< cpp‎ | thread‎ | recursive mutex
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void unlock();
(since C++11)

Unlocks the mutex if its level of ownership is 1 (there was exactly one more call to lock() than there were calls to unlock() made by this thread), reduces the level of ownership by 1 otherwise.

The mutex must be locked by the current thread of execution, otherwise, the behavior is undefined.

This operation synchronizes-with (as defined in std::memory_order) any subsequent lock operation that obtains ownership of the same mutex.


[edit] Parameters


[edit] Return value


[edit] Exceptions


[edit] Notes

unlock() is usually not called directly: std::unique_lock and std::lock_guard are used to manage exclusive locking.

[edit] Example

[edit] See also

locks the mutex, blocks if the mutex is not available
(public member function) [edit]
tries to lock the mutex, returns if the mutex is not available
(public member function) [edit]