Thread.IsThreadPoolThread 屬性

定義

命名空間:

System.Threading

組件:

System.Threading.Thread.dll

組件:

netstandard.dll

組件:

mscorlib.dll

取得值，指出執行緒是否屬於 Managed 執行緒集區。

public:
 property bool IsThreadPoolThread { bool get(); };

public bool IsThreadPoolThread { get; }

member this.IsThreadPoolThread : bool

Public ReadOnly Property IsThreadPoolThread As Boolean

屬性值

Boolean

true，表示這個執行緒屬於 Managed 執行緒集區，否則為 false。

範例

下列程式碼範例顯示如何判斷線程是否來自執行緒集區。

using namespace System;
using namespace System::Threading;
ref class IsThreadPool
{
public:

   static void ThreadMethod()
   {
      Console::WriteLine( "ThreadOne, executing ThreadMethod, "
      "is {0}from the thread pool.", Thread::CurrentThread->IsThreadPoolThread ? (String^)"" : "not " );
   }


   static void WorkMethod( Object^ stateInfo )
   {
      Console::WriteLine( "ThreadTwo, executing WorkMethod, "
      "is {0}from the thread pool.", Thread::CurrentThread->IsThreadPoolThread ? (String^)"" : "not " );
      
      // Signal that this thread is finished.
      dynamic_cast<AutoResetEvent^>(stateInfo)->Set();
   }

};

int main()
{
   AutoResetEvent^ autoEvent = gcnew AutoResetEvent( false );
   Thread^ regularThread = gcnew Thread( gcnew ThreadStart( &IsThreadPool::ThreadMethod ) );
   regularThread->Start();
   ThreadPool::QueueUserWorkItem( gcnew WaitCallback( &IsThreadPool::WorkMethod ), autoEvent );
   
   // Wait for foreground thread to end.
   regularThread->Join();
   
   // Wait for background thread to end.
   autoEvent->WaitOne();
}

using System;
using System.Threading;

class IsThreadPool
{
    static void Main()
    {
        AutoResetEvent autoEvent = new AutoResetEvent(false);

        Thread regularThread = 
            new Thread(new ThreadStart(ThreadMethod));
        regularThread.Start();
        ThreadPool.QueueUserWorkItem(new WaitCallback(WorkMethod), 
            autoEvent);

        // Wait for foreground thread to end.
        regularThread.Join();

        // Wait for background thread to end.
        autoEvent.WaitOne();
    }

    static void ThreadMethod()
    {
        Console.WriteLine("ThreadOne, executing ThreadMethod, " +
            "is {0}from the thread pool.", 
            Thread.CurrentThread.IsThreadPoolThread ? "" : "not ");
    }

    static void WorkMethod(object stateInfo)
    {
        Console.WriteLine("ThreadTwo, executing WorkMethod, " +
            "is {0}from the thread pool.", 
            Thread.CurrentThread.IsThreadPoolThread ? "" : "not ");

        // Signal that this thread is finished.
        ((AutoResetEvent)stateInfo).Set();
    }
}

Option Explicit
Option Strict

Imports System.Threading

Public Class IsThreadPool

    <MTAThread> _
    Shared Sub Main()
        Dim autoEvent As New AutoResetEvent(False)

        Dim regularThread As New Thread(AddressOf ThreadMethod)
        regularThread.Start()
        ThreadPool.QueueUserWorkItem(AddressOf WorkMethod, autoEvent)

        ' Wait for foreground thread to end.
        regularThread.Join()

        ' Wait for background thread to end.
        autoEvent.WaitOne()
    End Sub

    Shared Sub ThreadMethod()
        Console.WriteLine("ThreadOne, executing ThreadMethod, " & _
            "is from the thread pool? {0}", _
            Thread.CurrentThread.IsThreadPoolThread)
    End Sub

    Shared Sub WorkMethod(stateInfo As Object)
        Console.WriteLine("ThreadTwo, executing WorkMethod, " & _
            "is from the thread pool? {0}", _
            Thread.CurrentThread.IsThreadPoolThread)

        ' Signal that this thread is finished.
        DirectCast(stateInfo, AutoResetEvent).Set()
    End Sub

End Class

備註

如需詳細資訊，請參閱 managed 執行緒集區。

另請參閱

• ThreadPool
• Managed 執行緒集區