本文整理匯總了VB.NET中System.Threading.ThreadLocal<T>類的典型用法代碼示例。如果您正苦於以下問題：VB.NET ThreadLocal<T>類的具體用法？VB.NET ThreadLocal<T>怎麽用？VB.NET ThreadLocal<T>使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了ThreadLocal<T>類的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: ThreadLocalDemo
' 導入命名空間
Imports System.Threading
Imports System.Threading.Tasks
Module ThreadLocalDemo
' Demonstrates:
' ThreadLocal(T) constructor
' ThreadLocal(T).Value
' One usage of ThreadLocal(T)
Sub Main()
' Thread-Local variable that yields a name for a thread
Dim ThreadName As New ThreadLocal(Of String)(
Function()
Return "Thread" & Thread.CurrentThread.ManagedThreadId
End Function)
' Action that prints out ThreadName for the current thread
Dim action As Action =
Sub()
' If ThreadName.IsValueCreated is true, it means that we are not the
' first action to run on this thread.
Dim repeat As Boolean = ThreadName.IsValueCreated
Console.WriteLine("ThreadName = {0} {1}", ThreadName.Value, If(repeat, "(repeat)", ""))
End Sub
' Launch eight of them. On 4 cores or less, you should see some repeat ThreadNames
Parallel.Invoke(action, action, action, action, action, action, action, action)
' Dispose when you are done
ThreadName.Dispose()
End Sub
End Module
' This multithreading example can produce different outputs for each 'action' invocation and will vary with each run.
' Therefore, the example output will resemble but may not exactly match the following output (from a 4 core processor):
' ThreadName = Thread5
' ThreadName = Thread6
' ThreadName = Thread4
' ThreadName = Thread6 (repeat)
' ThreadName = Thread1
' ThreadName = Thread4 (repeat)
' ThreadName = Thread7
' ThreadName = Thread5 (repeat)