The smart Trick of sleep That No One is Discussing
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
If plan is std::start::async
These parts are presented for fantastic-grained atomic operations allowing for for lockless concurrent programming. Just about every atomic operation is indivisible with regards to every other atomic Procedure that consists of precisely the same object. Atomic objects are absolutely free of information races.
Mutual exclusion algorithms prevent many threads from at the same time accessing shared resources. This prevents info races and delivers support for synchronization in between threads. Outlined in header
The highest-amount function could converse its return benefit or an exception to the caller by using std::assure or by modifying shared variables (which can involve synchronization, see std::mutex and std::atomic).
Although the clock in use is std::chrono::steady_clock or A further monotonic clock, a system clock adjustment might induce a spurious wakeup.
Regardless of whether notified underneath lock, overload (one) can make no ensures in regards to the condition in the connected predicate when returning as a result of timeout.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
This perform may block for extended than sleep_duration as a result of scheduling or resource competition delays.
If the longer term is the result of a simply call to std::async that utilized lazy analysis, this perform returns straight away without having ready.
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 permits the function to check if end has long been requested throughout its execution, and return if it's.
If your std::upcoming obtained from std::async just isn't moved from or certain to a reference, the destructor with the std::future will block at the end of the total expression right up until the asynchronous Procedure completes, effectively Stages of sleep making code including the next synchronous: