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ThreadInterruptedException Class (System.Threading) | Microsoft Learn

The exception that is thrown when a Thread is interrupted while it is in a waiting state.

public ref class ThreadInterruptedException : SystemException

public class ThreadInterruptedException : SystemException

[System.Serializable]
public class ThreadInterruptedException : SystemException

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

type ThreadInterruptedException = class
    inherit SystemException

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

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

Public Class ThreadInterruptedException
Inherits SystemException

Inheritance

ThreadInterruptedException

Attributes

The following code example shows the behavior of a running thread when it is interrupted and subsequently gets blocked.

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

After a thread is created, it is in one or more ThreadState states until it is destroyed. Calling Interrupt when a thread is in the WaitSleepJoin state will cause a ThreadInterruptedException to be thrown in the target thread. If the thread is not in the WaitSleepJoin state, the exception is not thrown until the thread enters that state. If the thread never blocks, it could complete without ever being interrupted.

ThreadInterruptedException uses the HRESULT COR_E_THREADINTERRUPTED, which has the value 0x80131519.

For a list of initial property values for an instance of ThreadInterruptedException, see the ThreadInterruptedException constructors.

Gets a collection of key/value pairs that provide additional user-defined information about the exception.

Gets or sets a link to the help file associated with this exception.

Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

Gets the Exception instance that caused the current exception.

Gets a message that describes the current exception.

Gets or sets the name of the application or the object that causes the error.

Gets a string representation of the immediate frames on the call stack.

Gets the method that throws the current exception.

Obsolete.

Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

• Thread
• ThreadState
• Pausing and Resuming Threads

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