A Secret Weapon For sleep
A Secret Weapon For sleep
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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 even though expecting a particular ailment to be correct.
The normal endorses the clock tied to sleep_time be made use of, through which circumstance adjustments of your clock could be taken under consideration. Hence, the period from the block could possibly be more or less than sleep_time - Clock::now() at enough time of the call, dependant upon the direction from the adjustment and whether it is honored with the implementation.
A time place is a length of your time which includes passed For the reason that epoch of a selected clock. Defined in header Outlined in namespace std::chrono
The highest-stage functionality might talk its return worth or an exception on the caller by using std::promise or by modifying shared variables (which may demand synchronization, see std::mutex and std::atomic).
The conventional endorses the clock tied to abs_time be accustomed to evaluate time; that clock will not be needed to be considered a monotonic clock. There aren't any guarantees regarding the conduct of this operate In case the clock is adjusted discontinuously, but the existing 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 method clock, but not towards the user-supplied Clock.
Even if notified under lock, overload (one) will make no guarantees with regards to the condition on the linked predicate when returning on account of timeout.
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
duration and remaining might stage at the identical object, which simplifies re-working the perform after a signal.
The conventional suggests that a gentle clock is used to evaluate the duration. If an implementation employs a system clock alternatively, the wait time may additionally Stages of sleep be delicate to clock adjustments.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
Threads start off execution immediately upon development of your related thread object (pending any OS scheduling delays), starting off at the top-degree operate furnished as a constructor argument. The return worth of the highest-amount function is dismissed and if it terminates by throwing an exception, std::terminate is referred to as.
std::condition_variable is actually a synchronization primitive employed by using a std::mutex to dam a number of threads until eventually A different thread both of those modifies a shared variable (the ailment) and notifies the std::condition_variable.