The best Side of sleep

The behavior of a plan is undefined if a mutex is destroyed though continue to owned by any threads, or simply a thread terminates when possessing a mutex. The mutex class satisfies all specifications of Mutex and StandardLayoutType.

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

std::launch::deferred or has extra bits established, it can drop back to deferred invocation or maybe the implementation-outlined policies in this case.

The best-level purpose might converse its return value or an exception to your caller by way of std::promise or by modifying shared variables (which may require synchronization, see std::mutex and std::atomic).

Regardless of whether the shared variable is atomic, it must be modified whilst possessing the mutex to properly publish the modification to the waiting thread.

The best-amount function might talk its return price or an exception to your caller by using std::promise or by modifying shared variables (which can need synchronization, see std::mutex and Tips to improve your sleep routine std::atomic).

The normal suggests the clock tied to abs_time be accustomed to measure time; that clock is just not necessary to be described as a monotonic clock. There won't be any guarantees concerning the actions of the functionality Should the clock is altered 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 into the person-delivered Clock.

Regardless of whether notified less than lock, overload (1) helps make no guarantees regarding the state from the related predicate when returning because of timeout.

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 category thread represents an individual thread of execution. Threads allow a number of functions to execute concurrently.

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

Blocks the execution of the current thread for at least until eventually the TIME_UTC based length pointed to by duration has elapsed.

This enables the purpose to examine if quit is asked for all through its execution, and return if it has.

When the std::foreseeable future attained from std::async is not moved from or bound to a reference, the destructor in the std::long run will block at the end of the total expression right up until the asynchronous Procedure completes, essentially creating code including the next synchronous: