Answer Happy

Consider the following algorithm for mutual exclusion for 3 processes using semaphores. /* Program Mutual Exculsion */ semaphore s=2; void R (int i) While (true) { P (s); * critical section *; V (S); * remainder *; } Void main () { Parbegin (R(1), R(2), R(3)); Suppose we have 3 processes R1, R2 and R3 competing for the same critical section and we are using a semaphore s as declared in the algorithm. Complete the table below that shows how the processes execute. The focus of this table is only on how s changes as the semaphore is used and the order in which the processes call P and V. It can be seen from the table that R3 calls P first followed by R1 then R2. You need to indicate the order in which V is called and the value of s after each call, indicating which processes, if any, blocked in the queue. Explain your answer and reasoning. Instruction Performed R3: P (S) R1: P(S) R2: P (S) Values of S Blocked Queue: 82