function Foo() {this.name = “Foo”; this.output = function() {var result = “output function in “+ this.name; console.info(result); return result; };}function Bar () {this.name = “Bar”; this.output =
Tag: Mechanism
From the single-chip microcomputer to the operating system 7 – In-depth understanding of the delay mechanism of Freertos
If you haven’t studied the source code of the operating system, it’s not considered learning the operating system.
Time management includes two aspects: system beat and task delay management.
Locking mechanism for sharing memory consistency
I am developing a mechanism for exchanging data between two or more processes using shared memory on Linux. The problem is that a certain degree of concurrency control is required to maintain share
ZooKeeper Basic Mechanism Principle
Znode:
1. Znode is both a path (directory) and information (file)
2, Znode has two categories: One is divided into temporary nodes (session life cycle) and permanent nodes; two are divi
Springboot – Prevent repeated submission (lock mechanism — local lock, distributed lock)
To prevent duplicate submissions, it is mainly handled in the form of locks. If it is a stand-alone deployment, you can use a local cache lock (Guava). If it is a distributed deployment, you need t
Ten, HDFS NameNode work mechanism
[TOC]
txid:< br>namenode gives a unique id for each operation event (addition, deletion, modification operation), called txid, which is generally incremented from 0. For each additional opera
Cocos2dx Lua hot update multithreading mechanism
Multi-threading is actually implemented in cocos2dx. I started to think about how there is multi-threading in Lua? In fact, the send method of the C++ version of XMLHttpRequest will open a new thre
Android touch event delivery mechanism
Android touch event delivery mechanism A complete event delivery mainly includes three stages, namely event distribution, interception and consumption.< /p> 1.1 Types of touch events Touch events c
Android underlying memory recycling mechanism introduction
The bottom layer of Android is developed based on the Linux kernel. With the continuous update of Android versions, the memory recovery mechanism is constantly changing. This article briefly introd
The Keepalive mechanism of the HeartBeat Heartbeat and TCP Protocol is not specified
Many application layer protocols have a HeartBeat mechanism, usually the client sends to the server every short period of time Send a data packet to inform the server that it is still online and tr