The Fact About sleep That No One Is Suggesting
The Fact About sleep That No One Is Suggesting
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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
std::start::deferred or has added bits set, it'll drop back to deferred invocation or the implementation-described procedures In cases like this.
remaining - pointer to the thing To place the remaining time on interruption. Can be NULL, during which case it is disregarded
Regardless of whether the shared variable is atomic, it must be modified even though proudly owning the mutex to correctly publish the modification on the ready thread.
The highest-amount function could converse its return benefit or an exception towards the caller through std::guarantee or by modifying shared variables (which can require synchronization, see std::mutex and std::atomic).
The common suggests which the clock tied to abs_time be utilized to evaluate time; that clock is not really required to be considered a monotonic clock. There aren't any guarantees regarding the conduct of this perform In the event the clock is modified discontinuously, but the present implementations change abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so the wait Stages of sleep around honors adjustments to your procedure clock, although not into the person-delivered Clock.
Even when notified below lock, overload (1) makes no guarantees concerning the state of the related predicate when returning because 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
If the future is the results of a call to std::async that made use of lazy evaluation, this purpose returns right away without the need of waiting around.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
A contacting thread owns a mutex from the time that it efficiently calls either lock or try_lock until finally it phone calls unlock.
This permits the operate to examine if prevent continues to be requested for the duration of its execution, and return if it's got.
std::condition_variable is really a synchronization primitive employed by using a std::mutex to dam a number of threads until eventually A further thread both of those modifies a shared variable (the situation) and notifies the std::condition_variable.