잡 기반 구현

WarhoundConsole/Job.cs

@@ -0,0 +1,61 @@
+namespace WarhoundConsole
+{
+    public abstract class Job
+    {
+        private readonly TimeSpan interval;
+
+        private Task task;
+        private DateTime lastExecutedTime;
+
+        public Job(TimeSpan interval)
+        {
+            if (interval <= TimeSpan.Zero)
+            {
+                throw new ArgumentOutOfRangeException(nameof(interval));
+            }
+
+            this.interval = interval;
+            this.task = Task.CompletedTask;
+            this.lastExecutedTime = DateTime.MinValue;
+        }
+
+        public bool TryExecute()
+        {
+            try
+            {
+                var now = DateTime.Now;
+                if (now - this.lastExecutedTime < this.interval)
+                {
+                    return false;
+                }
+
+                if (!this.task.IsCompleted)
+                {
+                    // 이 경우 로그를 출력하도록 하고, 타이밍을 조절해야한다.
+                    //Console.WriteLine($"Job skipped at {DateTime.Now}");
+                    return false;
+                }
+
+                this.lastExecutedTime = now;
+
+                this.task = Task.Run(async () =>
+                {
+                    await this.Execute();
+                });
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine(e);
+            }
+
+            return true;
+        }
+
+        protected abstract Task Execute();
+
+        public void Wait()
+        {
+            this.task?.Wait();
+        }
+    }
+}

WarhoundConsole/Program.cs

@@ -1,13 +1,11 @@
-using Microsoft.AspNetCore.Builder;
-using Microsoft.AspNetCore.Diagnostics;
-using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.DependencyInjection;
+
+using System.Diagnostics;
 
 namespace WarhoundConsole
 {
     public class Program
     {
-        public static void Main(string[] args)
+        public static int Main(string[] args)
         {
             try
             {
@@ -16,37 +14,53 @@ namespace WarhoundConsole
             catch (Exception e)
             {
                 Console.WriteLine(e);
+                return -1;
             }
+
+            return 0;
         }
 
         private static void MainInternal(string[] args)
         {
-            var builder = WebApplication.CreateBuilder(args);
-            builder.WebHost.UseUrls("http://localhost:80");
-            builder.Services.AddControllers();
-            builder.Services.AddEndpointsApiExplorer();
-            builder.Services.AddSwaggerGen();
+            Singleton.I.Initialize(new());
 
-            var app = builder.Build();
-            app.UseSwagger();
-            app.UseSwaggerUI();
-            app.MapControllers();
-            app.UseExceptionHandler(ExceptionHandler);
-            app.Run();
+            var jobs = new List<Job>();
+
+            var sw = Stopwatch.StartNew();
+            while (!Singleton.I.ExitRequested)
+            {
+                try
+                {
+                    sw.Restart();
+                    foreach (var job in jobs)
+                    {
+                        _ = job.TryExecute();
+                    }
+                    sw.Stop();
+
+                    const int targetFrameTimeMs = 10;
+                    if (sw.Elapsed.Milliseconds < targetFrameTimeMs)
+                    {
+                        Thread.Sleep(targetFrameTimeMs - sw.Elapsed.Milliseconds);
+                    }
+                }
+                catch (Exception e)
+                {
+                    Console.WriteLine(e);
+                }
+            }
+
+            foreach (var job in jobs)
+            {
+                job.Wait();
+            }
+
+            Shutdown();
         }
 
-        private static void ExceptionHandler(IApplicationBuilder applicationBuilder)
+        private static void Shutdown()
         {
-            applicationBuilder.Run(async context =>
-            {
-                var exceptionHandlerFeature = context.Features.Get<IExceptionHandlerFeature>();
-                if (exceptionHandlerFeature != null)
-                {
-                    var exception = exceptionHandlerFeature.Error;
-
-                    // Do something here
-                }
-            });
+            // DO SOMETHING
         }
     }
 }

WarhoundConsole/Singleton.cs

@@ -0,0 +1,57 @@
+namespace WarhoundConsole
+{
+    public sealed class Singleton
+    {
+        public sealed class InitializeParams
+        {
+            // FILL SOMETHING
+        }
+
+        public static Singleton I => i ??= new();
+        private static Singleton? i = null;
+
+        private bool isInitialized;
+
+        public bool ExitRequested { get; private set; }
+
+        private Singleton()
+        {
+            this.isInitialized = false;
+            this.ExitRequested = false;
+        }
+
+        public bool Initialize(InitializeParams initializeParams)
+        {
+            try
+            {
+                if (this.isInitialized)
+                {
+                    throw new InvalidOperationException("이미 초기화된 싱글톤");
+                }
+
+                if (initializeParams == null)
+                {
+                    throw new ArgumentNullException(nameof(initializeParams));
+                }
+
+                this.InitializeInternal(initializeParams);
+            }
+            finally
+            {
+                this.isInitialized = true;
+            }
+
+            return true;
+        }
+
+        private void InitializeInternal(InitializeParams initializeParams)
+        {
+            // DO SOMETHING
+        }
+
+        public void Exit()
+        {
+            this.ExitRequested = true;
+        }
+    }
+}

WarhoundConsole/Test.cs

@@ -1,40 +0,0 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace WarhoundConsole
-{
-    [ApiController]
-    [Route("api/test")]
-    public class Test : ControllerBase
-    {
-        [HttpGet("hello")]
-        public ActionResult<string> GetGreeting()
-        {
-            string message = "Hello!!!";
-            if (message.Length != 0)
-            {
-                //throw new Exception("Hello");
-            }
-            return Ok(message);
-        }
-
-        [HttpGet("data")]
-        public ActionResult<object> GetData()
-        {
-            var data = new { Id = 1, Name = "Sample Data", Timestamp = DateTime.UtcNow };
-            return Ok(data);
-        }
-
-        [HttpPost("json")]
-        public ActionResult<object> asd([FromBody] object obj)
-        {
-            //if (obj == null)
-            //{
-            //    return BadRequest("Invalid data.");
-            //}
-
-            Console.Write(obj.ToString());
-
-            return Ok(new { a = 1, b = 2, c = "c" });
-        }
-    }
-}