thread sync

MultiThread/ThreadSyncTest/Program.cs

@@ -0,0 +1,62 @@
+namespace ThreadSyncTest;
+
+internal class Program
+{
+	static void Main(string[] args)
+	{
+		int num = 0;
+		object obj = new object();
+
+		Thread t1 = new Thread(() =>
+		{
+			for (int i = 0; i < 1000000; i++)
+			{
+				lock (obj)
+				{
+					num++;
+				}
+
+				//try
+				//{
+				//	Monitor.Enter(obj);
+				//	num++; // Critical section
+				//}
+				//finally
+				//{
+				//	Monitor.Exit(obj);
+				//}
+			}
+		});
+
+		Thread t2 = new Thread(() =>
+		{
+			for (int i = 0; i < 1000000; i++)
+			{
+				lock (obj)
+				{
+					num++;
+				}
+
+				//try
+				//{
+				//	Monitor.Enter(obj);
+				//	num++; // Critical section
+				//}
+				//finally
+				//{
+				//	Monitor.Exit(obj);
+				//}
+			}
+		});
+
+		t1.Start();
+		t2.Start();
+
+		t1.Join();
+		t2.Join();
+
+		Console.WriteLine(num);
+
+		Console.ReadLine();
+	}
+}

MultiThread/ThreadSyncTest/ThreadSyncTest.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>