std::shared_lock::lock

 

C++

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Technical Specifications

 

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lock_guard (C++11) unique_lock (C++11) shared_lock (C++14) defer_lock_ttry_to_lock_tadopt_lock_t (C++11)(C++11)(C++11)	lock (C++11) try_lock (C++11) defer_locktry_to_lockadopt_lock (C++11)(C++11)(C++11) once_flag (C++11) call_once (C++11)
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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

std::swap(shared_lock)

 

void lock();		(since C++14)

Locks the associated mutex in shared mode. Effectively calls mutex()->lock_shared().

Parameters

(none)

Return value

(none)

Exceptions

• Any exceptions thrown by mutex()->lock_shared()

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

• If the associated mutex is already locked by this shared_lock (that is, owns_lock returns true), std::system_error with an error code of std::errc::resource_deadlock_would_occur

See also

try_lock	tries to lock the associated mutex (public member function)
unlock	unlocks the associated mutex (public member function)