std::mutex lock_guard and unique_lock
Protect shared state with mutexes and RAII lock helpers.
Why Mutex?
Multiple threads accessing the same data race for it. A mutex guarantees mutual exclusion: only one thread holds the lock at a time.
std::mutex Basics
Construct, lock, unlock. Manual locking is error prone — always use RAII helpers.
#include <mutex>
std::mutex mtx;
mtx.lock();
// critical section
mtx.unlock();All lessons in this course
- std::thread Joining and Detaching
- std::mutex lock_guard and unique_lock
- Condition Variables and Worker Patterns
- std::async and std::future Basics