std:: atomic_notify_one
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Defined in header
<atomic>
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template
<
class
T
>
void atomic_notify_one ( std:: atomic < T > * object ) ; |
(1) | (since C++20) |
template
<
class
T
>
void atomic_notify_one ( volatile std:: atomic < T > * object ) ; |
(2) | (since C++20) |
Performs atomic notifying operations.
If there is a thread blocked in atomic waiting operation (i.e. std::atomic_wait() , std::atomic_wait_explicit() , or std::atomic::wait() ) on * object , then unblocks at least one such thread; otherwise does nothing.
Equivalent to object - > notify_one ( ) .
Parameters
object | - | pointer to the atomic object to notify |
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
(C++20)
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notifies at least one thread waiting on the atomic object
(public member function of
std::atomic<T>
)
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(C++20)
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notifies all threads blocked waiting on the atomic object
(public member function of
std::atomic<T>
)
|
(C++20)
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notifies all threads blocked in atomic_wait
(function template) |
(C++20)
(C++20)
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blocks the thread until notified and the atomic value changes
(function template) |