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Atomic operationUsually, a = a + 1 in our code contains three instructions after being translated into assembly:ldr x0, &a add x0,x0,#1 str x0,&aNamely (1) Read a variable from memory to X0 register (2)X0 register plus 1 (3) Write X0 to memory aSince there are three instructions, they may be concurrent, which means that the returned ...

1. Notes Comments will not be executed. They are for those who write code. Writing comments is a good habit. We must pay attention to standardization when writing code at ordinary times. There are three types of annotations in Java A single line annotation can only annotate one line of text// Multiline annotation can annotate a paragraph of ...

JDK1. 8 source code analysis of concurrenthashmap jdk1.8 container initialization Source code analysis There are five construction methods in the ConcurrentHashMap of jdk8. None of the four construction methods initialize the internal array, but deal with the initial values of some variablesThe array initialization of concurrent HashMap of j ...

The security authentication in the fragmented cluster environment is basically the same as that in the replica set environment. However, the server environment and architecture of the partitioned cluster are relatively complex. It is recommended to directly add security authentication and authentication between servers when building the partiti ...

introduce About mermaid Mermaid allows you to create charts and visualizations using text and code. It is a Javascript based chart and chart tool that presents Markdown inspired text definitions to dynamically create and modify charts. Reference address: https://mermaid-js.github.io/mermaid/#/ Icon type flow chart graph TD; A-- ...

Original address: Debian 11 configuration optimization guide - WindSpiritIT 0x00 introduction This article applies only to configuring Debian 11 Bullseye The article includes both Gnome desktop and KDE desktop configurations, most of which are the same, and the differences are listed separately The update of Gnome desktop related configurat ...

This paper mainly explains the code and clarifies the code structure and ideas 1, Experimental purpose Master the basic principle of dictionary coding, program LZW decoder with C/C + + language, and analyze the encoding and decoding algorithm. 2, Experimental principle 1. Code (1) Code 0-255 is used to store the characters with Ascii c ...

First, let's briefly understand the process types of Electron - rendering process and main process Main process: Electron runs package JSON's main script process. Rendering process: a process that runs on a web page. An Electron application has and has only one main process. The script running in the main process presents the user interface by ...

Install git https://git-scm.com/downloadsgitlab/github should have a project (or create a new one) 1. Download the project on gitlab server Find our project, click the clone icon in the upper right corner, select http, and then copy the address. Just find a folder and create a new folder to store the project files that will be pulled d ...

View event system Although View does not belong to the four components, its role is comparable to the four components, and even more important than Receiver and Provider. In Android development, Activity undertakes this visualization function. At the same time, Android system provides many basic controls, such as Button, Textview, CheckBox, et ...