本文整理汇总了VB.NET中System.Threading.Semaphore.Release方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Semaphore.Release方法的具体用法？VB.NET Semaphore.Release怎么用？VB.NET Semaphore.Release使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Threading.Semaphore的用法示例。
在下文中一共展示了Semaphore.Release方法的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，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Example
' 导入命名空间
Imports System.Threading
Public Class Example
' A semaphore that simulates a limited resource pool.
'
Private Shared _pool As Semaphore
' A padding interval to make the output more orderly.
Private Shared _padding As Integer
<MTAThread> _
Public Shared Sub Main()
' Create a semaphore that can satisfy up to three
' concurrent requests. Use an initial count of zero,
' so that the entire semaphore count is initially
' owned by the main program thread.
'
_pool = New Semaphore(0, 3)
' Create and start five numbered threads.
'
For i As Integer = 1 To 5
Dim t As New Thread(New ParameterizedThreadStart(AddressOf Worker))
'Dim t As New Thread(AddressOf Worker)
' Start the thread, passing the number.
'
t.Start(i)
Next i
' Wait for half a second, to allow all the
' threads to start and to block on the semaphore.
'
Thread.Sleep(500)
' The main thread starts out holding the entire
' semaphore count. Calling Release(3) brings the
' semaphore count back to its maximum value, and
' allows the waiting threads to enter the semaphore,
' up to three at a time.
'
Console.WriteLine("Main thread calls Release(3).")
_pool.Release(3)
Console.WriteLine("Main thread exits.")
End Sub
Private Shared Sub Worker(ByVal num As Object)
' Each worker thread begins by requesting the
' semaphore.
Console.WriteLine("Thread {0} begins " _
& "and waits for the semaphore.", num)
_pool.WaitOne()
' A padding interval to make the output more orderly.
Dim padding As Integer = Interlocked.Add(_padding, 100)
Console.WriteLine("Thread {0} enters the semaphore.", num)
' The thread's "work" consists of sleeping for
' about a second. Each thread "works" a little
' longer, just to make the output more orderly.
'
Thread.Sleep(1000 + padding)
Console.WriteLine("Thread {0} releases the semaphore.", num)
Console.WriteLine("Thread {0} previous semaphore count: {1}", _
num, _
_pool.Release())
End Sub
End Class