Thread.IsThreadPoolThread Eigenschaft
Definition
Wichtig
Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.
Ruft einen Wert ab, der angibt, ob ein Thread zum verwalteten Threadpool gehört.
public:
property bool IsThreadPoolThread { bool get(); };
public bool IsThreadPoolThread { get; }
member this.IsThreadPoolThread : bool
Public ReadOnly Property IsThreadPoolThread As Boolean
Eigenschaftswert
truewenn dieser Thread zum verwalteten Threadpool gehört; andernfalls . false
Beispiele
Das folgende Codebeispiel zeigt, wie Sie bestimmen können, ob ein Thread aus dem Threadpool stammt.
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();
}
}
open System.Threading
let threadMethod () =
printfn
$"""ThreadOne, executing ThreadMethod, is {if Thread.CurrentThread.IsThreadPoolThread then
""
else
"not "}from the thread pool."""
let workMethod stateInfo =
printfn
$"""ThreadTwo, executing WorkMethod, is {if Thread.CurrentThread.IsThreadPoolThread then
""
else
"not "}from the thread pool."""
// Signal that this thread is finished.
(unbox<AutoResetEvent> stateInfo).Set() |> ignore
let autoEvent = new AutoResetEvent false
let regularThread = Thread threadMethod
regularThread.Start()
ThreadPool.QueueUserWorkItem(workMethod, autoEvent) |> ignore
// Wait for foreground thread to end.
regularThread.Join()
// Wait for background thread to end.
autoEvent.WaitOne() |> ignore
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
Hinweise
Weitere Informationen finden Sie im verwalteten Threadpool.