bool try_lock();

Tries to lock the associated mutex in shared mode without blocking. Effectively calls mutex()->try_lock_shared().

std::system_error is thrown if there is no associated mutex or if the mutex is already locked.

Parameters

(none)

Return value

true if the ownership of the mutex has been acquired successfully, false otherwise.

Exceptions

• Any exceptions thrown by mutex()->try_lock_shared().

• If there is no associated mutex, std::system_error with an error code of std::errc::operation_not_permitted.

• If the mutex is already locked, std::system_error with an error code of std::errc::resource_deadlock_would_occur.

Example

See also