The Fact About sleep That No One Is Suggesting
The Fact About sleep That No One Is Suggesting
Blog Article
The habits of a software is undefined if a mutex is ruined though still owned by any threads, or perhaps a thread terminates although possessing a mutex. The mutex class satisfies all prerequisites of Mutex and StandardLayoutType.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
std::launch::deferred or has additional bits established, it will eventually tumble back again to deferred invocation or even the implementation-outlined insurance policies In such a case.
The conventional suggests which the clock tied to sleep_time be employed, by which scenario changes in the clock may very well be taken into consideration. So, the length with the block could be kind of than sleep_time - Clock::now() at the time of the decision, based on the course of the adjustment and whether it's honored by the implementation.
Offers a touch towards the implementation to reschedule the execution of threads, making it possible for other threads to operate.
The highest-amount function could converse its return benefit or an exception to your caller through std::guarantee or by modifying shared variables (which can involve synchronization, see std::mutex and std::atomic).
The typical endorses which the clock tied to abs_time be utilized to evaluate time; that clock is not really needed to be a monotonic clock. There are no guarantees regarding the behavior of this function When the clock is adjusted discontinuously, but the prevailing implementations transform abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so which the hold out honors changes into the procedure clock, although not to the person-provided Clock.
The class jthread signifies one thread of execution. It's precisely the same standard conduct as std::thread, besides that jthread immediately rejoins on destruction, and can be cancelled/stopped in certain scenarios.
In almost any situation, the perform also may look ahead to for a longer period than until eventually soon after abs_time is attained due to How to get better sleep scheduling or useful resource rivalry delays.
This perform might block for lengthier than sleep_duration because of scheduling or resource rivalry delays.
If the future is the results of a phone to std::async that utilized lazy analysis, this purpose returns right away with out ready.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
Blocks the execution of the current thread for a minimum of right up until the TIME_UTC based length pointed to by duration has elapsed.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
std::condition_variable is usually a synchronization primitive used using a std::mutex to dam a number of threads right until An additional thread the two modifies a shared variable (the issue) and notifies the std::condition_variable.