventHandlerFactory.GetHandlers<T>(); handlers....
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Tracking CPU and Memory usage per process

...nt aspects of how your PC works and are grouped by similarity into groups called "Performance Object". For your questions, you can choose the "Process", "Memory" and "Processor" performance objects. You then can see these counters in real time You can also specify the utility to save the performan...
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地图组件(高德地图) · App Inventor 2 中文网

...标。 此功能的可用性和准确性取决于用户是否启用了定位服务以及可用的位置提供商。 用户纬度 如果启用了显示用户位置,则返回用户的纬度。 用户经度 如果启用了显示用户位置,则返回用户的经度。 可见性 ...
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BLE(二)信道&amp;数据包&amp;协议栈格式 - 创客硬件开发 - 清泛IT社区,...

...一定频率范围下的频带资源(Frequency Band); BLE的市场定位是个体和民用,因此使用免费的ISM频段(频率范围是2.400-2.4835 GHz); 为了同时支持多个设备,将整个频带分为40份,每份的带宽为2MHz,称作RF Channel。 所以经过上面...
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Why is Node.js single threaded? [closed]

...rvers every client request is instantiated on a new thread. But in Node.js all the clients run on the same thread (they can even share the same variables!) I understand that I/O operations are event-based so they don't block the main thread loop. ...
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Is cout synchronized/thread-safe?

...f particular interest here is the fact that cout is buffered. Even if the calls to write (or whatever it is that accomplishes that effect in that particular implementation) are guaranteed to be mutually exclusive, the buffer might be shared by the different threads. This will quickly lead to corrupt...
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C++ 打开文件,以清空覆盖的方式 - C/C++ - 清泛网 - 专注C/C++及内核技术

... 以追加的方式打开文件 ios::ate:    文件打开后定位到文件尾,ios:app就包含有此属性 ios::binary:  以二进制方式打开文件,缺省的方式是文本方式。两种方式的区别见前文 ios::in:    文件以输入方式打开(...
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Lock-free multi-threading is for real threading experts

... the time is that you do not have dedicated locks - instead you treat e.g. all elements in an array or all nodes in a linked list as a "spin-lock". You read, modify and try to update if there was no update since your last read. If there was, you retry. This makes your "locking" (oh, sorry, non-locki...
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ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术

...zmq_recv函数返回错误信息 ,并使用zmq_strerror函数进行错误定位 if(zmq_recv(pSock, szMsg, sizeof(szMsg), 0) < 0) { printf("error = %s\n", zmq_strerror(errno)); continue; } printf("received message : %s\n", szMsg); ...