■ Task 클래스에서 반복 작업자를 사용하는 방법을 보여준다. (기능 개선)
▶ RepeatWorker.cs
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using System; using System.Threading; using System.Threading.Tasks; namespace TestProject { /// <summary> /// 작업 반복자 /// </summary> public class RepeatWorker : IDisposable { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field (Private) /// <summary> /// 취소 토큰 소스 /// </summary> private CancellationTokenSource cancellationTokenSource = null; /// <summary> /// 건너뛰기 시간 (단위 : 밀리초) /// </summary> private int skipTime; /// <summary> /// 건너뛰기 시간 범위 /// </summary> private TimeSpan skipTimeSpan; /// <summary> /// 휴지 시간 (단위 : 밀리초) /// </summary> private int sleepTime = 1000; /// <summary> /// 휴지 시간 범위 /// </summary> private TimeSpan sleepTimeSpan; /// <summary> /// 작업 액션 /// </summary> private Action<object> workAction = null; /// <summary> /// 작업 매개 변수 /// </summary> private object workParameter = null; /// <summary> /// 실행 여부 /// </summary> private bool isRunning = false; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 건너뛰기 시간 (단위 : 밀리초) - SkipTime /// <summary> /// 건너뛰기 시간 (단위 : 밀리초) /// </summary> public int SkipTime { get { return this.skipTime; } set { this.skipTime = value; this.skipTimeSpan = TimeSpan.FromMilliseconds(this.skipTime); } } #endregion #region 휴지 시간 (단위 : 밀리초) - SleepTime /// <summary> /// 휴지 시간 (단위 : 밀리초) /// </summary> public int SleepTime { get { return this.sleepTime; } set { this.sleepTime = value; this.sleepTimeSpan = TimeSpan.FromMilliseconds(this.sleepTime); } } #endregion #region 작업 액션 - WorkAction /// <summary> /// 작업 액션 /// </summary> public Action<object> WorkAction { get { return this.workAction; } set { this.workAction = value; } } #endregion #region 작업 매개 변수 - WorkParameter /// <summary> /// 작업 매개 변수 /// </summary> public object WorkParameter { get { return this.workParameter; } set { this.workParameter = value; } } #endregion #region 실행 여부 - IsRunning /// <summary> /// 실행 여부 /// </summary> public bool IsRunning { get { return this.isRunning; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - RepeatWorker() /// <summary> /// 생성자 /// </summary> public RepeatWorker() { } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 시작하기 - Start() /// <summary> /// 시작하기 /// </summary> public void Start() { this.cancellationTokenSource = new CancellationTokenSource(); _ = ExecuteWorkAsync(this.cancellationTokenSource.Token); } #endregion #region 중단하기 - Stop() /// <summary> /// 중단하기 /// </summary> public void Stop() { if(this.cancellationTokenSource != null) { this.cancellationTokenSource.Cancel(); this.cancellationTokenSource.Dispose(); this.cancellationTokenSource = null; } } #endregion #region 리소스 해제하기 - Dispose() /// <summary> /// 리소스 해제하기 /// </summary> public void Dispose() { Stop(); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 비동기 작업 실행하기 - ExecuteWorkAsync() /// <summary> /// 비동기 작업 실행하기 /// </summary> /// <returns>태스크</returns> private Task ExecuteWorkAsync() { return Task.Run(()=> { this.workAction(this.workParameter); }); } #endregion #region 비동기 작업 실행하기 - ExecuteWorkAsync(cancellationToken) /// <summary> /// 비동기 작업 실행하기 /// </summary> /// <param name="cancellationToken">취소 토큰</param> /// <returns>태스크</returns> private async Task ExecuteWorkAsync(CancellationToken cancellationToken) { try { this.isRunning = true; await Task.Delay(this.skipTimeSpan, cancellationToken); while(true) { await ExecuteWorkAsync(); await Task.Delay(this.sleepTimeSpan, cancellationToken); } } catch(Exception) { } finally { this.isRunning = false; } } #endregion } } |
▶ MainForm.cs
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using System; using System.Threading; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 동기화 컨텍스트 /// </summary> private SynchronizationContext context; /// <summary> /// 반복 작업자 /// </summary> private RepeatWorker worker; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.context = SynchronizationContext.Current; this.worker = new RepeatWorker(); this.worker.SleepTime = 1000; this.worker.WorkParameter = "홍길동"; this.worker.WorkAction = (p) => { this.context.Send ( _ => { this.listBox.Items.Add($"{DateTime.Now.ToString("HH:mm:ss")} : {p}, {this.worker.IsRunning}"); }, null ); }; this.runButton.Click += runButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 실행 버튼 클릭시 처리하기 - runButton_Click(sender, e) /// <summary> /// 실행 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void runButton_Click(object sender, EventArgs e) { if(this.runButton.Text == "실행") { this.runButton.Text = "중단"; this.worker.Start(); } else { this.runButton.Text = "실행"; this.worker.Stop(); Thread.Sleep(500); this.listBox.Items.Add($"{DateTime.Now.ToString("HH:mm:ss")} : {this.worker.WorkParameter}, {this.worker.IsRunning}"); } } #endregion } } |
