improved horserace

ADIS_Csharp/Sync-Ueb02-Latch/ISynch.cs

@@ -8,6 +8,8 @@ namespace Sync_Ueb02_Latch
     {
         void Acquire();
         void Release();
+
+        uint GetAmountOfAquires();
     }
 
 }

ADIS_Csharp/Sync-Ueb02-Latch/Latch.cs

@@ -6,12 +6,30 @@ using System.Threading;
 namespace Sync_Ueb02_Latch
 {
     class Latch : ISynch
-    {   private ManualResetEvent waitHandle = new(false);
+    {   
+        private ManualResetEvent waitHandle = new(false);
+        private static uint countAquired = 0;
+        private static object syncLock = new();
 
         public void Acquire()
         {
+            lock (syncLock)
+            {
+                countAquired++;
+            }
             this.waitHandle.WaitOne();
         }
+
+        public uint GetAmountOfAquires()
+        {
+            uint readCount = 0;
+            lock(syncLock)
+            {
+                readCount = countAquired;
+            }
+            return readCount;
+        }
+
         public void Release()
         {
             this.waitHandle.Set();

ADIS_Csharp/Sync-Ueb02-Latch/Turf.cs

@@ -14,6 +14,11 @@ namespace Sync_Ueb02_Latch
             {
                 new Thread(new RaceHorse(i, startBox).Run).Start();
             }
+            // wait until all horses are ready
+            while(startBox.GetAmountOfAquires() < 5)
+            {
+                Thread.Sleep(20);
+            }
             Console.WriteLine("Start...");
             startBox.Release();
         }