Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you the functional analysis of how to carry out VB.NET monitoring. The article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article.

The VB.NET programming language is powerful and supports all the features of the class. Each class implements different functions, and at the same time it can bring us a lot of new experiences. For example, the VB.NET monitoring class can help us achieve multi-thread synchronization and help us improve programming efficiency.

In VB.NET multithreaded development, it is important to call the same function synchronously between threads. Consider that you have a function for writing files. If multiple threads call this function at the same time, it will definitely throw an exception before one thread finishes the operation. To avoid this, you can use the VB.NET monitoring class Monitor.

Introduce the following namespace in our example:

System System.Threading System.IO System.Text

Use the Enter and Exit methods of the VB.NET monitor class to make synchronous calls to the method. The following shows how to do this:

Monitor.Enter (Me) Dim fs As FileStream = New FileStream ("C:\ Temp\ SyncTest.txt", FileMode.Append) Dim t As ThreadThread = Thread.CurrentThread fs.Write (Encoding.ASCII.GetBytes (t.Name & vbCrLf), 0, t.Name.Length + 2) Dim i As Integer For i = 0 To 10000 fs.Write (Encoding.ASCII.GetBytes (I & ","), 0, i.ToString (). Length + 1) Next fs.Close () Monitor.Exit (Me)

At the beginning of the code written to the file, we call the Monitor.Enter method. Once the write operation is complete, we call the Monitor.Exit method. This ensures that when one thread calls this function, other threads cannot call the same function. You can easily check what happens when you don't use VB.NET monitoring classes by commenting out these two lines of code.

The above is the analysis of the functions of the VB.NET monitoring class shared by the editor. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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