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.