Circular references in singletons are most likely to occur in logging modules and configuration management modules. If a circular reference is triggered during the construction phase, it can be guaranteed by the uniqueness of static variable initialization in C++11. The danger lies in triggering a circular reference during the destruction phase, which can lead … Read more
#cpp #singleton 📌 In-Depth C++ Singleton Pattern: Principles, Implementation Comparisons, and shared_ptr Architecture Design 1️⃣ What is a Singleton? Basic Semantics and Usage Scenarios A Singleton ([[Singleton]]) is one of the most common object creation patterns, aimed at ensuring that a class has only one instance in the system and provides a global access point. … Read more
Introduction: MQTT is an instant messaging protocol developed by IBM. MQTT is a connection protocol aimed at M2M and the Internet of Things, utilizing a lightweight publish and subscribe message transmission mechanism. You can directly download the source code of the MQQT service from GitHub, source code address: https://github.com/mqtt/mqtt.github.io/wiki/libraries Main Content: Official Document Translation: The … Read more
1. Class Reflection After analyzing simple classes and structures, we can further analyze the reflection of ordinary classes. There are generally several situations for reflecting a class: 1. Creating and matching objects by class name 2. Reflecting class member variables 3. Reflecting class member functions 4. Handling class inheritance relationships. Here, we will only deal … Read more
