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    std::shared_lock<Mutex>::try_lock

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    std::shared_lock
     
    bool try_lock();
    		 (since C++14)
    See More

    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

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