Thread.Interrupt 方法

定义

命名空间:

System.Threading

程序集:

System.Threading.Thread.dll

程序集:

netstandard.dll

程序集:

mscorlib.dll

中断处于 WaitSleepJoin 线程状态的线程。

C#

public void Interrupt ();

例外

SecurityException

调用方没有适当的 SecurityPermission。

示例

下面的代码示例演示正在运行的线程在中断并随后被阻止时的行为。

C#

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.");
        }
    }
}

注解

如果当前未在等待、睡眠或联接状态中阻止此线程，则下次开始阻塞时，该线程将中断。

ThreadInterruptedException 在中断的线程中引发，但直到线程阻塞。 如果线程从不阻塞，则永远不会引发异常，因此线程可能会完成，而不会中断。

适用于

另请参阅

• ThreadState
• 暂停和中断线程