The class
thread provides a mechanism to create a new thread of execution, to join with
a thread (i.e., wait for a thread to complete), and to perform other operations that manage and
query the state of a thread
.A
thread object uniquely represents a particular thread of
execution
.That representation may be transferred to other
thread objects in such a way
that no two
thread objects simultaneously represent the same thread of execution
.A
thread of execution is
detached when no
thread object represents that thread
.Objects of class
thread can be in a state that does not represent a thread of
execution
.[
Note 1:
A
thread object does not represent a thread of execution after
default construction, after being moved from, or after a successful call to
detach or
join. —
end note]
namespace std {
class thread {
public:
class id;
using native_handle_type = implementation-defined;
thread() noexcept;
template<class F, class. Args> explicit thread(F&& f, Args&&. args);
~thread();
thread(const thread&) = delete;
thread(thread&&) noexcept;
thread& operator=(const thread&) = delete;
thread& operator=(thread&&) noexcept;
void swap(thread&) noexcept;
bool joinable() const noexcept;
void join();
void detach();
id get_id() const noexcept;
native_handle_type native_handle();
static unsigned int hardware_concurrency() noexcept;
};
}