sleep No Further a Mystery
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
This overload could possibly be utilized to disregard spurious awakenings when waiting for a certain situation to be real.
The highest-level purpose might connect its return value or an exception towards the caller by way of std::promise or by modifying shared variables (which can need synchronization, see std::mutex and std::atomic).
three) Registers *this for the period of this phone, to generally be notified if a cease ask for is made on stoken's connected halt-state; it really is then such as
The decision to std::async synchronizes with the call to file, as well as completion of f is sequenced before making the shared condition All set.
The conventional endorses which the clock tied to abs_time be utilized to evaluate time; that clock is not required to be a monotonic clock. There are no guarantees regarding the behavior of this perform When the clock is adjusted discontinuously, but the present implementations convert abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so that the wait honors adjustments towards the system clock, but not to the user-provided Clock.
The normal suggests that a steady clock is used to measure the length. If an implementation employs a technique clock as an alternative, the wait around time might also be sensitive to clock adjustments.
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
If the long run is the results of a get in touch with to std::async that made use of lazy evaluation, this functionality returns How to get better sleep quickly without waiting around.
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
This permits the function to check if cease has actually been asked for throughout its execution, and return if it's.
In case the std::upcoming obtained from std::async isn't moved from or certain to a reference, the destructor with the std::upcoming will block at the end of the total expression right up until the asynchronous Procedure completes, effectively making code like the next synchronous: