sleep Fundamentals Explained
sleep Fundamentals Explained
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The actions of the software is undefined if a mutex is wrecked whilst nonetheless owned by any threads, or a thread terminates when 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
The sleep may perhaps resume before if a signal that isn't ignored is acquired. In this kind of scenario, if remaining isn't NULL, the remaining time length is saved into the article pointed to by remaining.
The typical suggests that the clock tied to sleep_time be made use of, where situation changes on the clock may be taken under consideration. Consequently, the period on the block could be kind of than sleep_time - Clock::now() at some time of the decision, with regards to the path from the adjustment and whether it is honored via the implementation.
A time issue is actually a duration of your time that has handed Because the epoch of a selected clock. Outlined in header Described in namespace std::chrono
Waits for The end result to become readily available. Blocks till specified timeout_duration has elapsed or The end result gets to be offered, whichever comes 1st. The return price identifies the point out of the result.
The normal suggests the clock tied to abs_time be accustomed to evaluate time; that clock will not be needed to be a monotonic clock. There are no guarantees regarding the behavior of this perform When the clock is adjusted discontinuously, but the existing implementations convert abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so that the wait honors adjustments into the procedure clock, although not into the person-provided Clock.
The regular recommends that a gentle clock is accustomed to measure the duration. If an implementation uses a system clock in its place, the wait around time can also Tips to improve your sleep routine be sensitive to clock changes.
The perform also may well block till immediately after sleep_time continues to be arrived at as a result of system scheduling or resource rivalry delays.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
If the longer term is the results of a connect with to std::async that made use of lazy analysis, this functionality returns immediately without waiting.
A semaphore is a light-weight synchronization primitive used to constrain concurrent usage of a shared useful resource. When both would suffice, a semaphore can be extra successful than a ailment variable. Outlined 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
The result or exception is placed while in the shared point out associated with the returned std::potential and only then it can be built ready. All additional accesses to precisely the same std::long run will return The end result immediately.