What Does sleep Mean?
What Does sleep Mean?
Blog Article
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
A situation variable is actually a synchronization primitive that permits a number of threads to talk to one another.
The sleep may resume before if a sign that is not ignored is been given. In these scenario, if remaining is just not NULL, the remaining time duration is saved into the item pointed to by remaining.
remaining - pointer to the object to put the remaining time on interruption. Could be NULL, during which situation it really is dismissed
Mutual exclusion algorithms stop numerous threads from at the same time accessing shared methods. This stops info races and delivers assistance for synchronization amongst threads. Described in header
Waits for The end result to become offered. Blocks right until specified timeout_duration has elapsed or the result turns into readily available, whichever comes very first. The return price identifies the state of the result.
The common suggests the clock tied to abs_time be accustomed to measure time; that clock isn't required to be considered a monotonic clock. There are no guarantees concerning the habits of the operate In the event the clock is adjusted discontinuously, but the existing implementations transform abs_time from Clock to std::chrono::system_clock and delegate to POSIX pthread_cond_timedwait so which the wait around honors adjustments towards the system clock, but not into the person-presented Clock.
Whether or not notified below lock, overload (1) will make no ensures in regards to the condition of the involved predicate when returning resulting from timeout.
atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit
This functionality may block for lengthier than timeout_duration as a result of scheduling or useful resource rivalry delays.
Observe which the destructors of std::futures attained by usually means in addition to a call to std::async never block. [edit] Example
A duration is made of a span of your time, outlined as some range of ticks of a while unit. As an example, "42 How to get better sleep seconds" can be represented by a period consisting of 42 ticks of a one-next time unit. Defined in header Described in namespace std::chrono
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
In case the std::upcoming obtained from std::async is just not moved from or sure to a reference, the destructor from the std::foreseeable future will block at the conclusion of the entire expression till the asynchronous operation completes, fundamentally making code including the next synchronous: