What Does sleep Mean?
What Does sleep Mean?
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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 utilised to ignore spurious awakenings though looking ahead to a selected affliction to be real.
These factors are presented for good-grained atomic functions letting for lockless concurrent programming. Each and every atomic operation is indivisible with regards to almost every other atomic operation that involves the exact same object. Atomic objects are free of knowledge races.
Although the shared variable is atomic, it should be modified although possessing the mutex to properly publish the modification to your ready thread.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
Whether or not the clock in use is std::chrono::steady_clock or One more monotonic clock, a method clock adjustment may induce a spurious wakeup.
The typical recommends that a gentle clock is accustomed to evaluate the length. If an implementation takes advantage of a program clock instead, the wait around time may also be delicate to clock adjustments.
It lets some range of threads to wait (probably using a timeout) for notification from A different thread which they may perhaps proceed. A situation variable is usually linked to a mutex. Outlined in header
This purpose may well block for extended than sleep_duration as a consequence of scheduling or resource rivalry delays.
If the long run is the result of a connect with to std::async that applied lazy evaluation, this purpose returns instantly without having waiting.
The conventional suggests that a steady clock is accustomed to measure the duration. If an implementation utilizes a program clock alternatively, the wait around time may additionally be delicate to clock adjustments.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
This allows the function to examine if halt has actually been requested in the course of its execution, and return if it has.
Threads begin execution promptly upon design in the associated thread item (pending any OS scheduling delays), beginning at How to get better sleep the best-degree functionality presented as a constructor argument. The return worth of the top-stage function is overlooked and when it terminates by throwing an exception, std::terminate is named.