In embedded systems, network programming, or real-time data stream processing, we often need a fixed-capacity queue structure that supports overwrite. A typical representative of this structure is the Circular Buffer. This article will guide you through implementing a modern C++ style circular buffer from scratch, supporting: ✅ Compile-time fixed capacity✅ Automatic overwrite of the oldest … Read more
1. What is variable scope? The variable scope determines the visibility and lifetime of a variable. In embedded systems, a correct understanding of scope directly relates to memory usage efficiency and system stability. Code Example: // Global variable – visible throughout the program's lifetime int global_var = 0; void func() { // Local variable – … Read more
Follow our official account to keep the embedded knowledge flowing! 1. Can you explain variable scope? The variable scope determines the visibility and lifetime of a variable. In embedded systems, understanding scope correctly directly relates to memory usage efficiency and system stability. Code Example: // Global variable – visible throughout the program's lifecycle int global_var … Read more
Overview A high-throughput, low-latency logging system relies on two key aspects: deferring synchronous write delays to the background (asynchronous) and minimizing memory copies (zero-copy). This article provides engineering-level implementation ideas, reusable code snippets, and performance comparisons, suitable for direct adaptation in production systems. In Short • Decouple log collection (format) from disk writing: the main … Read more
The commonly used C language tool codes in embedded development are indeed very important. Below are some sword-level C language tool code examples, along with brief explanations. 1. Circular Buffer: typedef struct { int buffer[SIZE]; int head; int tail; int count; } CircularBuffer; void push(CircularBuffer *cb, int data) { if (cb->count < SIZE) { cb->buffer[cb->head] … Read more
Click the blue “Most Programmer” to follow me! Add a “Star“, every day at 18:03, let’s learn technology together! In the process of embedded software development, to improve work efficiency and avoid wasting time on reinventing the wheel, we often reuse some C language code snippets. Here are some sword-level C language tool code examples, … Read more
01Introduction The Ring Buffer (also known as Circular Buffer) is a data structure used to efficiently store and manage data within a fixed-size array. It is particularly suitable for scenarios that require continuous reading and writing of data, such as audio processing, network communication, and real-time data stream processing. Below are the basic concepts, implementation … Read more
In the field of C language network programming, the read-write buffer plays a crucial role. It acts as a “transfer station” for data flow, efficiently handling data read and write operations in network communication, optimizing program performance, and enhancing the stability of data transmission. Today, we will delve into how to implement your own read-write … Read more
In the field of C language network programming, the read/write buffer plays a crucial role. It acts as a temporary “dock” for data during the network transmission process, efficiently managing data reading and writing, greatly enhancing the performance and stability of the program. Why a Read/Write Buffer is Needed In network communication, data transmission is … Read more
The Concept of Queue Before we start, let’s review the basic concept of a queue: Queue: A linear structure that follows the First In First Out (FIFO) principle, allowing insertion at one end (enqueue) and deletion at the other end (dequeue). Characteristics of a Queue Similar to a ticket queue, the first person to arrive … Read more