std::counting_semaphore<LeastMaxValue>::try_acquire - cppreference.com
From cppreference.com
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(since C++20) | |
Tries to atomically decrement the internal counter by 1 if it is greater than 0; no blocking occurs regardless.
Return value
true if it decremented the internal counter, otherwise false.
Notes
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.
See also
| increments the internal counter and unblocks acquirers (public member function) [edit] | |
| decrements the internal counter or blocks until it can (public member function) [edit] | |
| tries to decrement the internal counter, blocking for up to a duration time (public member function) [edit] | |
| tries to decrement the internal counter, blocking until a point in time (public member function) [edit] |