std::counting_semaphore<LeastMaxValue>::try_acquire_for
From cppreference.com
< cpp | thread | counting semaphore
template< class Rep, class Period > bool try_acquire_for( const std::chrono::duration<Rep, Period>& rel_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 rel_time duration has been exceeded.
Contents |
[edit] Preconditions
(none)
[edit] Parameters
rel_time | - | the minimum duration the function must wait for it to fail |
[edit] Return value
true if it decremented the internal counter, otherwise false.
[edit] Exceptions
May throw std::system_error or a timeout-related exception.
[edit] Notes
In practice the function may take longer than rel_time to fail.
[edit] See also
increments the internal counter and unblocks acquirers (public member function) | |
decrements the internal counter or blocks until it can (public member function) | |
tries to decrement the internal counter without blocking (public member function) | |
tries to decrement the internal counter, blocking until a point in time (public member function) |