NAME¶

std::atomic::notify_one - std::atomic::notify_one

Synopsis¶

void notify_one() noexcept; (1) (since C++20)
void notify_one() volatile noexcept; (2) (since C++20)

Performs atomic notifying operations.

If there is a thread blocked in atomic waiting operation (i.e. wait()) on *this,
then unblocks at least one such thread; otherwise does nothing.

Return value¶

(none)

Notes¶

This form of change-detection is often more efficient than simple polling or pure
spinlocks.

Example¶

This section is incomplete
Reason: no example

See also¶

wait blocks the thread until notified and the atomic value changes
(C++20) (public member function)
atomic_wait
atomic_wait_explicit blocks the thread until notified and the atomic value changes
(C++20) (function template)
(C++20)
atomic_notify_one notifies a thread blocked in atomic_wait
(C++20) (function template)

Category:¶

* Todo no example