NOTE:

P and V refer to the Semaphore operations. For the sake of this question, we can assume they are the following:

public synchronized void P() { value--; if (value

public synchronized void V() { value++; if (value>=0) notify(); }

Generally, both P and V operation must be implemented as a critical section. Are there any cases when any of these two operations can safely be implemented as a non-critical section? If yes, demonstrate through an example when/how this can be done without creating any violations. If no, explain why these operations must always be implemented as critical sections. Generally, both P and V operation must be implemented as a critical section. Are there any cases when any of these two operations can safely be implemented as a non-critical section? If yes, demonstrate through an example when/how this can be done without creating any violations. If no, explain why these operations must always be implemented as critical sections