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std::shared_mutex::try_lock(3) C++ Standard Libary std::shared_mutex::try_lock(3)

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


Throws nothing.

Example


This section is incomplete
Reason: no example

See also


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

Category:


* Todo no example

2024.06.10 http://cppreference.com