Programmer Think

catalogue 1 byte order How to determine the byte order of the current byte 2-byte order conversion function 3 ip address translation function inet_pton / / String ip address to integer data inet_ntop / / convert integer data to string format ip address inet_addr() and inet_ntoa() 4 UDP overview 5 network programming interface socket ...

Ubuntu18. 04 implementation of ROS UDP server communication This section describes the udp Server sending and receiving data. UDP communication belongs to frame transmission. In the process of frame transmission, there is no requirement for the order and arrival of messages, and no verification is carried out. Therefore, UDP belongs to unrelia ...

Hello, I'm 😎 I wrote an article on hydrology earlier< Obtain the ip address and mac address of all connected devices under the current LAN >But what I didn't expect was that I was on the hot list, which was also my first article on the hot list, and the reading volume soared instantly 💥. However, few people have seen my hard core tech ...

Introduction to Internet of things and communication module Embedded Internet of things: ARM architecture certification, Huawei Internet of things certification, Ministry of industry and information technology Communication technology of Internet of things: wired communication Ethernet OSI7 layer network structure: Application layer: t ...

        With the development of the Internet environment, a series of security problems caused by network security problems will lead to the disclosure of trade secrets, economic losses of enterprises / individuals, and even cyber crime, or endanger national security.         In the current development ...

Experiment purpose and requirements Objective: by designing a personal telephone number query system, we can further be familiar with the concept, basic knowledge and skills of some binary trees, and use the basic knowledge and skills to solve simple object-oriented programming problems. Realize fast query according to the information entered b ...

Note: the article comes from   Write-Ahead Log , the author works at Thoughtworks   Martin Fowler . This paper mainly writes "pre write log", a common technology in modern distributed database. Pre write log The persistence guarantee is provided by persisting each state change to the log in the form of command without ref ...

Transmission control protocol TCP The ultimate purpose of transport layer protocol is to provide reliable end-to-end transmission of data TCP is a connection oriented protocol, because it will initiate a formal connection before transmitting data to track the delivery of data packets. When the transmission is about to end, he will officiall ...

1.3 DNS processing module dnspython dnspython yes python Implementation of a DNS Toolkit, which supports almost all record types, can Used for query, transmission and dynamic update ZONE Information and support TSIG(Transaction signature) validation message and EDNS0(extend DNS). In terms of system management, we can use its query function ...

1. Channel 1.1 what is Channel Channel is similar to Stream. It is a two-way channel for reading and writing data.You can read data from the channel into the buffer or write data from the buffer into the channel. (channel only deals with buffer)The previous stream is either input or output, and channel is lower than stream. 1.2 common channel ...