C++ Multi Threading Part 4: Why You Should Use std::jthread in Modern C++

Learn why std::jthread is one of the most important additions to C++20's multithreading toolbox. In this video, we walk through its automatic join behavior, built-in cancellation via stop_token, and how it compares to std::thread. If you've ever dealt with std::terminate() from an unjoined thread or struggled with safe shutdown, this video is for you.

🔹 Auto-join: std::jthread safely joins in its destructor
🔹 Stop token: Built-in cooperative cancellation mechanism
🔹 No more polling hacks: Replaces fragile loops and futures
🔹 RAII safety: Clean thread lifecycle management
🔹 Real examples: Exception-safe shutdown, parallel sum, consumer/producer with cancellation

We’ll also cover:

Common pitfalls when using std::jthread

Comparison to std::thread, std::atomic, and condition_variable

How stop_callback can cleanly wake waiting threads

Perfect for C++ developers upgrading to modern, structured concurrency with C++20.

📌 Full code examples included.
📘 Requires C++20 or newer.
🔔 Subscribe for more clean, modern C++ explanations.

You can download and code with me using this link:
https://github.com/ourarash/multithre...

You can run the code either using Bazel or gcc/g++.

This is my fourth video on C++ Multithreading.
Link to Part 1:    • Learn C++ Multi Threading in 20 Minutes  
Link to Part 2:    • C++ Multi Threading Part 2: Mutex And Cond...  
Link to Part 3:    • C++ Multi Threading Part 3: Atomic Variabl...  

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