template<class Clock, class Duration> bool try_acquire_until( const std::chrono::time_point<Clock, Duration>& abs_time ); | (since C++20) |
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.
Clock meets the Clock requirements.
| abs_time | - | the earliest time the function must wait until in order to fail |
true if it decremented the internal counter, otherwise false.
May throw std::system_error or a timeout-related exception.
In practice the function may take longer than abs_time to fail.
| increments the internal counter and unblocks acquirers (public member function) |
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| decrements the internal counter or blocks until it can (public member function) |
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| tries to decrement the internal counter without blocking (public member function) |
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| tries to decrement the internal counter, blocking for up to a duration time (public member function) |
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