Thread속 Loop(for)에서 event 발생 기다리기 : System.Threading.AutoResetEvent

Imports System.Threading Public Class Form1 Private Smptimer As New System.Timers.Timer(3000) Public Sub New() InitializeComponent() AddHandler Smptimer.Elapsed, AddressOf SemaphoreCheck Smptimer.AutoReset = True End Sub Private _WaitHandle2_ As New System.Threading.AutoResetEvent(False) Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim GetDataWorker As WaitCallback = New WaitCallback(AddressOf TRDataCall) ThreadPool.QueueUserWorkItem(GetDataWorker, Nothing) End Sub Private Sub TRDataCall(ByVal arg As Object) For i As Integer = 0 To 20 Smptimer.EndInit() Smptimer.Start() Console.WriteLine("호출 : " & CStr(i)) _WaitHandle2_.WaitOne() Next End Sub Private Sub SemaphoreCheck(ByVal sender As Object, ByVal e As System.Timers.ElapsedEventArgs) Console.WriteLine("시간초과") _WaitHandle2_.Set() Smptimer.EndInit() End Sub Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click Console.WriteLine("응답!") _WaitHandle2_.Set() End Sub End Class

Button1 : Thread 시작(0~20 For 문 _WaitHandle2_.WaitOne())

Button2 : Event발생기(_WaitHandle2_.Set())

Button1을 누르면 Thread에서 For문이 시작.

For문 끝에는 _WaitHandle2_.WaitOne()가 있어서, _WaitHandle2_.set()이 될때까지 기다린다.

Button2를 누르면 _WaitHandle2_.Set()이 발생되서 다음 loop진행.

하지만, timer에 의해 3초동안 button2가 눌리지 않으면 강제 _WaitHandle2_.set().