critical section

Computing Dictionary

critical section definition


A non-re-entrant piece of code that can only be executed by one process at a time. It will usually terminate in bounded time and a process will only have to wait a bounded time to enter it. Some synchronisation mechanism is required at the entry and exit of the critical section to ensure exclusive use.

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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