Timeout 类

定义

命名空间:

System.Threading

程序集:

netstandard.dll, System.Runtime.dll

Source:

Timeout.cs

包含指定无限期超时间隔的常数。 此类不能被继承。

C#

public static class Timeout

继承

Object

Timeout

示例

以下示例显示了一个线程无限期进入睡眠状态，随后被唤醒。

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

此类的成员用于指定线程操作中的无限超时间隔。 Infinite 由接受整数 millisecondsTimeout 参数的方法（如 Thread.Sleep(Int32)、 Thread.Join(Int32)和 ReaderWriterLock.AcquireReaderLock(Int32)）使用。 InfiniteTimeSpan 由接受 timeout 类型 TimeSpan参数的方法使用，例如 Thread.Sleep(TimeSpan)、 Thread.Join(TimeSpan)和 ReaderWriterLock.AcquireReaderLock(TimeSpan)。

字段

Infinite	一个用于指定无限长等待时间的常数，适用于接受 Int32 参数的线程处理方法。
InfiniteTimeSpan	用于指定无限长等待时间的常数，接受 TimeSpan 参数的方法。

适用于

线程安全性

此类型是线程安全的。

另请参阅

• Thread
• 读取器/编写器锁