Timeout クラス

定義

無限タイムアウト間隔を指定する定数を格納します。Contains constants that specify infinite time-out intervals. このクラスは継承できません。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
継承
Timeout
属性

次の例では、スレッドが無期限にスリープ状態になり、その後ウェイクアップされることを示しています。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

注釈

このクラスのメンバーは、スレッド処理操作でタイムアウト間隔を無制限に指定するために使用されます。The members of this class are used to specify infinite time-out intervals in threading operations. InfinitemillisecondsTimeoutThread.Sleep(Int32)、、 Thread.Join(Int32) 、などの整数パラメーターを受け取るメソッドによって使用ReaderWriterLock.AcquireReaderLock(Int32)されます。Infinite is used by methods that accept an integer millisecondsTimeout parameter, such as Thread.Sleep(Int32), Thread.Join(Int32), and ReaderWriterLock.AcquireReaderLock(Int32). InfiniteTimeSpantimeoutは、型TimeSpanのパラメーターを受け取るメソッド ( Thread.Sleep(TimeSpan)Thread.Join(TimeSpan)、などReaderWriterLock.AcquireReaderLock(TimeSpan)) によって使用されます。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).

フィールド

Infinite

Int32 パラメーターを許可するスレッド メソッドに、無期限の待機期間を指定するために使用される定数。A constant used to specify an infinite waiting period, for threading methods that accept an Int32 parameter.

InfiniteTimeSpan

TimeSpan パラメーターを許可するメソッドに、無期限の待機期間を指定するために使用される定数。A constant used to specify an infinite waiting period, for methods that accept a TimeSpan parameter.

適用対象

スレッド セーフ

この型はスレッド セーフです。This type is thread safe.

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