Question

C 155 (d 105.5 4. The following is apiece of C# code. Explain what it will do. using System using System.Collections.Generic; using System.Ling using System.Text using System. Threading.Tasks using System.Threading Inamespace testThreading class Program static Thread[] threads new Thread[10] static Semaphore sem new Semaphore(3, 3) static void Csharpcorner() Console.iriteline( o is waiting in line... ", Thread.Current Thread.None) sem.Waitone); Thread.Current Thread. Name); Console.Mriteline( (o enters the C-sharpcorner!", Thread.Sleep(38e); Console.kiriteline("(e) is leaving the C_sharpcorner", Thread.Current sem.Release); static void Main(stringt] args) for (int i -e; iく10; i++) threads[i] new Thread(C sharpcorner); threads[i].Name "thread_"; threads[i].Start) Console.Read)

Answer 1

This code simply describe the working of Semaphore .

Semaphore class is instanciated using

static Semaphore sem = new Semaphore(3, 3);

It takes two arguments

The first is initial number of resources(at the time of object creation). The second is the maximum number of slots available.

Before entring to critical section ,

sem.WaitOne(); is called .

and after leaving the critical section

sem.Release(); is called .