The Basic Principles Of sleep

The Basic Principles Of sleep

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The behavior of the method is undefined if a mutex is wrecked although even now owned by any threads, or even a thread terminates whilst owning a mutex. The mutex course satisfies all necessities of Mutex and StandardLayoutType.

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

The sleep may possibly resume before if a sign that's not disregarded is received. In this sort of scenario, if remaining is just not NULL, the remaining time length is stored into the object pointed to by remaining.

remaining - pointer to the item To place the remaining time on interruption. May very well be NULL, wherein circumstance it is dismissed

Mutual exclusion algorithms prevent several threads from at the same time accessing shared resources. This stops facts races and provides assist for synchronization involving threads. Defined in header

Waits for The end result to be accessible. Blocks right up until specified timeout_duration has elapsed or The end result becomes obtainable, whichever arrives initially. The return value identifies the state of the result.

Whether or not the clock in use is std::chrono::steady_clock or One more monotonic clock, a process clock adjustment may perhaps induce a spurious wakeup.

Continual Clarification future_status::deferred The shared state consists of a deferred perform utilizing lazy evaluation, so the result will probably be computed only when explicitly requested future_status::ready The result is ready future_status::timeout The Stages of sleep timeout has expired [edit] Exceptions

This overload might be made use of to disregard spurious awakenings whilst looking ahead to a certain problem to be genuine.

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit

If the long run is the result of a simply call to std::async that utilized lazy analysis, this operate returns immediately with no waiting.

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

This allows the perform to check if halt has long been requested in the course of its execution, and return if it's got.

If the std::long term received from std::async will not be moved from or bound to a reference, the destructor from the std::foreseeable future will block at the conclusion of the entire expression until the asynchronous operation completes, primarily building code which include the following synchronous: