本文整理匯總了VB.NET中System.Threading.Mutex類的典型用法代碼示例。如果您正苦於以下問題：VB.NET Mutex類的具體用法？VB.NET Mutex怎麽用？VB.NET Mutex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Mutex類的2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: Example
' 導入命名空間
Imports System.Threading
Module Example
' Create a new Mutex. The creating thread does not own the mutex.
Private mut As New Mutex()
Private Const numIterations As Integer = 1
Private Const numThreads As Integer = 3
Public Sub Main()
' Create the threads that will use the protected resource.
For i As Integer = 0 To numThreads - 1
Dim newThread As New Thread(AddressOf ThreadProc)
newThread.Name = String.Format("Thread{0}", i + 1)
newThread.Start()
Next
' The main thread exits, but the application continues to
' run until all foreground threads have exited.
End Sub
Private Sub ThreadProc()
For i As Integer = 0 To numIterations - 1
UseResource()
Next
End Sub
' This method represents a resource that must be synchronized
' so that only one thread at a time can enter.
Private Sub UseResource()
' Wait until it is safe to enter.
Console.WriteLine("{0} is requesting the mutex",
Thread.CurrentThread.Name)
mut.WaitOne()
Console.WriteLine("{0} has entered the protected area",
Thread.CurrentThread.Name)
' Place code to access non-reentrant resources here.
' Simulate some work.
Thread.Sleep(500)
Console.WriteLine("{0} is leaving the protected area",
Thread.CurrentThread.Name)
' Release the Mutex.
mut.ReleaseMutex()
Console.WriteLine("{0} has released the mutex",
Thread.CurrentThread.Name)
End Sub
End Module輸出：
Thread1 is requesting the mutex Thread2 is requesting the mutex Thread1 has entered the protected area Thread3 is requesting the mutex Thread1 is leaving the protected area Thread1 has released the mutex Thread3 has entered the protected area Thread3 is leaving the protected area Thread3 has released the mutex Thread2 has entered the protected area Thread2 is leaving the protected area Thread2 has released the mutex
示例2: Example
' 導入命名空間
Imports System.Threading
Class Example
' Create a new Mutex. The creating thread does not own the mutex.
Private mut As New Mutex()
Private Const numIterations As Integer = 1
Private Const numThreads As Integer = 3
Public Shared Sub Main()
Dim ex As New Example()
ex.StartThreads()
End Sub
Private Sub StartThreads()
' Create the threads that will use the protected resource.
For i As Integer = 0 To numThreads - 1
Dim newThread As New Thread(AddressOf ThreadProc)
newThread.Name = String.Format("Thread{0}", i + 1)
newThread.Start()
Next
' The main thread returns to Main and exits, but the application continues to
' run until all foreground threads have exited.
End Sub
Private Sub ThreadProc()
For i As Integer = 0 To numIterations - 1
UseResource()
Next
End Sub
' This method represents a resource that must be synchronized
' so that only one thread at a time can enter.
Private Sub UseResource()
' Wait until it is safe to enter.
Console.WriteLine("{0} is requesting the mutex",
Thread.CurrentThread.Name)
If mut.WaitOne(1000) Then
Console.WriteLine("{0} has entered the protected area",
Thread.CurrentThread.Name)
' Place code to access non-reentrant resources here.
' Simulate some work.
Thread.Sleep(5000)
Console.WriteLine("{0} is leaving the protected area",
Thread.CurrentThread.Name)
' Release the Mutex.
mut.ReleaseMutex()
Console.WriteLine("{0} has released the mutex",
Thread.CurrentThread.Name)
Else
Console.WriteLine("{0} will not acquire the mutex",
Thread.CurrentThread.Name)
End If
End Sub
Protected Overrides Sub Finalize()
mut.Dispose()
End Sub
End Class輸出：
Thread1 is requesting the mutex Thread1 has entered the protected area Thread2 is requesting the mutex Thread3 is requesting the mutex Thread2 will not acquire the mutex Thread3 will not acquire the mutex Thread1 is leaving the protected area Thread1 has released the mutex