sleep Secrets
sleep Secrets
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No synchronization is performed on *this alone. Concurrently contacting be part of() on the exact same thread item from many threads constitutes an information race that leads to undefined conduct.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
std::launch::deferred or has supplemental bits established, it can slide back again to deferred invocation or even the implementation-defined policies In cases like this.
remaining - pointer to the thing To place the remaining time on interruption. Could be NULL, wherein situation it is dismissed
Mutual exclusion algorithms stop a number of threads from at the same time accessing shared resources. This stops facts races and presents assistance for synchronization amongst threads. Described in header
The top-degree operate may well connect its return value or an exception for the caller through std::assure or by modifying shared variables (which can require synchronization, see std::mutex and std::atomic).
Even if the clock in use is std::chrono::steady_clock or An additional monotonic clock, a program clock adjustment could induce a spurious wakeup.
The category jthread signifies one thread of execution. It's got precisely the same basic conduct as Tips to improve your sleep routine std::thread, other than that jthread routinely rejoins on destruction, and will be cancelled/stopped in selected conditions.
The purpose also may possibly block until finally after sleep_time has long been arrived at on account of method scheduling or resource rivalry delays.
This purpose may possibly block for extended than sleep_duration as a result of scheduling or useful resource competition delays.
Note which the destructors of std::futures acquired by usually means aside from a call to std::async in no way block. [edit] Example
A length consists of a span of your time, described as some variety of ticks of a while unit. One example is, "42 seconds" may very well be represented by a duration consisting of forty two ticks of a 1-next time unit. Described in header Defined in namespace std::chrono
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
In case the std::long run attained from std::async isn't moved from or certain to a reference, the destructor of your std::future will block at the end of the complete expression right until the asynchronous Procedure completes, fundamentally making code like the next synchronous: