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Question $3$

Consider the following pthread function:Assume that turn is a boolean array of size $2.$ All elements are initialized to false.Assume that the main function creates two threads to execute the function shown above. Assum argument $0$ to the first thread and $1$ to the second thread.Assume that critical$\_$region$()$ is a function that contains code that accesses shared data and henc protected via mutual exclusion.Assume that non$\_$critical$\_$region$()$ is a function that contains code that does not access any share

Complete the following sentences based on your observations of the code in thread$\_$func:

The function $$ the basic requirement of mutual exclusion.

The function $$ the requirement that a thread not in its critical regic other threads from entering their critical region.