An Unbiased View of sleep
An Unbiased View of sleep
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The habits of a system is undefined if a mutex is destroyed while continue to owned by any threads, or simply a thread terminates though proudly owning a mutex. The mutex course satisfies all necessities of Mutex and StandardLayoutType.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
The sleep may well resume previously if a signal that's not overlooked is obtained. In these types of scenario, if remaining just isn't NULL, the remaining time duration is saved into the thing pointed to by remaining.
These components are furnished for fantastic-grained atomic operations allowing for for lockless concurrent programming. Every single atomic operation is indivisible with regards to another atomic operation that entails a similar object. Atomic objects are free of knowledge races.
Mutual exclusion algorithms prevent several threads from at the same time accessing shared sources. This stops details races and offers guidance for synchronization between threads. Outlined in header
Waits for the result to become readily How sleep cycle works available. Blocks until specified timeout_duration has elapsed or the result will become available, whichever arrives initially. The return benefit identifies the state of The end result.
Even if the clock in use is std::chrono::steady_clock or An additional monotonic clock, a program clock adjustment could induce a spurious wakeup.
Continuous Explanation future_status::deferred The shared state consists of a deferred perform utilizing lazy evaluation, so the result will be computed only when explicitly requested future_status::ready The end result is prepared future_status::timeout The timeout has expired [edit] Exceptions
This overload may very well be applied to disregard spurious awakenings whilst waiting for a selected condition to be real.
This operate might block for extended than sleep_duration as a result of scheduling or resource rivalry delays.
period and remaining could issue at precisely the same object, which simplifies re-managing the function following a signal.
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
If the function f returns a value or throws an exception, it's stored within the shared state accessible with the std::long term that std::async returns for the caller. [edit] Deferred invocation