std::latch::arrive_and_wait
From cppreference.com
C++
Concurrency support library
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std::latch
Member functions | ||||
latch::arrive_and_wait | ||||
Constants | ||||
void arrive_and_wait(
std::ptrdiff_t n =
1
)
;
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(since C++20) | |
Atomically decrements the internal counter by n and (if necessary) blocks the calling thread until the counter reaches zero. Equivalent to count_down(n); wait();
If n is greater than the value of the internal counter or is negative, the behavior is undefined.
Parameters
n | - | the value by which the internal counter is decreased |
Return value
(none)
Exceptions
Throws std::system_error with an error code allowed for mutex types on error.