The Single Best Strategy To Use For sleep

The habits of a method is undefined if a mutex is destroyed even though nonetheless owned by any threads, or a thread terminates while proudly owning a mutex. The mutex course satisfies all needs of Mutex and StandardLayoutType.

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

If policy is std::start::async

remaining - pointer to the item to put the remaining time on interruption. Could possibly be NULL, by which scenario it is overlooked

Even when the shared variable is atomic, it have to be modified though owning the mutex to correctly publish the modification on the ready thread.

The top-degree operate may well connect its return value or an exception for the caller by means of std::assure or by modifying shared variables (which can need synchronization, see std::mutex and std::atomic).

Whether or not the clock in use is std::chrono::steady_clock or A different monotonic clock, a process clock adjustment may perhaps induce a spurious wakeup.

Consistent Clarification future_status::deferred The shared condition is made up of a deferred How sleep cycle works operate employing lazy analysis, so the result is going to be computed only when explicitly requested future_status::Prepared The result is ready future_status::timeout The timeout has expired [edit] Exceptions

This overload can be utilised to ignore spurious awakenings whilst waiting for a selected issue to become true.

This purpose might block for for a longer period than sleep_duration on account of scheduling or source competition delays.

length and remaining may point at the same object, which simplifies re-functioning the operate after a sign.

A semaphore is a lightweight synchronization primitive accustomed to constrain concurrent use of a shared useful resource. When either would suffice, a semaphore is often more productive than the usual situation variable. Outlined in header

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

This overload may be utilised to disregard spurious awakenings while looking forward to a particular condition to be legitimate.

Threads commence execution quickly on design of the related thread object (pending any OS scheduling delays), commencing at the highest-stage functionality provided as a constructor argument. The return value of the very best-degree purpose is overlooked and when it terminates by throwing an exception, std::terminate known as.