33 Thread support library [thread]

33.2 Requirements [thread.req]

33.2.5 Requirements for Lockable types [thread.req.lockable]

33.2.5.2 BasicLockable requirements [thread.req.lockable.basic]

1
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A type L meets the BasicLockable requirements if the following expressions are well-formed and have the specified semantics (m denotes a value of type L).

m.lock()

2
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Effects: Blocks until a lock can be acquired for the current execution agent. If an exception is thrown then a lock shall not have been acquired for the current execution agent.

m.unlock()

3
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Requires: The current execution agent shall hold a lock on m.

4
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Effects: Releases a lock on m held by the current execution agent.

5
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Throws: Nothing.