runtime

I want to get a detailed look at what's going on both before and after main() using GDB. Would it be enough just to recompile glibc with -g and link against that? if you want to play with the debugger, you can use GDB this way: install the debug-info for the `glibc` package ( here is the way to do it with Fedora, I don't know about the other distros) or point GDB to a consistent debug file directory: (gdb) show debug-file-directory The directory where separate debug symbols are searched for is "/usr/lib/debug". (gdb) set debug-file-directory ... (it's /usr/lib/debug/lib64/libc-2.14.so.debug in

I'm trying to execute some code inside a string in runtime. I.E. Dim code As String = "IIf(1 = 2, True, False)" How do i run the code inside code string ? As @ElektroStudios said - the proper way to do this is to use the CodeDom compiler , but this is a bit overkill for something as simple as this. You can sort of cheat and harness the power of a DataColumn Expression So for example: Dim formula = "IIF(Condition = 'Yes', 'Go', 'Stop')" Dim value As String = "Yes" Dim result As String 'add a columns to hold the value Dim colStatus As New DataColumn With colStatus .DataType = System.Type.GetType

Does C# offer a way to create Enum type from scratch using reflection? Suppose, I have a collection of strings : {"Single", "Married", "Divorced"} and I'm willing to build the following enum type in runtime: enum PersonStatus { Single, Married, Divorced } Is this somehow possible? Not without doing really gnarly things like generating assemblies using Emit. How would you use such an enum anyway? Whats the real goal here? EDIT: Now that we know what you really want to do, this page suggests that you can acheive your goal using code like the following: private void listViewComplex

i want to execute a setup.exe installer which installes a software on vista with java 1.6. The user is not an administrator. When i try to start the process i get the error message: CreateProcess error=740 which indicates, that the user has not enough rights for starting the process. Can i submit a flag or an option to indicate, the the process should execute with administrator rights? Vista itself does have this functionality inside the menu toolbar. Can i use this function in Java. I call the following code Runtime rt = Runtime.getRuntime(); Process process; try { String fileToExecute = new

Mysql作为目前世界上使用最广泛的免费数据库，相信所有从事系统运维的工程师都一定接触过。但在实际的生产环境中，由单台Mysql作为独立的数据库是完全不能满足实际需求的，无论是在安全性，高可用性以及高并发等各个方面。 因此，一般来说都是通过 主从复制（Master-Slave）的方式来同步数据，再通过读写分离（MySQL-Proxy）来提升数据库的并发负载能力 这样的方案来进行部署与实施的。 读写分离应用： mysql-proxy：Oracle，https://downloads.mysql.com/archives/proxy/ Atlas：Qihoo，https://github.com/Qihoo360/Atlas/blob/master/README_ZH.md dbproxy：美团，https://github.com/Meituan-Dianping/DBProxy Cetus：网易乐得，https://github.com/Lede-Inc/cetus Amoeba：https://sourceforge.net/projects/amoeba/ Cobar：阿里巴巴，Amoeba的升级版 Mycat：基于Cobar， http://www.mycat.io/ ProxySQL：https://proxysql.com/ ProxySQL ProxySQL：

Is there a solution to configure the reflection library so that it scans also JAR's which are added at runtime with URLClassLoader? For now, reflections just scans the URLs in the ClassLoader. This is the configuration which I am using now: Reflections reflections = new Reflections(new ConfigurationBuilder().setUrls(ClasspathHelper.forClassLoader())); I couldn't find any hints in the doc of the reflections library. EDIT: This is how I load the jar File: File f = new File("C:/Users/mkorsch/Desktop/test-reflections.jar"); URLClassLoader urlCl = new URLClassLoader(new URL[] {f.toURI().toURL()}

目录 何谓单例模式？ 单例模式的优点 单例模式实现整体思路流程 单例模式的适用场景 单例模式的八种姿态写法 JDK源码中单例模式的应用 单例模式总结 前言 网上泛滥流传单例模式的写法种类，有说7种的，也有说6种的，当然也不排除说5种的，他们说的有错吗？其实没有对与错，刨根问底，写法终究是写法，其本质精髓大体一致！因此完全没必要去追究写法的多少，有这个时间还不如跟着宜春去网吧偷耳机、去田里抓青蛙得了，一天天的.... 言归正传...单例模式是最常用到的设计模式之一，熟悉设计模式的朋友对单例模式绝对不会陌生。同时单例模式也是比较简单易理解的一种设计模式。 @ 何谓单例模式？ 专业术语 单例模式是一种常用的软件设计模式，其定义是单例对象的类只能允许一个实例存在。许多时候整个系统只需要拥有一个的全局对象，这样有利于我们协调系统整体的行为。比如在某个服务器程序中，该服务器的配置信息存放在一个文件中，这些配置数据由一个单例对象统一读取，然后服务进程中的其他对象再通过这个单例对象获取这些配置信息。这种方式简化了在复杂环境下的配置管理。 单例模式，简单的说就是 一个类只能有一个实例，并且在整个项目中都能访问到这个实例。 单例模式的优点 1、在内存中只有一个对象，节省内存空间。 2、避免频繁的创建销毁对象，可以提高性能。 3、避免对共享资源的多重占用。 4、可以全局访问。 单例模式实现整体思路流程

直接开始 1 服务器克隆项目 git clone git@*****.com/project.git 2 更改所有者 chown www:www /www/wwwroot/project/* -R 3 project 根目录 chmod -R 777 .git/* 4 project 根目录 chmod -R 777 runtime/* 5 project 根目录 .gitignore /vendor *.log /thinkphp .env /runtime 完犊子了。告辞！ 来源： https://www.cnblogs.com/richerdyoung/p/11931112.html