Everything about sleep
Everything about 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 be employed to ignore spurious awakenings whilst awaiting a specific condition to become legitimate.
The very best-amount operate may perhaps talk its return value or an exception on the caller via std::guarantee or by modifying shared variables (which may call for synchronization, see std::mutex and std::atomic).
Although the shared variable is atomic, it must be modified though owning the mutex to correctly publish the modification on the waiting thread.
The decision to std::async synchronizes with the decision to file, and the completion of f is sequenced before you make the shared state ready.
Regardless of whether the clock in use is std::chrono::steady_clock or A further monotonic clock, a system clock adjustment may induce a spurious wakeup.
Constant Clarification future_status::deferred The shared condition includes a deferred operate making use of lazy evaluation, so the result will probably be computed only when explicitly requested future_status::ready The result is ready future_status::timeout The timeout has expired [edit] Exceptions
This overload could possibly be employed to ignore spurious awakenings while looking ahead to a certain problem to become legitimate.
This functionality may perhaps block for more time than sleep_duration because of scheduling or useful resource competition delays.
duration and remaining may well place at the identical item, which simplifies re-working the functionality after a sign.
std::start::deferred.
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
std::condition_variable is often a synchronization primitive Stages of sleep applied which has a std::mutex to dam a number of threads until another thread each modifies a shared variable (the situation) and notifies the std::condition_variable.