Not known Factual Statements About sleep
Not known Factual Statements About sleep
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The habits of a software is undefined if a mutex is wrecked although still owned by any threads, or perhaps a thread terminates while proudly owning a mutex. The mutex course satisfies all demands of Mutex and StandardLayoutType.
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The sleep may resume previously if a sign that is not overlooked is gained. In this kind of situation, if remaining is just not NULL, the remaining time duration is stored into the object pointed to by remaining.
These elements are delivered for great-grained atomic operations permitting for lockless concurrent programming. Each individual atomic operation is indivisible with regards to some other atomic Procedure that consists of exactly the same object. Atomic objects are totally free of information races.
Provides a hint on the implementation to reschedule the execution of threads, allowing other threads to run.
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The actual sleep time can be lengthier than requested mainly because it is rounded up into the timer granularity and because of scheduling and context switching overhead.
Even if notified beneath lock, overload (one) helps make no assures in regards to the point out with the connected predicate when returning because of timeout.
This overload Tips to improve your sleep routine might be utilized to ignore spurious awakenings while waiting for a selected condition to be genuine.
The implementation could increase the behavior of the 1st overload of std::async by enabling extra (implementation-described) bits inside the default launch coverage.
If the future is the results of a contact to std::async that utilised lazy analysis, this perform returns straight away with out waiting around.
std::launch::deferred.
Blocks the execution of the present thread for a minimum of right until the TIME_UTC centered period pointed to by duration has elapsed.
Threads start out execution straight away on design of your involved thread item (pending any OS scheduling delays), setting up at the best-amount purpose furnished for a constructor argument. The return price of the highest-stage operate is dismissed and if it terminates by throwing an exception, std::terminate is known as.
The end result or exception is positioned inside the shared state affiliated with the returned std::long run and only then it really is produced Completely ready. All even more accesses to the identical std::future will return The end result right away.