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status_t lock (CAVERN_blocking_t blockingParam)

Lock this key

Documentation

Lock this key. The lock works as follows: First this call blocks while it checks the lock. If it is not locked then it grabs the lock. If the item is already locked it can be set to block further until lock becomes available or return with a failure to lock.

Note: Eventually we will also provide read/write locks to improve concurrency.

Returns:
The return value is status of the lock attempt: either OK or FAILED

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