Timeout Timeout Timeout Timeout Class

Definition

Enthält Konstanten, die unendliche Timeoutintervalle angeben.Contains constants that specify infinite time-out intervals. Diese Klasse kann nicht vererbt werden.This class cannot be inherited.

public ref class Timeout abstract sealed
[System.Runtime.InteropServices.ComVisible(true)]
public static class Timeout
type Timeout = class
Public Class Timeout
Vererbung
TimeoutTimeoutTimeoutTimeout
Attribute

Beispiele

Im folgenden Beispiel wird gezeigt, wie ein Thread für eine unbegrenzte Zeit in den Standbymodus wechselt und anschließend reaktiviert wird.The following example shows a thread going to sleep for an infinite time and subsequently being woken up.

using namespace System;
using namespace System::Security::Permissions;
using namespace System::Threading;

ref class StayAwake
{
private:
   bool sleepSwitch;

public:

   property bool SleepSwitch 
   {
      void set( bool value )
      {
         sleepSwitch = value;
      }

   }
   StayAwake()
   {
      sleepSwitch = false;
   }

   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." );
      }

   }

};

int main()
{
   StayAwake^ stayAwake = gcnew StayAwake;
   Thread^ newThread = gcnew Thread( gcnew ThreadStart( stayAwake, &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." );
   
   // Then tell newThread to go to sleep.
   stayAwake->SleepSwitch = true;
   
   // Wait for newThread to end.
   newThread->Join();
}

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

Hinweise

Die Member dieser Klasse werden verwendet, um unendliche Timeout Intervalle in Threading Vorgängen anzugeben.The members of this class are used to specify infinite time-out intervals in threading operations. Infinitewird von Methoden verwendet, die einen ganzzahligen millisecondsTimeout Parameter akzeptieren, Thread.Join(Int32) Thread.Sleep(Int32)z. ReaderWriterLock.AcquireReaderLock(Int32)b., und.Infinite is used by methods that accept an integer millisecondsTimeout parameter, such as Thread.Sleep(Int32), Thread.Join(Int32), and ReaderWriterLock.AcquireReaderLock(Int32). InfiniteTimeSpanwird von Methoden verwendet, die einen timeout Parameter vom Typ TimeSpanakzeptieren, z Thread.Sleep(TimeSpan) Thread.Join(TimeSpan). b. ReaderWriterLock.AcquireReaderLock(TimeSpan), und.InfiniteTimeSpan is used by methods that accept a timeout parameter of type TimeSpan, such as Thread.Sleep(TimeSpan), Thread.Join(TimeSpan), and ReaderWriterLock.AcquireReaderLock(TimeSpan).

Felder

Infinite Infinite Infinite Infinite

Eine Konstante, mit der eine unbegrenzte Wartezeit angegeben wird, für Threading-Methoden, die einen Int32-Parameter akzeptieren.A constant used to specify an infinite waiting period, for threading methods that accept an Int32 parameter.

InfiniteTimeSpan InfiniteTimeSpan InfiniteTimeSpan InfiniteTimeSpan

Eine Konstante, mit der eine unbegrenzte Wartezeit für Methoden anzugeben, die einen TimeSpan-Parameter akzeptieren.A constant used to specify an infinite waiting period, for methods that accept a TimeSpan parameter.

Gilt für:

Threadsicherheit

Dieser Typ ist threadsicher.This type is thread safe.

Siehe auch