runtime

Is it possible to create a complete fork of a 'PROGRAM' in execution into two sub-programs from a single execution sequence ? The sub-programs produced are completely identical. They have the same execution sequences and values but now they are two different programs. It is like creating a clone of an Object, thus giving us two different objects of the same type to work on. But instead of just an object and some values, here we want to create a completely parallel execution sequence of a Program already loaded in the JVM (would prefer an answer for Java). You seem to be looking for the Java

In C++ I have a tuple with some elements in it: std::tuple <int, char> my_tuple(3, 'q'); And some template function that perfectly works both on integers and chars: template <class T> void my_function(T); Now, say that at runtime I want to run my_function on one of the elements of my tuple (but I don't know which). I noticed that it is not possible to do something like: unsigned int n; // Give a value to n my_function(std::get <n> (my_tuple)); However, in principle what I need should be identical to something like: unsigned int n; // Give a value to n switch(n) { case 0: my_function(std::get

I want to add some compiled classes (.class files) to directories(packages) in current Jar file at runtime How can I do that? Thanks This cannot be done - To update a Jar file you need to create a new one and overwrite the old one with the new one. Below is a sample on how you would do this: import java.io.*; import java.util.*; import java.util.zip.*; import java.util.jar.*; public class JarUpdate { /** * main() */ public static void main(String[] args) throws IOException { // Get the jar name and entry name from the command-line. String jarName = args[0]; String fileName = args[1]; // Create

Is there any possibility to create signals at runtime when needed? I'm doing something like this in a function: class WSBaseConnector(QObject) def __init__(self) -> None: super(QObject, self).__init__() self._orderBookListeners: Dict[str, pyqtSignal[OrderBookData]] = {} def registerOrderBookListener(self, market: str, listener: Callable[[OrderBookData], None], loop: AbstractEventLoop) -> None: try: signal = self._orderBookListeners[market] except KeyError: signal = pyqtSignal(OrderBookData) signal.connect(listener) self._orderBookListeners[market] = signal else: signal.connect(listener) As you

毫无疑问，Kubernetes 已经成为容器领域当之无愧的事实标准。除了 Google、Microsoft 等技术巨擘们在容器领域里多年的博弈外，国内的 BAT、滴滴、蚂蚁、今日头条等技术大厂，也都已将容器和 Kubernetes 列入未来的战略重心，无数中小型企业也正走在容器化的道路上。 一个很长但精彩的故事 打包发布阶段 在docker 之前有一个 cloud foundry Paas项目，使用 cf push 将用户的可执行文件和 启动脚本打进一个压缩包内，上传到cloud foundry 的存储中，然后cloud foundry 会通过调度器选择一个可以运行这个应用的虚拟机，然后通知这个机器上的agent 把应用压缩包下载下来启动。由于需要在一个虚拟机中 启动不同用户的应用，cloud foundry为客户的应用单独创建一个称作沙盒的隔离环境，然后在沙盒中启动这些应用进程。 PaaS 主要是提供了一种名叫“应用托管”的能力。虚拟机技术发展 ==> 客户不自己维护物理机、转而购买虚拟机服务，按需使用 ==> 应用需要部署到云端 ==> 部署时云端虚拟机和本地环境不一致。所以产生了两种思路 将云端虚拟机 做的尽量与 本地环境一样 无论本地还是云端，代码都跑在 约定的环境里 ==> docker 镜像的精髓 与《尽在双11》作者提到的 “docker 最重要的特质是docker

I know C# code can be compiled at runtime using C# . However I'm very very shaky at it since I just read about it a few minutes ago. I learn a lot better by examples. So tell me. If I want to compile something like: // MapScript.CS String[] LevelMap = { "WWWWWWWWWWWWWWWWWWW", "WGGGGGGGGGGGGGGGGGW", "WGGGGGGGGGGGGGGGGGW", "WWWWWWWWWWWWWWWWWWW" }; and use this array in my code, how would I go about it? In pseudocode I want to do something like this: Open("MapScript.CS"); String[] levelMap = CompileArray("levelMap"); // use the array LINQ Expression trees are probably the friendliest way of doing

在我们开发项目的时候，往往会产生一些不必要的文件，我们会选择忽略他们，不提交到版本控制中，那我们该如何做呢？ 步骤一：在项目根目录下，右键，git bash，在弹出的命令行输入框中输入命令：touch .gitignore，在根目录下创建.gitignore文件，由于是.开头的，没有文件名，所以不能直接在window下创建。 步骤二：vim .gitignore #编辑文件 也可以按照一定的规则，直接在文件夹中编写，规则如下： Application/Runtime/C* Application/Runtime/L* Application/Runtime/Q* Application/Runtime/T* Application/Runtime/P* desktop.ini .idea/* web.config vendor/* Uploads/* .user.ini Public/static/AuthToken_raw.js Error.log Application/Runtime/Migrate/* ThinkPHP/Library/Vendor/BDAi/lib/* !ThinkPHP/Library/Vendor/BDAi/lib/A*.php Application/Runtime/Data/* !Application/Runtime/Data/admin

I'm hacking together an editor for a game I'm working on and as part of that editor, I need to have textures, obviously. I've created a std::map variable as so, std::map<std::string, unsigned int> textures; In my image loading code, I have the following snippet. unsigned int id; glGenTextures(1, &id); glBindTexture(GL_TEXTURE_2D, id); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, imageWidth, imageHeight, 0, GL_RGB, GL_UNSIGNED_BYTE, imageData); glBindTexture(GL_TEXTURE

I have a Rscript in a String variable and I want to execute it from Java program and pass some variable to it. If I execute that R script standalone, it works fine. I have converted that R script to one line by escaping it everything by using Python program as shown below: import json jsonstr = json.dumps({"script": """\ #!/usr/bin/Rscript # read the data file library('jsonlite') library('rpart') args <- as.list(Sys.getenv(c( "path", "client_users"))) if (args[["path"]]==""){ args[["path"]] <- "." } # other stuff here # other stuff here """}) print jsonstr I use the printed string out and