NAME¶

std::shared_lock::try_lock - std::shared_lock::try_lock

Synopsis¶

bool try_lock(); (since C++14)

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¶

This section is incomplete
Reason: no example

See also¶

lock locks the associated mutex
(public member function)
tries to lock (i.e., takes ownership of) the associated mutex without
try_lock blocking
(public member function of std::unique_lock<Mutex>)
try_lock_for tries to lock the associated mutex, for the specified duration
(public member function)
try_lock_until tries to lock the associated mutex, until a specified time point
(public member function)
unlock unlocks the associated mutex
(public member function)