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NIO source code series: the most detailed analysis in the history of Selector III Selector registration serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT); findKey(Selector sel) register(AbstractSelectableChannel ch, int ops, Object attachment) interestOps(int ops) setEventOps(Selectio ...

I. Preface From the beginning of graduate school to half a year's work, I have been contacting MCU SOC controllers with CPU as the core, but because of professional reasons, I have no idea about the internal structure and working principle of CPU. Today, I broke the blind spot from a blog. It is hereby declared that the design idea and code of ...

Reference resources https://www.cnblogs.com/liaojiafa/p/6087276.html Four hosts are in a LAN. The ip of LVS_master is 192.168.1.196, LVS backup is 192.168.1.197, the ip of two web servers is 192.168.1.200192.168.1.201, and the virtual ip is 192.168.1.198. It can be seen from the keepalived configuration file. The experimenta ...

ipvsadm The ipvsadm command is the management tool of lvs Cluster in the application layer. We can use this ipvsadm to manage the configuration of lvs. In fact, it implements the cluster service management: add, delete, change, RS management of cluster service: add, delete, change and view the cluster status. Management cluster service: add, ch ...

Linux Kernel 2.6.9 source code analysis – accept Let's take a look at the prototype: int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen)sockfd: this socket is used to listen to a port. When a client connects with the server, it uses this port number, which is associated with the so ...

The previous article mainly introduced two methods of @ bean @ ComponentScan package scanning injection. Today, I will introduce the related usage of @ Conditional injection and @ import component import 1. First, the usage of @ Conditional: judge according to certain conditions, register the beans ...

Example https://github.com/scwuaptx/HITCON-Training/tree/master/LAB/lab6   #include <stdio.h> #include <stdlib.h> #include <unistd.h> int count = 1337 ; int main(){ if(count != 1337) exit(1); count++; char buf[40]; setvbuf(stdout,0,2,0); puts("Try your ...

1,cd (change directory) switch to the specified directory -Return to last directory .. Return to the upper directory Enter to return to home directory /Root directory 2,cp (copy) copy a file or directory -r -R Recursively copy the contents of this directory and its subdirectories -p Copy past with file properties -f Force copy without aski ...

Installation of Docker in Centos8 of container technology 1, Docker introduction Docker Manual: https://docs.docker.com/install/linux/docker-ce/centos/ Docker is an open source / 246339) application container engine, which allows developers to package their applications and dependency packages into ...

Blog Outline:1, Get to know Git2, Git installation configuration3, Git workflow4, Git workspace, staging area, and version Library5, Git basic operation 1, Get to know Git Git is an open source distributed version control system for agile and efficient processing of any large or small project. Git is an open source version control software d ...