C++20 Latches and Barriers: Thread Synchronization in Practice

Writing correct multithreaded applications requires precise control over how threads coordinate their work. With the advent of C++20, developers gained powerful new synchronization primitives—specifically latches and barriers—that simplify thread coordination without the overhead of traditional condition variables. This written course helps you understand and correctly apply these modern concurrency tools to build efficient, race-free applications. You will transition from basic thread-spawning to managing complex, multi-phased concurrent workflows using modern C++ design patterns. What you'll learn: - Understand the core concepts of thread coordination and why traditional synchronization can be error-prone - Configure and use std::latch to coordinate single-use, countdown-based thread synchronization - Master std::barrier to manage reusable, multi-phased thread synchronization cycles - Apply modern C++ thread-safety best practices to avoid common concurrency pitfalls like deadlocks and data races - Implement practical synchronization patterns for high-performance computing and parallel algorithms This course begins with foundational concurrency definitions and the theory of thread coordination before moving into step-by-step written explanations of the C++20 standard library features. You will analyze code snippets, study common implementation patterns, and test your understanding through written exercises. This course is designed for intermediate C++ developers who understand basic threading and want to modernize their skills with modern C++20 concurrency features. No prior experience with latches or barriers is required. Start reading today to write safer, more efficient concurrent code in C++20.