24_Observer - Decoupling state synchronization in C++

[MarioGalindoQ]

Overview

The Observer Pattern is a classic way to implement a one-to-many dependency. In this repository, I've implemented a thread-safe version where subjects can notify multiple observers of state changes.

Discussion points

I’m curious about your approach to these common challenges:

1. Dangling Pointers: When an Observer is destroyed, the Subject must stop sending notifications. In my code, I use a specific detach method. Have you tried using std::weak_ptr to handle this automatically?
2. Performance vs. Flexibility: Is a generic notify() method enough, or do you prefer passing specific "Event" objects to the observers?

How do you manage the lifecycle of your observers? Let's discuss! ⚙️