Volatile C#（對於開發者的運行原理）

using System;
using System.Threading;

public class Worker
{
    private volatile bool _shouldStop;

    // Method run by a separate thread to perform work until _shouldStop is set to true
    public void DoWork()
    {
        while (!_shouldStop)
        {
            Console.WriteLine("Worker thread is running...");
            Thread.Sleep(500); // Simulates work being done
        }
        Console.WriteLine("Worker thread has been stopped.");
    }

    // Method to request stopping the work by setting _shouldStop to true
    public void RequestStop()
    {
        _shouldStop = true;
    }

    // Main method to start the worker and stop it after some time
    static void Main()
    {
        Worker worker = new Worker();
        Thread newThread = new Thread(worker.DoWork);
        newThread.Start();
        Thread.Sleep(1000); // Allow the worker to run for a while
        worker.RequestStop();
        newThread.Join();   // Wait for the worker thread to finish
    }
}

Imports System
Imports System.Threading

Public Class Worker
'INSTANT VB TODO TASK: There is no VB equivalent to 'volatile':
'ORIGINAL LINE: private volatile bool _shouldStop;
	Private _shouldStop As Boolean

	' Method run by a separate thread to perform work until _shouldStop is set to true
	Public Sub DoWork()
		Do While Not _shouldStop
			Console.WriteLine("Worker thread is running...")
			Thread.Sleep(500) ' Simulates work being done
		Loop
		Console.WriteLine("Worker thread has been stopped.")
	End Sub

	' Method to request stopping the work by setting _shouldStop to true
	Public Sub RequestStop()
		_shouldStop = True
	End Sub

	' Main method to start the worker and stop it after some time
	Shared Sub Main()
		Dim worker As New Worker()
		Dim newThread As New Thread(AddressOf worker.DoWork)
		newThread.Start()
		Thread.Sleep(1000) ' Allow the worker to run for a while
		worker.RequestStop()
		newThread.Join() ' Wait for the worker thread to finish
	End Sub
End Class

using IronPdf;
using System;
using System.Threading;

public class PDFGenerator
{
    private volatile bool _isProcessing;

    // Generates a PDF if no other generation is currently in progress
    public void GeneratePDF()
    {
        if (!_isProcessing)
        {
            _isProcessing = true;
            try
            {
                var renderer = new ChromePdfRenderer();
                var PDF = renderer.RenderHtmlAsPdf("<h1>Hello, World!</h1>");
                PDF.SaveAs("example.pdf");
                Console.WriteLine("PDF generated successfully.");
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed to generate PDF: " + ex.Message);
            }
            finally
            {
                _isProcessing = false;
            }
        }
        else
        {
            Console.WriteLine("Generation in progress, please wait...");
        }
    }

    // Main method to start concurrent PDF generation
    static void Main()
    {
        License.LicenseKey = "License-Key"; // Replace with your actual License Key
        PDFGenerator generator = new PDFGenerator();
        Thread t1 = new Thread(generator.GeneratePDF);
        Thread t2 = new Thread(generator.GeneratePDF);
        t1.Start();
        t2.Start();
        t1.Join(); // Wait for thread t1 to finish
        t2.Join(); // Wait for thread t2 to finish
    }
}

Imports IronPdf
Imports System
Imports System.Threading

Public Class PDFGenerator
'INSTANT VB TODO TASK: There is no VB equivalent to 'volatile':
'ORIGINAL LINE: private volatile bool _isProcessing;
	Private _isProcessing As Boolean

	' Generates a PDF if no other generation is currently in progress
	Public Sub GeneratePDF()
		If Not _isProcessing Then
			_isProcessing = True
			Try
				Dim renderer = New ChromePdfRenderer()
				Dim PDF = renderer.RenderHtmlAsPdf("<h1>Hello, World!</h1>")
				PDF.SaveAs("example.pdf")
				Console.WriteLine("PDF generated successfully.")
			Catch ex As Exception
				Console.WriteLine("Failed to generate PDF: " & ex.Message)
			Finally
				_isProcessing = False
			End Try
		Else
			Console.WriteLine("Generation in progress, please wait...")
		End If
	End Sub

	' Main method to start concurrent PDF generation
	Shared Sub Main()
		License.LicenseKey = "License-Key" ' Replace with your actual License Key
		Dim generator As New PDFGenerator()
		Dim t1 As New Thread(AddressOf generator.GeneratePDF)
		Dim t2 As New Thread(AddressOf generator.GeneratePDF)
		t1.Start()
		t2.Start()
		t1.Join() ' Wait for thread t1 to finish
		t2.Join() ' Wait for thread t2 to finish
	End Sub
End Class