std::experimental::flex_barrier::flex_barrier
From cppreference.com
< cpp | experimental | flex barrier
| explicit flex_barrier( std::ptrdiff_t num_threads ); |
(1) | (concurrency TS) |
| template< class F > flex_barrier( std::ptrdiff_t num_threads, F completion ); |
(2) | (concurrency TS) |
| flex_barrier( const flex_barrier & ) = delete; |
(3) | (concurrency TS) |
1) Has the same effect as flex_barrier(num_threads, c), where
c is a Callable object whose invocation returns -1 and has no side effects.2) Constructs a
flex_barrier for num_threads participating threads, using completion for the completion phase. The set of participating threads is the first num_threads threads to arrive at the synchronization point.3) Copy constructor is deleted;
flex_barrier is not copyable.Parameters
| num_threads | - | the number of participating threads for the flex_barrier; must be non-negative
|
| completion | - | a function object controlling the completion phase; must be Callable with no arguments and return type std::ptrdiff_t, and when invoked, must return a value no less than -1 and must not throw an exception |
| Type requirements | ||
-F must meet the requirements of CopyConstructible.
| ||
Notes
If num_threads is zero, the set of participating threads is empty, and flex_barrier can only be destroyed.