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Components of the program As shown above. Program from code to stack address from small to large, There is an unreadable area before. text; The size of. Text +. Rodata +. Data +. BSS +. Heap +. Stack is determined at the program compilation stage; . text segment: the area where the program code is stored; . rodata segment: ro means read ...

preface Last P4, into network data plane programming This paper briefly introduces P4 and builds P4 network topology through the command line. The building process requires a lot of commands, which is cumbersome. In this article, we will build P4 through python script. The code involved in this article is: https://github.com/cykun/p4-mininet ...

Singleton mode Why single example Ensure that a class has only one object, which is commonly used to access database operations, service configuration files, etc. Key points of singleton 1. The default constructor is private, and the copy constructor and copy assignment function should also be disabled by private or = delete. (it cannot be ...

preface When we write a piece of code to process the data, the data is stored in memory. When the program exits, the data does not exist. When the program runs next time, the data must be re entered, which involves the problem of data persistence. The general methods of data persistence include storing the data in disk files Stored in th ...

In the C11 standard document, the operation resu lt s of the relational operators <, >, < =, > = are specified. When true, it returns 1, when false, it returns 0, and the return type is integer. Operator = == Similar to relational operators, it returns 1 or 0 except that the operation priority is low. The definition of t ...

new __new__(cls, *args, **kwargs) Create an instance (usually cls or other types of instances) init __init__(self, *args, **Kwargs) After the instance is created by new, it is executed before being returned to the caller If new returns an instance of cls, the init method is automatically executed, self is the instance created, and the in ...

Previous articles in this series: Simple implementation of logical programming language (using C ා) - 1. Introduction of logical programming language This is a classic Prolog exercise. The Chinese translation is from Ruan Yifeng's article Introduction to Prolog language. problem Mr. Boddy died of murder. There are six suspects. Each of them ...

Today, let's talk about the exception handling mechanism in Spring Security. In Spring Security's filter chain, the ExceptionTranslationFilter filter is specially used to handle exceptions. In the ExceptionTranslationFilter, we can see that exceptions are divided into two categories: authentication exceptions and authorization exceptions. The t ...

Last article I talked with my friends about the parsing process of XML files in Spring source code. I could have continued to look down to load core classes, but SongGe still hopes to be a little slower. Since I have to learn to understand, I can learn from XML There are also some other classes and concepts involved in the process of file parsi ...

Because of the company's business relationship, I find a way to shorten the interface generation from the tiktok open platform. Two interfaces need to be called here. Packet capturing analysis is as follows: Tiktok tiktok tiktok SDK currently provides basic capabilities for voice / login / authorization and sharing to vibrate. Tiktok tiktok ca ...