5 Simple Techniques For sleep
The actions of a plan is undefined if a mutex is wrecked though still owned by any threads, or possibly a thread terminates when possessing a mutex. The mutex class satisfies all requirements of Mutex and StandardLayoutType.
A ailment variable is usually a synchronization primitive which allows several threads to talk to one another.
a get in touch with to some waiting around function on an asynchronous return item that shares the shared state established by this std::async phone blocks till the involved thread has accomplished, as if joined, or else day trip; and
These elements are presented for high-quality-grained atomic functions making it possible for for lockless concurrent programming. Each and every atomic Procedure is indivisible with regards to some other atomic Procedure that entails precisely the same object. Atomic objects are absolutely free of knowledge races.
Provides a hint on the implementation to reschedule the execution of threads, letting other threads to operate.
The highest-degree function may possibly converse its return value or an exception for the caller via std::promise or by modifying shared variables (which may have to have synchronization, see std::mutex and std::atomic).
The normal suggests the clock tied to abs_time be accustomed to evaluate time; that clock will not be needed to be described as a monotonic clock. There isn't any ensures concerning the habits of the operate In case the clock is modified discontinuously, but the present implementations change How sleep cycle works abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so the wait around honors changes on the technique clock, although not on the consumer-presented Clock.
Even though notified less than lock, overload (one) would make no assures with regards to the point out on the linked predicate when returning as a consequence 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 class thread signifies a single thread of execution. Threads make it possible for numerous capabilities to execute concurrently.
std::launch::deferred.
A calling thread owns a mutex with the time that it effectively calls possibly lock or try_lock until it calls unlock.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
The result or exception is positioned while in the shared condition connected to the returned std::foreseeable future and only then it's designed ready. All additional accesses to the identical std::potential will return The end result right away.