Answer Posted / mufti usmaan system analyst
In concurrent programming a critical section is a piece of
code that accesses a shared resource (data structure or
device) that must not be concurrently accessed by more than
one thread of execution. A critical section will usually
terminate in fixed time, and a thread, task or process will
have to wait a fixed time to enter it (aka bounded waiting).
Some synchronization mechanism is required at the entry and
exit of the critical section to ensure exclusive use, for
example a semaphore
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