2.4 KiB
[thread.sharedtimedmutex.class]
32 Concurrency support library [thread]
32.6 Mutual exclusion [thread.mutex]
32.6.4 Mutex requirements [thread.mutex.requirements]
32.6.4.5 Shared timed mutex types [thread.sharedtimedmutex.requirements]
32.6.4.5.2 Class shared_timed_mutex [thread.sharedtimedmutex.class]
namespace std {class shared_timed_mutex {public: shared_timed_mutex(); ~shared_timed_mutex();
shared_timed_mutex(const shared_timed_mutex&) = delete; shared_timed_mutex& operator=(const shared_timed_mutex&) = delete; // exclusive ownershipvoid lock(); // blockingbool try_lock(); template<class Rep, class Period>bool try_lock_for(const chrono::duration<Rep, Period>& rel_time); template<class Clock, class Duration>bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time); void unlock(); // shared ownershipvoid lock_shared(); // blockingbool try_lock_shared(); template<class Rep, class Period>bool try_lock_shared_for(const chrono::duration<Rep, Period>& rel_time); template<class Clock, class Duration>bool try_lock_shared_until(const chrono::time_point<Clock, Duration>& abs_time); void unlock_shared(); };}
The class shared_timed_mutex provides a non-recursive mutex with shared ownership semantics.
The class shared_timed_mutex meets all of the shared timed mutex requirements ([thread.sharedtimedmutex.requirements]).
It is a standard-layout class ([class.prop]).
The behavior of a program is undefined if
it destroys a shared_timed_mutex object owned by any thread,
a thread attempts to recursively gain any ownership of a shared_timed_mutex, or
a thread terminates while possessing any ownership of a shared_timed_mutex.