VB.NET SemaphoreFullException类代码示例

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本文整理汇总了VB.NET中System.Threading.SemaphoreFullException类的典型用法代码示例。如果您正苦于以下问题：VB.NET SemaphoreFullException类的具体用法？VB.NET SemaphoreFullException怎么用？VB.NET SemaphoreFullException使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了SemaphoreFullException类的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。

示例1: Main

' 导入命名空间
Imports System.Threading

Public Class Example

    ' A semaphore that can satisfy at most two concurrent
    ' requests.
    '
    Private Shared _pool As New Semaphore(2, 2)

    <MTAThread> _
    Public Shared Sub Main()
        ' Create and start two threads, A and B. 
        '
        Dim tA As New Thread(AddressOf ThreadA)
        tA.Start()

        Dim tB As New Thread(AddressOf ThreadB)
        tB.Start()

    End Sub

    Private Shared Sub ThreadA()
        ' Thread A enters the semaphore and simulates a task
        ' that lasts a second.
        '
        _pool.WaitOne()
        Console.WriteLine("Thread A entered the semaphore.")

        Thread.Sleep(1000)

        Try
            _pool.Release()
            Console.WriteLine("Thread A released the semaphore.")
        Catch ex As Exception
            Console.WriteLine("Thread A: {0}", ex.Message)
        End Try
    End Sub

    Private Shared Sub ThreadB()
        ' Thread B simulates a task that lasts half a second,
        ' then enters the semaphore.
        '
        Thread.Sleep(500)

        _pool.WaitOne()
        Console.WriteLine("Thread B entered the semaphore.")
        
        ' Due to a programming error, Thread B releases the
        ' semaphore twice. To fix the program, delete one line.
        _pool.Release()
        _pool.Release()
        Console.WriteLine("Thread B exits successfully.")
    End Sub
End Class

开发者ID:VB.NET开发者，项目名称:System.Threading，代码行数:55，代码来源:SemaphoreFullException

输出：

Thread A entered the semaphore.
Thread B entered the semaphore.
Thread B exits successfully.
Thread A: Adding the given count to the semaphore would cause it to exceed its maximum count.

注：本文中的System.Threading.SemaphoreFullException类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。