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std::counti...quire_until(3) C++ Standard Libary std::counti...quire_until(3) NAME std::counting_semaphore::try_acquire_until - std::counting_sema- phore::try_acquire_until Synopsis template<class Clock, class Duration> bool try_acquire_until( const std::chrono::time_point<Clock, (since C++20) Duration>& abs_time ); Tries to atomically decrement the internal counter by 1 if it is greater than 0; otherwise blocks until it is greater than 0 and can successfully decrement the internal counter, or the abs_time time point has been passed. The programs is ill-formed if std::chrono::is_clock_v<Clock> is false. Preconditions Clock meets the Clock requirements. Parameters abs_time - the earliest time the function must wait until in order to fail Return value true if it decremented the internal counter, otherwise false Exceptions May throw std::system_error or a timeout-related exception. Notes In practice the function may take longer than abs_time to fail. Implementations are allowed to fail to decrement the counter even if it was greater than 0 - i.e., they are allowed to spuriously fail and return false. http://cppreference.com 2022.07.31 std::counti...quire_until(3)
NAME | Synopsis | Preconditions | Parameters | Return value | Exceptions | Notes
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