locking
noun A2- The use of a lock or a mutex to restrict access to a part of the code to at most one process.
Plural lockings
From the library
Matthew encountered the stationmaster locking up the ticket office preparatory to going home for supper, and asked him if the five-thirty train would soon be along.
And still from all the cross streets they were hurrying and rattling toward the converging point at full speed, and hurling themselves into the struggling mass, locking wheels and adding their drivers’ imprecations to the clamour.
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