// 4
 public static ConnPooL GetInstance()
 {
     if (Instance == null)
     {
         lock (key)
         {
             if (Instance == null)
             {
                 Instance = new ConnPooL();
             }
         }
     }
     return(Instance);
 }
Exemple #2
0
        static void Main(string[] args)
        {
            List <Thread> threads = new List <Thread>();

            Console.WriteLine("45 * 12 = ?");

            var ct = Thread.CurrentThread;

            // int result = Convert.ToInt32(Console.ReadLine());
            for (int i = 3; i >= 0; i--)
            {
                Console.WriteLine($"Main thread {i}");

                Thread t = new Thread(foo);
                threads.Add(t);
                //t1.IsBackground = true;

                t.Start();
                Console.WriteLine("Main thread is going to sleep .............:");

                Thread.Sleep(1000);
            }
            Console.WriteLine("BOOM");
            Console.WriteLine("Main thread is over ...........");
            threads.ForEach(_ => _.Abort());

            /* ---------------------------------------------------------- Pattern_Queue 31-01-21 -----------------------------------------------------------*/

            Pattern_Queue workerQueue = new Pattern_Queue();
            //new Thread(Counter).Start();
            //new Thread(Counter).Start();
            //new Thread(Counter).Start();
            //new Thread(Counter).Start();

            Pattern_Queue wq = new Pattern_Queue(10);

            wq.Produce(() =>
            {
                for (int i = 1; i <= 5; i++)
                {
                    Console.WriteLine($"=== i_1_5 {i}");
                    Thread.Sleep(1 * 1000);
                }
            });

            wq.Produce(() =>
            {
                for (int i = 1; i <= 3; i++)
                {
                    Console.WriteLine($"=== i_1_3 {i}");
                    Thread.Sleep(1 * 1000);
                }
            });

            wq.Produce(() =>
            {
                for (int i = 1; i <= 8; i++)
                {
                    Console.WriteLine($"=== i_1_8 {i}");
                    Thread.Sleep(1 * 1000);
                }
            });

            Console.WriteLine("Main waiting...");
            Thread.Sleep(100);
            Console.WriteLine("Main finished...");

            /* -------------------------------------------- Solution_Targil -----------------------------------------------------*/
            SolutionTargil sl     = new SolutionTargil();
            List <Thread>  thread = new List <Thread>();

            thread.Add(new Thread(() => {
                for (int i = 0; i < 100; i++)
                {
                    sl.Push(i);
                    Thread.Sleep(r.Next(100, 500));
                }
            }));
            thread.Add(new Thread(() => {
                Thread.Sleep(500);
                for (int i = 0; i < 50; i++)
                {
                    sl.Pop();
                    Thread.Sleep(r.Next(500, 1000));
                }
            }));
            threads.Add(new Thread(() => {
                for (int i = 0; i < 5; i++)
                {
                    sl.Peep();
                    Thread.Sleep(r.Next(100, 200));
                }
            }));
            Console.WriteLine("Wait...");
            //Thread.Sleep(3000);
            foreach (var item in threads)
            {
                item.Start();
            }
/* ***************************************************  07-02-21 **********************************************************************************/

            /* -------------------------------------------- !!! PATTERN SINLETON !!! -------------------------------------------------------------*/


            ClockSingleton.GetInstance().GetDateTimeByRegion();
            if (ClockSingleton.GetInstance() == ClockSingleton.GetInstance())
            {
                Console.WriteLine("equal");
            }
            else
            {
                Console.WriteLine("Not equal!");
            }

            // ClockSingleton.GetInstance() = null; // Error!
            ClockSingleton sing = ClockSingleton.GetInstance();

            sing = null; // will not change the singleton

            /* -------------------------------------------- Solution_Targil_SINGLETON  -----------------------------------------------------*/

            DbConnection conn1 = ConnPooL.GetInstance().GetConnection();

            ConnPooL.GetInstance().ReturnConnection(conn1);

            /* -------------------------------------------- MONITOR_LOCK  ---------------------------------------------------------*/

            Thread t1 = new Thread(() =>
            {
                try { Monitor_LOCK.DoWork(); } catch { Console.WriteLine("Exception"); }
            });
            Thread t2 = new Thread(() =>
            {
                try { Monitor_LOCK.DoWork(); } catch { Console.WriteLine("Exception"); }
            });

            t1.Start();
            t2.Start();

            t1.Join();
            t2.Join();


            /* -------------------------------------------- PATTERN POOL  ---------------------------------------------------------*/
            MyConnectionPool.Instance.GetConnection(); // blocking
                                                       // Task:
                                                       // ...Blocking
                                                       // ...Sync
                                                       // ...Async

            // ................


            /* --------------------------------------------Solution_targil PATTERN POOL  -----------------------------------------*/
            Thread t01 = new Thread(() => MyFileManager.Instance.WriteToFile("Line1"));
            Thread t02 = new Thread(() => MyFileManager.Instance.WriteToFile("Line2"));
            Thread t3  = new Thread(() => MyFileManager.Instance.WriteToFile("Line3"));
            Thread t4  = new Thread(() => MyFileManager.Instance.DeleteFile());
            Thread t5  = new Thread(() => MyFileManager.Instance.CreateFile());
            Thread t6  = new Thread(() => MyFileManager.Instance.WriteToFile("Line4"));
            Thread t7  = new Thread(() => MyFileManager.Instance.CreateFile());
            //Thread t8 = new Thread(() => MyFileManager.Instance.DeleteFile());
            Thread t8 = new Thread(() => MyFileManager.Instance.WriteToFile("Done."));
            Thread t9 = new Thread(() => MyFileManager.Instance.WriteToFile("Line5"));

            t01.Start();
            Thread.Sleep(1000);
            t02.Start();
            Thread.Sleep(1000);
            t3.Start();
            Thread.Sleep(1000);
            t4.Start();
            Thread.Sleep(1000);
            t5.Start();
            Thread.Sleep(1000);
            t6.Start();
            Thread.Sleep(1000);
            t7.Start();
            Thread.Sleep(1000);
            t8.Start();
            Thread.Sleep(1000);
            t9.Start();
            Thread.Sleep(1000);
        }