Types of Locks: std::unique_lock
Learn how std unique_lock enhances mutex management in C++ concurrency by allowing flexible locking strategies, deferred locking, and safe resource handling. Understand its key methods and how to use it with std lock to prevent deadlocks effectively.
We'll cover the following...
We'll cover the following...
Features
In addition to what’s offered by a std::lock_guard, a std::unique_lock enables you to
- create it without an associated mutex.
- create it without locking the associated mutex.
- explicitly and repeatedly set or release the lock of the associated mutex.
- move the mutex.
- try to lock the mutex.
- delay the lock on the associated mutex.
Methods
The following table shows the methods of a std::unique_lock lk.
| Method | Description |
|---|---|
lk.lock() |
Locks the associated mutex. |
std::lock(lk1, lk2, ... ) |
Locks atomically the arbitrary number of associated mutexes. |
lk.try_lock() and lk.try_lock_for(relTime) and |