The Greatest Guide To sleep

The returned value of overload (three) indicates regardless of whether pred evaluated to accurate, irrespective of whether there was a prevent asked for or not.

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

The sleep may perhaps resume earlier if a sign that isn't disregarded is gained. In this kind of scenario, if remaining just isn't NULL, the remaining time period is stored into the article pointed to by remaining.

The standard suggests that the clock tied to sleep_time be made use of, through which case changes from the clock can be taken into account. Consequently, the duration on the block may be roughly than sleep_time - Clock::now() at the time of the call, depending on the course of the adjustment and whether it is honored through the implementation.

Provides a hint on the implementation to reschedule the execution of threads, making it possible for other threads to operate.

Waits for The end result to be out there. Blocks till specified timeout_duration has elapsed or the result will become accessible, whichever comes very first. The return price identifies the state of the result.

The normal suggests the clock tied to abs_time be accustomed to measure time; that clock just isn't necessary to become a monotonic clock. There won't be any ensures concerning the habits of the purpose If your 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 the wait around honors changes on the technique clock, although not to your consumer-presented Clock.

The standard recommends that a steady clock is used to measure the duration. If an implementation uses a system clock in its place, the hold out time may be sensitive to clock adjustments.

The operate also might block right until immediately after sleep_time is arrived at resulting from method scheduling or resource competition delays.

Latches and limitations are thread coordination mechanisms that enable any number of threads to dam until finally an expected amount of threads get there. A latch can't be reused, when a barrier may be used consistently. Outlined in header

The category thread signifies an individual thread of execution. Threads enable several functions to execute concurrently.

A period consists of a span of your time, defined as some amount of ticks of some time unit. For example, "forty two seconds" can be represented by a period consisting of forty two ticks of a 1-second time unit. Outlined in header Described in namespace std::chrono

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.

This enables the perform to examine if halt has been requested for the duration of its execution, and return if it's got.

Should the std::long term acquired from std::async isn't moved from or certain to a reference, the destructor on the std::upcoming will block at the end of the full expression right How sleep cycle works up until the asynchronous operation completes, basically generating code for instance the subsequent synchronous: