How can I cancel a conversion if it hangs? I use the GroupDocs.Conversion.Converter.Convert method to convert a dfx-file to a PDF. However, the process has been hanging for over 20 minutes and I would like to abort it using code. Is there a way to cancel the process after a certain time, for example with a cancellation token? Or is there also an asynchronous method?
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Please share following details and we’ll investigate this scenario:
- API version that you are evaluating (e.g. 19.10, 20.3)
- Sample code your wrote for the conversion process
- For what document type conversion process hangs
- Sample/problematic documents
Details test scenario:
API version: 20.4.0
Test project type: ASP.NET Web Application (.NET Framework 4.7.2, Visual Basic)
Test code snippet (Visual Basic):
Imports System.Web.Http
Imports GroupDocs.Conversion
Imports GroupDocs.Conversion.Options.Convert
Public Class TestController
Inherits ApiController
<HttpGet> Public Function GetTestConvertToPdf(sourceFileName As String) As Byte()
Using sourceStream As New IO.FileStream(sourceFileName, IO.FileMode.Open)
Using converter = New Converter(Function() sourceStream)
Dim convertOptions = New PdfConvertOptions
Using outputStream As New IO.MemoryStream
converter.Convert(Function() outputStream, convertOptions)
Return outputStream.ToArray
End Using
End Using
End Using
End Function
End Class
Document type: dxf to pdf
Sample/problematic documents: I can’t share this documents because it contains personal data.
But the real question is not why the process hangs, but how I can cancel a conversion process.
I’m looking for a solution like this:
Dim cts = New Threading.CancellationTokenSource
cts.CancelAfter(New TimeSpan(0, 1, 0))
Await converter.ConvertAsync(Function() outputStream, convertOptions, cts.Token)
But there is no async method available.
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Thanks for the details. We have logged this scenario as an investigation in our internal issue tracking system with ID CONVERSIONNET-3882. As there’s any update, you’ll be notified.
Is there any news about this?
API doesn’t support any kind of thread management and cancellation at the moment.
I know that this support doesn’t exist at the moment. But is there any support in the future?