ThreadPool.GetAvailableThreads(Int32, Int32) 方法

定義

命名空間:
System.Threading
組件:
mscorlib.dll
組件:
netstandard.dll

取回方法回傳 GetMaxThreads(Int32, Int32) 的最大執行緒池執行緒數與當前啟用執行緒數之間的差額。

public:
 static void GetAvailableThreads([Runtime::InteropServices::Out] int % workerThreads, [Runtime::InteropServices::Out] int % completionPortThreads);
public static void GetAvailableThreads(out int workerThreads, out int completionPortThreads);
static member GetAvailableThreads : int * int -> unit
Public Shared Sub GetAvailableThreads (ByRef workerThreads As Integer, ByRef completionPortThreads As Integer)

參數

workerThreads
Int32

可用的工作執行緒數量。

completionPortThreads
Int32

可用的非同步 I/O 執行緒數量。

範例

以下範例顯示啟動簡單應用程式時可用的工作執行緒與輸入輸出執行緒數量。

using System;
using System.Threading;

public class Example
{
   public static void Main()
   {
      int worker = 0;
      int io = 0;
      ThreadPool.GetAvailableThreads(out worker, out io);
      
      Console.WriteLine("Thread pool threads available at startup: ");
      Console.WriteLine("   Worker threads: {0:N0}", worker);
      Console.WriteLine("   Asynchronous I/O threads: {0:N0}", io);
   }
}
// The example displays output like the following:
//    Thread pool threads available at startup:
//       Worker threads: 32,767
//       Asynchronous I/O threads: 1,000

Imports System.Threading

 Module Example
   Public Sub Main()
      Dim worker As Integer = 0
      Dim io As Integer = 0
      ThreadPool.GetAvailableThreads(worker, io)
      
      Console.WriteLine("Thread pool threads available at startup: ")
      Console.WriteLine("   Worker threads: {0:N0}", worker)
      Console.WriteLine("   Asynchronous I/O threads: {0:N0}", io)
   End Sub
End Module
' The example displays output like the following:
'    Thread pool threads available at startup:
'       Worker threads: 32,767
'       Asynchronous I/O threads: 1,000

備註

當 GetAvailableThreads 返回時，指定 的 workerThreads 變數包含可啟動的額外工作執行緒數量，而指定為 的 completionPortThreads 變數則包含可啟動的額外非同步 I/O 執行緒數量。

若無可用執行緒，則額外的執行緒池請求會保留在排隊狀態，直到執行緒池執行緒可用。

適用於

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