std::counting_semaphore<LeastMaxValue>::try_acquire
bool try_acquire() noexcept; |
(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.
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/thread/counting_semaphore/try_acquire
