ThreadInterruptedException Klas

Definitie

public ref class ThreadInterruptedException : SystemException

[System.Serializable]
public class ThreadInterruptedException : SystemException

[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public class ThreadInterruptedException : SystemException

public class ThreadInterruptedException : SystemException

[<System.Serializable>]
type ThreadInterruptedException = class
    inherit SystemException

[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type ThreadInterruptedException = class
    inherit SystemException

type ThreadInterruptedException = class
    inherit SystemException

Public Class ThreadInterruptedException
Inherits SystemException

Overname

Object

Exception

SystemException

ThreadInterruptedException

Kenmerken

SerializableAttribute ComVisibleAttribute

Voorbeelden

In het volgende codevoorbeeld ziet u het gedrag van een actieve thread wanneer deze wordt onderbroken en vervolgens wordt geblokkeerd.

using System;
using System.Security.Permissions;
using System.Threading;

class ThreadInterrupt
{
    static void Main()
    {
        StayAwake stayAwake = new StayAwake();
        Thread newThread = 
            new Thread(new ThreadStart(stayAwake.ThreadMethod));
        newThread.Start();

        // The following line causes an exception to be thrown 
        // in ThreadMethod if newThread is currently blocked
        // or becomes blocked in the future.
        newThread.Interrupt();
        Console.WriteLine("Main thread calls Interrupt on newThread.");

        // Tell newThread to go to sleep.
        stayAwake.SleepSwitch = true;

        // Wait for newThread to end.
        newThread.Join();
    }
}

class StayAwake
{
    bool sleepSwitch = false;

    public bool SleepSwitch
    {
        set{ sleepSwitch = value; }
    }

    public StayAwake(){}

    public void ThreadMethod()
    {
        Console.WriteLine("newThread is executing ThreadMethod.");
        while(!sleepSwitch)
        {
            // Use SpinWait instead of Sleep to demonstrate the 
            // effect of calling Interrupt on a running thread.
            Thread.SpinWait(10000000);
        }
        try
        {
            Console.WriteLine("newThread going to sleep.");

            // When newThread goes to sleep, it is immediately 
            // woken up by a ThreadInterruptedException.
            Thread.Sleep(Timeout.Infinite);
        }
        catch(ThreadInterruptedException e)
        {
            Console.WriteLine("newThread cannot go to sleep - " +
                "interrupted by main thread.");
        }
    }
}

Option Explicit
Option Strict

Imports System.Security.Permissions
Imports System.Threading

Public Class ThreadInterrupt

    <MTAThread> _
    Shared Sub Main()
        Dim stayAwake As New StayAwake()
        Dim newThread As New Thread(AddressOf stayAwake.ThreadMethod)
        newThread.Start()

        ' The following line causes an exception to be thrown 
        ' in ThreadMethod if newThread is currently blocked
        ' or becomes blocked in the future.
        newThread.Interrupt()
        Console.WriteLine("Main thread calls Interrupt on newThread.")

        ' Tell newThread to go to sleep.
        stayAwake.SleepSwitch = True

        ' Wait for newThread to end.
        newThread.Join()
    End Sub

End Class

Public Class StayAwake

    Dim sleepSwitchValue As Boolean = False

    WriteOnly Property SleepSwitch As Boolean
        Set
            sleepSwitchValue = Value
        End Set
    End Property 

    Sub New()
    End Sub

    Sub ThreadMethod()
        Console.WriteLine("newThread is executing ThreadMethod.")
        While Not sleepSwitchValue

            ' Use SpinWait instead of Sleep to demonstrate the 
            ' effect of calling Interrupt on a running thread.
            Thread.SpinWait(10000000)
        End While
        Try
            Console.WriteLine("newThread going to sleep.")

            ' When newThread goes to sleep, it is immediately 
            ' woken up by a ThreadInterruptedException.
            Thread.Sleep(Timeout.Infinite)
        Catch ex As ThreadInterruptedException
            Console.WriteLine("newThread cannot go to " & _
                "sleep - interrupted by main thread.")
        End Try
    End Sub

End Class

Opmerkingen

Nadat een thread is gemaakt, bevindt deze zich in een of meer ThreadState statussen totdat deze wordt vernietigd. Wanneer Interrupt een thread zich in de WaitSleepJoin status bevindt, wordt er een ThreadInterruptedException in de doelthread gegenereerd. Als de thread niet de WaitSleepJoin status heeft, wordt de uitzondering pas gegenereerd als de thread die status heeft. Als de thread nooit wordt geblokkeerd, kan deze worden voltooid zonder ooit te worden onderbroken.

ThreadInterruptedException maakt gebruik van de HRESULT-COR_E_THREADINTERRUPTED, met de waarde 0x80131519.

Voor een lijst van initiële eigenschapswaarden voor een exemplaar van ThreadInterruptedException, zie de ThreadInterruptedException-constructoren.

Zie ook

• Thread
• ThreadState
• Threads onderbreken en hervatten