Class InterruptMonitor
Class InterruptMonitor
Der Name: Aspose.Imaging.Multithreading Versammlung: Aspose.Imaging.dll (25.4.0)
Informationen über die Unterbrechung.
public class InterruptMonitor : IInterruptMonitorInheritance
Implements
Vererbte Mitglieder
object.GetType() , object.MemberwiseClone() , object.ToString() , object.Equals(object?) , object.Equals(object?, object?) , object.ReferenceEquals(object?, object?) , object.GetHashCode()
Examples
Das folgende Beispiel zeigt, wie man die Bildkonvertierung in einem dedizierten Faden durchführt und den Prozess innerhalb von ein paar Sekunden nach Beginn unterbricht.
/// <summary>
/// This is helper class which initiates image conversion and waits for its interruption.
/// </summary>
private class Worker
{
/// <summary>
/// The path to the input image.
/// </summary>
private readonly string inputPath;
/// <summary>
/// The path to the output image.
/// </summary>
private readonly string outputPath;
/// <summary>
/// The save options.
/// </summary>
private readonly Aspose.Imaging.ImageOptionsBase saveOptions;
/// <summary>
/// The interrupt monitor.
/// </summary>
private readonly Aspose.Imaging.Multithreading.InterruptMonitor monitor;
/// <summary>
/// Initializes a new instance of the <see cref="Worker"></see> class.
/// </summary>
/// <param name="inputPath"/>The path to the input image.
/// <param name="outputPath"/>The path to the output image.
/// <param name="saveOptions"/>The save options.
/// <param name="monitor"/>The interrupt monitor.
public Worker(string inputPath, string outputPath, Aspose.Imaging.ImageOptionsBase saveOptions, Aspose.Imaging.Multithreading.InterruptMonitor monitor)
{
this.inputPath = inputPath;
this.outputPath = outputPath;
this.saveOptions = saveOptions;
this.monitor = monitor;
}
/// <summary>
/// Converts an image from one format to another. Handles interruption.
/// </summary>
public void ThreadProc()
{
try
{
Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(this.inputPath);
// Set a thread-local instance of the interrupt monitor.
Aspose.Imaging.Multithreading.InterruptMonitor.ThreadLocalInstance = this.monitor;
try
{
image.Save(this.outputPath, this.saveOptions);
}
catch (Aspose.Imaging.CoreExceptions.OperationInterruptedException e)
{
System.Console.WriteLine(
"The worker thread #{0} has been interrupted at {1}",
System.Threading.Thread.CurrentThread.ManagedThreadId,
System.DateTime.Now);
}
finally
{
image.Dispose();
// Reset the thread-local instance of the interrupt monitor.
Aspose.Imaging.Multithreading.InterruptMonitor.ThreadLocalInstance = null;
}
}
catch (System.Exception e)
{
// Print detailed information about any unexpected exception.
System.Console.WriteLine(e);
}
}
}
// Here is the main example using the Worker class.
string baseDir = "c:\\temp\\";
Aspose.Imaging.Multithreading.InterruptMonitor monitor = new Aspose.Imaging.Multithreading.InterruptMonitor();
Worker worker = new Worker(baseDir + "big.png", baseDir + "big.bmp", new Aspose.Imaging.ImageOptions.BmpOptions(), monitor);
// Start the worker in a dedicated thread.
System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(worker.ThreadProc));
thread.Start();
// Do some meaningful work here
System.Threading.Thread.Sleep(2000);
// Request to interrupt the worker thread
monitor.Interrupt();
System.Console.WriteLine("Interrupting the worker thread #{0} at {1}", thread.ManagedThreadId, System.DateTime.Now);
// Wait for interruption.
thread.Join();
System.Console.WriteLine("Done. Press ENTER to exit.");
System.Console.ReadLine();
// The output may look like this:
// Interrupting the worker thread #14 at 8/6/2019 3:57:53 PM
// The worker thread #14 has been interrupted at 8/6/2019 3:58:09 PM
// Done. Press ENTER to exit.Constructors
InterruptMonitor()
public InterruptMonitor()Properties
IsInterrupted
Er erhält den Wert, der darauf hindeutet, ob die Operationen unterbrochen werden sollten.
public virtual bool IsInterrupted { get; }Eigentumswert
ThreadLocalInstance
Gibt oder setzt die IInterruptMonitor-Instanz, die für jeden thread einzigartig ist.
public static IInterruptMonitor ThreadLocalInstance { get; set; }Eigentumswert
Methods
Interrupt()
Senden Sie eine Anforderung, die Operationen zu unterbrechen.
public virtual void Interrupt()Examples
Das folgende Beispiel zeigt, wie man die Bildkonvertierung in einem dedizierten Faden durchführt und den Prozess innerhalb von ein paar Sekunden nach Beginn unterbricht.
/// <summary>
/// This is helper class which initiates image conversion and waits for its interruption.
/// </summary>
private class Worker
{
/// <summary>
/// The path to the input image.
/// </summary>
private readonly string inputPath;
/// <summary>
/// The path to the output image.
/// </summary>
private readonly string outputPath;
/// <summary>
/// The save options.
/// </summary>
private readonly Aspose.Imaging.ImageOptionsBase saveOptions;
/// <summary>
/// The interrupt monitor.
/// </summary>
private readonly Aspose.Imaging.Multithreading.InterruptMonitor monitor;
/// <summary>
/// Initializes a new instance of the <see cref="Worker"></see> class.
/// </summary>
/// <param name="inputPath"/>The path to the input image.
/// <param name="outputPath"/>The path to the output image.
/// <param name="saveOptions"/>The save options.
/// <param name="monitor"/>The interrupt monitor.
public Worker(string inputPath, string outputPath, Aspose.Imaging.ImageOptionsBase saveOptions, Aspose.Imaging.Multithreading.InterruptMonitor monitor)
{
this.inputPath = inputPath;
this.outputPath = outputPath;
this.saveOptions = saveOptions;
this.monitor = monitor;
}
/// <summary>
/// Converts an image from one format to another. Handles interruption.
/// </summary>
public void ThreadProc()
{
try
{
Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(this.inputPath);
// Set a thread-local instance of the interrupt monitor.
Aspose.Imaging.Multithreading.InterruptMonitor.ThreadLocalInstance = this.monitor;
try
{
image.Save(this.outputPath, this.saveOptions);
}
catch (Aspose.Imaging.CoreExceptions.OperationInterruptedException e)
{
System.Console.WriteLine(
"The worker thread #{0} has been interrupted at {1}",
System.Threading.Thread.CurrentThread.ManagedThreadId,
System.DateTime.Now);
}
finally
{
image.Dispose();
// Reset the thread-local instance of the interrupt monitor.
Aspose.Imaging.Multithreading.InterruptMonitor.ThreadLocalInstance = null;
}
}
catch (System.Exception e)
{
// Print detailed information about any unexpected exception.
System.Console.WriteLine(e);
}
}
}
// Here is the main example using the Worker class.
string baseDir = "c:\\temp\\";
Aspose.Imaging.Multithreading.InterruptMonitor monitor = new Aspose.Imaging.Multithreading.InterruptMonitor();
Worker worker = new Worker(baseDir + "big.png", baseDir + "big.bmp", new Aspose.Imaging.ImageOptions.BmpOptions(), monitor);
// Start the worker in a dedicated thread.
System.Threading.Thread thread = new System.Threading.Thread(new System.Threading.ThreadStart(worker.ThreadProc));
thread.Start();
// Do some meaningful work here
System.Threading.Thread.Sleep(2000);
// Request to interrupt the worker thread
monitor.Interrupt();
System.Console.WriteLine("Interrupting the worker thread #{0} at {1}", thread.ManagedThreadId, System.DateTime.Now);
// Wait for interruption.
thread.Join();
System.Console.WriteLine("Done. Press ENTER to exit.");
System.Console.ReadLine();
// The output may look like this:
// Interrupting the worker thread #14 at 8/6/2019 3:57:53 PM
// The worker thread #14 has been interrupted at 8/6/2019 3:58:09 PM
// Done. Press ENTER to exit.