std::experimental::barrier:: arrive_and_wait
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void
arrive_and_wait
(
)
;
|
(concurrency TS) | |
Blocks and arrive at the barrier's synchronization point.
The behavior is undefined if the calling thread is not in the set of participating threads of this barrier.
Calls to
arrive_and_wait
synchronizes with the start of the completion phase of the barrier. The completion of the completion phase synchronizes with the return from the call.
Calls to
arrive_and_drop
and
arrive_and_wait
never introduce data races with themselves or each other.
Notes
It is safe for a thread to call either
arrive_and_wait()
or
arrive_and_drop()
immediately on return from this call. It's not necessary to ensure that all blocked threads have exited
arrive_and_wait()
before a thread calls it again.
The set of participating threads for a
barrier
constructed for
num_threads
threads is the first
num_threads
to arrive at its synchronization point. This set does not change from cycle to cycle, except for threads removed from the set due to
arrive_and_drop()
calls.
Exceptions
Throws nothing.
See also
|
arrive at the synchronization point and remove the current thread from the set of participating threads
(public member function) |