std::shared_lock<Mutex>::try_lock

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std::shared_lock

Member functions
shared_lock::shared_lock
shared_lock::~shared_lock
shared_lock::operator=
Shared locking
shared_lock::lock
shared_lock::try_lock
shared_lock::try_lock_for
shared_lock::try_lock_until
shared_lock::unlock
Modifiers
shared_lock::swap
shared_lock::release
Observers
shared_lock::mutex
shared_lock::owns_lock
shared_lock::operator bool
Non-member functions
swap(std::shared_lock)

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

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

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

[edit]Parameters

(none)

[edit]Return value

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

[edit]Exceptions

Any exceptions thrown bymutex()->try_lock_shared().

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

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

[edit]Example

This section is incomplete
Reason: no example

[edit]See also

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