Memory Model
Explore the essential concepts of the C++ memory model to deepen your understanding of multithreading challenges. Learn why volatile is not used for synchronization in C++, the risks and proper patterns for lock-free programming, and how to rely on language guarantees for thread-safe initialization. This lesson helps you apply best practices to write safer and more efficient concurrent code.
The foundation of multithreading is a well-defined memory model. Having a basic understanding of the memory helps a lot to get a deeper insight into the multithreading challenges.
Don’t use Volatile for Synchronization
In C++, in contrast to C# or Java, volatile has no multithreading semantic . In C# or Java, volatile declares an atomic such as std::atomic declares an atomic in C++, and ...