Following the previous section, when we use global variables to implement synchronization and mutual exclusion, it is as follows:When the if condition is met, the task switches, and printf may not print completely, so we need to introduce a queue.First, let’s look at a few definitions. Queue (First In First Out) Understanding a queue is … Read more
In embedded system development, semaphores are an important synchronization mechanism used to coordinate resource access among multiple tasks or threads. Through semaphores, developers can ensure the safe use of shared resources, avoiding issues such as race conditions and deadlocks. Today, we will discuss in detail the common types of semaphores in embedded operating systems and … Read more
Implementing Peterson’s Algorithm for Mutual Exclusion in C Language After studying the section on process mutual exclusion, I thought I would try to implement it using user-level multithreading in C, which led to this article. Complete Code Peterson’s algorithm combines the single flag method and the double flag method to achieve true mutual exclusion for … Read more
Thread Synchronization and Mutual Exclusion in C++ In modern programming, especially in multithreaded programming, thread synchronization and mutual exclusion are essential tools to ensure that multiple threads can safely and effectively access shared resources. In C++, we can use various mechanisms from the standard library to achieve this goal. This article will provide a detailed … Read more
1. The Concepts of Synchronization and Mutual Exclusion To understand synchronization and mutual exclusion in one sentence: I wait for you to finish using the bathroom before I use it. What is synchronization? It is: Hey, I am using the bathroom, please wait. What is mutual exclusion? It is: Hey, I am using the bathroom, … Read more