As always, let’s get straight to the point without any fluff~epoll is an efficient I/O multiplexing mechanism provided by Linux, designed to replace select and poll, addressing their performance bottlenecks when handling a large number of file descriptors. Compared to traditional select and poll, epoll has significant performance advantages when dealing with a large number … Read more
Learn how to use sockets, buffers, TCP, and the poll() multiplexing technique in C language to develop real network applications: enhance your network programming skills through practical projects and hands-on exercises. You Will Learn How to write a simple TCP client program that can connect to an actively running server Understanding how sockets, file descriptors, … Read more
The resource site is now online, and more resources can be shared. Welcome to visit: https://resources.zainzh.top Resource Introduction Resource Name: Writing a TCP/IP Protocol Stack from Scratch Applicable Platforms: Multi-platform Start from zero lines of code to write a small, highly portable TCP/IP protocol stack, deeply understanding the principles of network protocols and code implementation. … Read more
Linux kernel programming is a skill that most developers have either never encountered or are intimidated by. Just thinking about it can be daunting; what if the kernel crashes? The eBPF technology alleviates concerns about kernel programming, providing an impulse to give it a try. eBPF (extended Berkeley Packet Filter) is a revolutionary technology in … Read more
Welcome to the 【Ultimate Programming】 WeChat public account 【Knowledge Repository】, specially customized for everyone《Qt C++ Architect》 Series – Project Practice Episode 138:This issue will focus on a practical and challenging technical topic –【C++17 and Qt6 Network Programming: Building a High-Performance Server Architecture from TCP Protocol to SQLite3】.Whether you are a beginner who has just mastered … Read more
CO: An Efficient and User-Friendly C++ Foundation Library In the field of C++ development, CO (coost) is a highly regarded cross-platform foundation library. It focuses on performance and ease of use, aiming to make C++ programming simpler, easier, and more efficient. The CO library is feature-rich, covering multiple aspects from command line parsing to network … Read more
Python provides two levels of network services: low-level Socket and high-level SocketServer. These services assist developers in network communication and simplify server-side development. What is a Socket? Socket is an endpoint for communication between applications, primarily used for data exchange over a network. It is an interface provided by the operating system that allows applications … Read more
🎯 Core Functionality Send a string of data to a specified IP and port using the TCP protocol, including a timestamp and CRC check. 1. TCP Client Communication Establish a TCP connection with the specified server Continuously send structured data packets Support automatic reconnection mechanism Regularly send heartbeat packets to keep the connection alive 2. … Read more
Have you encountered such development pain points: the internal network environment cannot access external APIs and needs to be debugged through a proxy? Or do you need to monitor the HTTP request traffic of team applications? Recently, many developers in the .NET technology group have been discussing a common question: “How to quickly implement a … Read more
The network loopback interface (<span><span>lo</span></span>) 1. What is it? <span>lo</span> is a virtual network interface that is automatically created and managed by the operating system kernel. Its IP address is always <span>127.0.0.1</span> (IPv4) and <span>::1</span> (IPv6), which is known as the loopback address localhost. Any IP packets sent to this address range will be directly … Read more