Considerations To Know About sleep

Considerations To Know About sleep

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The returned worth of overload (three) signifies whether pred evaluated to legitimate, regardless of whether there was a prevent requested or not.

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If coverage is std::start::async

remaining - pointer to the object To place the remaining time on interruption. Can be NULL, where scenario it really is dismissed

Mutual exclusion algorithms protect against multiple threads from concurrently accessing shared methods. This helps prevent data races and gives guidance for synchronization between threads. Defined in header

Waits for The end result to be available. Blocks until finally specified timeout_duration has elapsed or The end result results in being available, whichever arrives 1st. The return price identifies the point out of The end result.

Even if the clock in use is std::chrono::steady_clock or Yet another monotonic clock, a technique clock adjustment may well induce a spurious wakeup.

Consistent Explanation future_status::deferred The shared condition consists of a deferred function applying lazy evaluation, 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 made use of to disregard spurious awakenings even though looking forward to a specific ailment to be real.

This purpose could block for longer than sleep_duration resulting from scheduling or resource rivalry delays.

duration and remaining may perhaps level at the same item, which simplifies re-running the purpose after a sign.

A semaphore is a lightweight synchronization primitive accustomed to constrain concurrent access to a shared source. When possibly would suffice, a semaphore can be far more economical than a issue variable. Described in header

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

When the perform f returns a value or throws an exception, it really is Stages of sleep stored while in the shared condition available from the std::long run that std::async returns to your caller. [edit] Deferred invocation