std::shared_lock::lock

void lock();

Locks the associated mutex in shared mode. Effectively calls mutex()->lock_shared().

Parameters

(none).

Return value

(none).

Exceptions

• Any exceptions thrown by mutex()->lock_shared()
• If there is no associated mutex, std::system_error with an error code of std::errc::operation_not_permitted
• If the associated mutex is already locked by this shared_lock (that is, owns_lock returns true), std::system_error with an error code of std::errc::resource_deadlock_would_occur

Example

See also