Interrupt save operation hanging

The ‘InterruptMonitor’ class provides the capability to interrupt the document saving process if it takes too long. (https://reference.aspose.com/pdf/net/aspose.pdf.forms/form/properties/xfa) .

The following code snippet also work with Aspose.PDF.Drawing library.

Using InterruptMonitor

Let us highlight that the implementation involves several key steps:

  1. InterruptMonitor Creation: Instantiate an InterruptMonitor object. This object acts as a signal for thread interruption.

  2. ThreadLocalInstance Assignment: Before initiating the long-running Aspose.PDF operation, assign the InterruptMonitor instance to InterruptMonitor.ThreadLocalInstance for the current thread. This links the monitor to the thread.

  3. Thread Execution: Execute the code containing the Aspose.PDF operation (e.g., Document.Save()) within a separate thread.

  4. Interruption Signal: At a suitable point (e.g., after a timeout or user action), call monitor.Interrupt(). This signals the thread to terminate.

  5. Exception Handling: The Document.Save() method throws an OperationCanceledException if interrupted. Handle this exception using a try-catch block. Remember that proper exception handling is crucial for application stability.

The following code snippet shows you how to use InterruptMonitor in PDF processing.