[thread.sharedtimedmutex.class] (original) (raw)

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;void lock(); bool 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();void lock_shared(); bool 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 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.