std::cv_status

C++

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Technical Specifications

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mutex (C++11) recursive_mutex (C++11) shared_mutex (C++17)	timed_mutex (C++11) recursive_timed_mutex (C++11) shared_timed_mutex (C++14)
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lock_guard (C++11) scoped_lock (C++17) unique_lock (C++11) shared_lock (C++14) defer_lock_ttry_to_lock_tadopt_lock_t (C++11)(C++11)(C++11)	lock (C++11) try_lock (C++11) defer_locktry_to_lockadopt_lock (C++11)(C++11)(C++11) once_flag (C++11) call_once (C++11)
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condition_variable (C++11)
condition_variable_any (C++11)
notify_all_at_thread_exit (C++11)
cv_status (C++11)
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promise (C++11) future (C++11) shared_future (C++11) packaged_task (C++11) async (C++11)	launch (C++11) future_status (C++11) future_error (C++11) future_category (C++11) future_errc (C++11)

Defined in header <condition_variable>
enum class cv_status { no_timeout, timeout };		(since C++11)

The scoped enumeration std::cv_status describes whether a timed wait returned because of timeout or not.

std::cv_status is used by the wait_for and wait_until methods of std::condition_variable and std::condition_variable_any.

Member constants

Constant	Explanation
no_timeout	the condition variable was awakened with notify_all, notify_one, or spuriously
timeout	the condition variable was awakened by timeout expiration

See also

wait_for	blocks the current thread until the condition variable is woken up or after the specified timeout duration (public member function of std::condition_variable)
wait_for	blocks the current thread until the condition variable is woken up or after the specified timeout duration (public member function of std::condition_variable_any)
wait_until	blocks the current thread until the condition variable is woken up or until specified time point has been reached (public member function of std::condition_variable)
wait_until	blocks the current thread until the condition variable is woken up or until specified time point has been reached (public member function of std::condition_variable_any)