C++ named requirements: Lockable (since C++11)
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C++ named requirements
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
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Lockable
(C++11)
(C++11)
(C++14)
(C++14)
(C++11)
(C++11)
(C++17)
(C++14)
(C++20)
(C++20)
(C++23)
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(C++11)
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(C++11)
The Lockable requirements extends the BasicLockable requirements to include attempted locking.
[edit] Requirements
For type L
to be Lockable, it must meet the above condition as well as the following:
Expression | Effects | Return value |
---|---|---|
m.try_lock() | Attempts to acquire the lock for the current execution agent (thread, process, task) without blocking. If an exception is thrown, no lock is obtained. | true if the lock was acquired, false otherwise |
[edit] Notes
The try_lock
member functions obtains a non-shared lock on m on success.
[edit] Standard library
The following standard library types satisfy Lockable requirements:
(C++11)
(class) [edit]
(C++11)
by the same thread and implements locking with a timeout
(class) [edit]
(C++14)
(class) [edit]