std::barrier<CompletionFunction>::arrive
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std::barrier
Member functions
barrier::arrive
Constants
arrival_token arrive( std::ptrdiff_t n = 1 );
(since C++20)
Constructs an arrival_token
object associated with the phase synchronization point for the current phase. Then, decrements the expected count by n.
This function executes atomically. The call to this function strongly happens-before the start of the phase completion step for the current phase.
The behavior is undefined if n is less than or equal to 0 or greater than the expected count for the current barrier phase.
[edit] Parameters
n
-
the value by which the expected count is decreased
[edit] Return value
The constructed arrival_token
object.
[edit] Exceptions
Throws std::system_error with an error code allowed for mutex types on error.
[edit] Notes
This function can cause the completion step for the current phase to start.
[edit] Example
This section is incomplete
Reason: no example
Reason: no example