Programmer Group

Preface This section mainly introduces the basic knowledge of Task, Async and Await in asynchronous programming. What is asynchrony? Instead of blocking the current thread to wait for processing to complete, asynchronous processing allows subsequent operations until other threads have completed processing and callbacks notify the thread. As ...

Protocol parsing in Socket is the most complex part in the design of Socket communication program. If your application layer protocol is not well designed or implemented, the common sticky package in Socket communication will make subcontracting unavoidable. SuperSocket has built-in CommandLine Protocol in command line format. If you use protoc ...

The Chinese name of PING (Packet InterNet Groper) is Internet Packet Explorer, which is a tool used to check whether the network connection of another host system on the network is normal. The ping command works by sending an ICMP message to another host system on the network. If a message is received by the designated system, it will send the ...

Multiprocess in Android Why use multi-process Multiprocess can avoid the method limitation of 65535, and because Android system has memory size limitation for each individual App application, it can increase the available memory through a multi-process approach of App. Open multi-process Opening multiple processes in Android is simple, ...

Based on the latest version of kafka_2.11-0.10.1.0, this paper describes the construction process of distributed Kafka cluster environment. Server List: 172.31.10.1 172.31.10.2 172.31.10.3 1. Download the kafka installation package Log on to Kafka http://kafka.apache.org/. Click the "Download" button on the left Select the corres ...

[Zinx tutorial catalogue] Zinx source code: https://github.com/aceld/zinxZinx Develops API DocumentsZinx Chapter 1 - IntroductionChapter 2 of Zinx - First Understanding of Zinx FrameworkZinx Chapter 3 - Basic Routing ModuleZinx Chapter 4 - Global ConfigurationZinx Chapter 5 - Message EncapsulationZinx Chapter 6 - Multi-Routing ...

C - A Plug for UNIXPOJ - 1087 Title: Give you some plugs and sockets. Plug and socket have different models, only the same model can match. Now there are k converters, each converter has infinite, but not necessarily all converter models. The function of the converter is to convert one plug into another plug. Now please at ...

Sockets are usually vs under windows, because the socket runtime may be in win-sdk I couldn't find ws2.32.lib in system 32 anyway, so I need to download this one. If I can find it anywhere else, click here. WS2.32 Download the file I uploaded to the cloud disk, password: 10nc. First, write two codes, client.cpp, server.cpp. The code comes ...

linux open file number too many open files solution too many open files The reason for this prompt is that the number of file/socket connections opened by the program exceeds the system settings. View the maximum number of open files per user ulimit -a fdipzone@ubuntu:~$ ulimit -a   core file size          (bloc ...

Old fellow hey Today, let's talk about koa's context.js and some libraries written by tj itself. context.js 'use strict'; const createError = require('http-errors'); const httpAssert = require('http-assert'); const delegate = require('delegates'); const statuses = require('statuses'); const proto = module.exports = { //As mentioned in th ...