NAME

std::atomic_flag::notify_all - std::atomic_flag::notify_all

Synopsis

void notify_all() noexcept; (since C++20)
void notify_all() volatile noexcept;

Performs atomic notifying operations.

Unblocks all threads blocked in atomic waiting operations (i.e. wait()) on *this, if
there are any; 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
(C++20) changes
(public member function)
atomic_flag_wait
atomic_flag_wait_explicit blocks the thread until notified and the flag changes
(C++20) (function)
(C++20)
atomic_flag_notify_one notifies a thread blocked in atomic_flag_wait
(C++20) (function)