std::shared_mutex::try_lock (3) - Linux Man Pages

std::shared_mutex::try_lock: std::shared_mutex::try_lock

NAME

std::shared_mutex::try_lock - std::shared_mutex::try_lock

Synopsis


bool try_lock(); (since C++17)


Tries to lock the mutex. Returns immediately. On successful lock acquisition returns true, otherwise returns false.
This function is allowed to fail spuriously and return false even if the mutex is not currently locked by any other thread.
If try_lock is called by a thread that already owns the mutex in any mode (shared or exclusive), the behavior is undefined.
Prior unlock() operation on the same mutex synchronizes-with (as defined in std::memory_order) this operation if it returns true. Note that prior lock() does not synchronize with this operation if it returns false.

Parameters


(none)

Return value


true if the lock was acquired successfully, otherwise false.

Exceptions


(none)

Example


 This section is incomplete
 Reason: no example

See also


       locks the mutex, blocks if the mutex is not available
lock (public member function)
       unlocks the mutex
unlock (public member function)