The Single Best Strategy To Use For sleep
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
Offers a touch to your implementation to reschedule the execution of threads, making it possible for other threads to run.
the involved thread completion synchronizes-Along with the productive return from the primary operate which is waiting to the shared condition, or with the return of the final perform that releases the shared state, whichever arrives initial.
The typical suggests that the clock tied to sleep_time be used, wherein scenario adjustments of your clock can be taken into consideration. Therefore, the period on the block could be kind of than sleep_time - Clock::now() at enough time of the call, depending on the course in the adjustment and whether it's honored because of the implementation.
3) Registers *this for your length of this contact, to become notified if a halt request is built on stoken's connected halt-condition; it truly is then equivalent to
The call to std::async synchronizes with the call to f, along with the completion of file is sequenced before you make the shared state Prepared.
The common suggests the clock tied to abs_time be accustomed to measure time; that clock is just not necessary to become a monotonic clock. There won't be any ensures concerning the conduct of this operate In the event the clock is modified discontinuously, but the present implementations convert abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so that the wait honors adjustments to the system clock, although not into the person-furnished Clock.
The normal recommends that a steady clock is utilized to evaluate the length. If an implementation utilizes a technique clock as an alternative, the wait time may also be delicate to clock changes.
The function also may perhaps block until eventually right after sleep_time continues to be arrived at resulting from approach scheduling or resource rivalry delays.
Latches and obstacles are thread coordination mechanisms that allow for any amount of threads to block until an envisioned quantity of threads get there. A latch can't be reused, while a barrier can be employed continuously. Described in header
The category thread represents only one thread of execution. Threads enable various features to execute concurrently.
A period is made up of a span of your time, outlined as some range of ticks of some time device. For instance, "forty two seconds" might be represented by a period consisting of 42 ticks of the one-2nd time device. Defined in header Outlined in namespace std::chrono
Blocks the execution of the present thread for a minimum of till the TIME_UTC based mostly period pointed to by duration has elapsed.
This overload can be used to ignore spurious awakenings when waiting for a particular issue to be accurate.
The end result or exception is put during the shared state related to How to get better sleep the returned std::potential and only then it really is manufactured All set. All even further accesses to a similar std::future will return the result immediately.