Standard library header <latch>
This header is part of the thread support library.
Classes |
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(C++20)
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single-use thread barrier (class) |
Synopsis
namespace std {
class latch;
}
Class std::latch
namespace std {
class latch {
public:
static constexpr ptrdiff_t max() noexcept;
constexpr explicit latch(ptrdiff_t expected);
~latch();
latch(const latch&) = delete;
latch& operator=(const latch&) = delete;
void count_down(ptrdiff_t update = 1);
bool try_wait() const noexcept;
void wait() const;
void arrive_and_wait(ptrdiff_t update = 1);
private:
ptrdiff_t counter; // exposition only
};
}
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