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Multithreading and Table.Height causing Access Violation issues

Last post 02-13-2012, 5:00 AM by Mudassir. 3 replies.
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  •  02-02-2012, 6:36 AM 358930

    Multithreading and Table.Height causing Access Violation issues .NET

    Attachment: Present (inaccessible)
    Hi,

    Again we are having trouble releasing our products due to issues with Aspose.

    below is the scenario, the same presentation generates fine in our single threaded client environment. but the batch generation which uses multi threading fails for the report and crashes and stop the batch generation .

    we used debug dias 1.2 and found out that the issue was caused by the following stack:

    NET Call Stack
    Function
    DomainBoundILStubClass.IL_STUB_PInvoke(System.Runtime.InteropServices.HandleRef, System.String, Int32, System.Runtime.InteropServices.HandleRef, System.Drawing.Internal.GPRECTF ByRef, System.Runtime.InteropServices.HandleRef, System.Drawing.Internal.GPRECTF ByRef, Int32 ByRef, Int32 ByRef)
    System.Drawing.SafeNativeMethods+Gdip.GdipMeasureString(System.Runtime.InteropServices.HandleRef, System.String, Int32, System.Runtime.InteropServices.HandleRef, System.Drawing.Internal.GPRECTF ByRef, System.Runtime.InteropServices.HandleRef, System.Drawing.Internal.GPRECTF ByRef, Int32 ByRef, Int32 ByRef)
    System.Drawing.Graphics.MeasureString(System.String, System.Drawing.Font, System.Drawing.PointF, System.Drawing.StringFormat)
    ..(System.String, System.Drawing.PointF, .)
    ..(, , ., .,  ByRef)
    ..(, , Aspose.Slides.Pptx.PortionEx)
    ..()
    ...ctor(Aspose.Slides.Pptx.ParagraphFormatEx[], Aspose.Slides.Pptx.ParagraphExCollection, Single, Single, Int32, Single, Boolean, Aspose.Slides.Pptx.TextAnchorTypeEx, Boolean, Aspose.Slides.Pptx.BaseSlideEx, FloatColor, Aspose.Slides.Pptx.FontsEx, Aspose.Slides.Pptx.FontCollectionIndexEx, Single, Single, Int32)
    Aspose.Slides.Pptx.TextFrameEx.(Single, Single, ., .�)
    Aspose.Slides.Pptx.TableEx.(.[,], .�)
    Aspose.Slides.Pptx.TableEx.()
    Assette.PowerPointGenerator.PresentationGenerator.PopulateRowTablePaged(Aspose.Slides.Pptx.BaseSlideEx, Aspose.Slides.Pptx.ShapeEx, Aspose.Slides.Pptx.PresentationEx, Boolean, Single, Int32, Int32)
    Assette.PowerPointGenerator.PresentationGenerator.ProcessSlide(Int32 ByRef, Aspose.Slides.Pptx.BaseSlideEx, Int32, Int32, Boolean)
    Assette.PowerPointGenerator.PresentationGenerator.GeneratePresentaion(System.String, System.String, Int32, System.String, Int32)
    Assette.PowerPointGenerator.Generator.GeneratePresentation(Int32, Int32, System.String, System.String, System.String, System.String, System.String, System.String, System.String, System.String, System.String, Boolean, System.String ByRef)
    Assette.PowerPointGenerator.Generator.GeneratePresentation(Int32, Int32, System.String, System.String, System.String, System.String, System.String, System.String, System.String, System.String, Boolean, System.String ByRef)
    Assette.PowerPointGenerator.Generator.GeneratePresentation(Int32, Int32, System.String, System.String, System.String, System.String, System.String, System.String, System.String, System.String, System.String ByRef)
    Assette.PowerPointGenerator.Generator.GeneratePresentation(Int32, Int32, System.String, System.String, System.String, System.String, System.String ByRef)
    Assette.PowerPointGenerator.Generator.GeneratePresentation(Int32, Int32, System.String, System.String, System.String ByRef)
    Assette.PowerPointGenerator.Generator.GeneratePresentation(Int32, Int32, System.String)
    Assette.CA.StatementGeneratorService.StatementPptGenerationWorker.Doer()
    System.Threading.ThreadHelper.ThreadStart_Context(System.Object)
    System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
    System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
    System.Threading.ThreadHelper.ThreadStart()


    Full Call Stack
    Function        Arg 1        Arg 2        Arg 3        Arg 4      Source
    GdiPlus!GdipMeasureString+df        18958590        31f390b8        00000001        10876fd0     
    DomainBoundILStubClass.IL_STUB_PInvoke(System.Runtime.InteropServices.HandleRef, System.String, Int32, System.Runtime.InteropServices.HandleRef, System.Drawing.Internal.GPRECTF ByRef, System.Runtime.InteropServices.HandleRef, System.Drawing.Internal.GPRECTF ByRef, Int32 ByRef, Int32 ByRef)        0454d9e0        0454d9e4        0454d9e8        31f37488     
    System.Drawing.Graphics.MeasureString(System.String, System.Drawing.Font, System.Drawing.PointF, System.Drawing.StringFormat)        31f37488        00000000        00000000        31f390d8     
    ..(System.String, System.Drawing.PointF, .)        31f38bf8        00000000        00000000        3208ee98     
    ..(, , ., .,  ByRef)        0454dac8        31f38e54        31f3751c        00000000     
    ..(, , Aspose.Slides.Pptx.PortionEx)        31f3751c        00000000        0000000a        31f3751c     
    ..()        3f800000        320811b8        32089994        2005532c     
    ...ctor(Aspose.Slides.Pptx.ParagraphFormatEx[], Aspose.Slides.Pptx.ParagraphExCollection, Single, Single, Int32, Single, Boolean, Aspose.Slides.Pptx.TextAnchorTypeEx, Boolean, Aspose.Slides.Pptx.BaseSlideEx, FloatColor, Aspose.Slides.Pptx.FontsEx, Aspose.Slides.Pptx.FontCollectionIndexEx, Single, Single, Int32)        00000010        00000000        3f800000        00000000     
    Aspose.Slides.Pptx.TextFrameEx.(Single, Single, ., .�)        00000002        323285ec        00000000        00000008     
    System.Globalization.CompareInfo.IsPrefix(System.String, System.String, System.Globalization.CompareOptions)        00000038        0161aee0        79163839        1d953ba0     
    clr!COMString::IndexOfCharArray+b3        79142c26        1d953b84        0454e1ac        0454e1a4     
    0x3232520c        0454e1a4        0289868d        00000000        00000000     
    0x0454e1ac        0289868d        00000000        00000000        00000000     
    0x0454e1a4        1f85ffac        0454e30c        0454ec6c        082ab80f     
    0x26a131b4

    And then we debugged the service using visual studio "Attach process" option with the code, and found out that the exception is thrown when we call TableEx.Height method for a table. this is really frustrating to have such issues, its almost more than an year we are trying to release PPTX version of our product and every time we are struggling because of some Aspose issue. really appreciate a properly tested product.

    i have attached the debug dias report, the direct inner exception details, and the  template in the attachment for your reference.

    Thanks,
    Aneef
     

  •  02-02-2012, 9:58 AM 358988 in reply to 358930

    Re: Multithreading and Table.Height causing Access Violation issues

    Hi Aneef,

    Please accept my apologies for the caused inconvenience. We have always tried our best to serve your issue well. I have observed the issue that you are getting table height issue equals to null in thread environment but in order to reproduce the issue on our end please share the source project code. This way our development team will be able to quickly assess the situation.

    We are sorry for your inconvenience,
    Mudassir Fayyaz
    Support Developer
    Aspose Sialkot Team
    Contact Us
    Aspose - The .NET and Java Component Publisher

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  •  02-13-2012, 12:07 AM 360927 in reply to 358988

    Re: Multithreading and Table.Height causing Access Violation issues

    Mudassir,

    sorry for responding late on this. but if you see, we have been working on various simulators to reproduce errors we have got. and spending alot of time in creating them without concentrating on our actual development work. to reproduce this we have to almost write the same window service and prepare the sample data which might take sometime, with having the other issues.

    but appreciate if your devs can look in to the code and see if there are any threading issues because the exception throws exactly when we try to get the table.Height property. we are happy to share a remote session if you are willing to so we can recreate and show you the error. also i think the attached logs gives alot of information too.

    Thanks,
    Aneef
     

  •  02-13-2012, 5:00 AM 361068 in reply to 360927

    Re: Multithreading and Table.Height causing Access Violation issues

    Hi Aneef,

    I agree with your point of view but at the same time you see when you provide all the necessary information it is easy for us to focus on your issue and developer can easily work over that and can produce results earlier. I may kindly request you to provide us with all necessary information to reproduce the data as because without that it will be hard for developer to reproduce the same on our end. I regret to share that unfortunately, we may not cater the online access to your system and visualize the issue.

    We are sorry for your inconvenience, 
    Mudassir Fayyaz
    Support Developer
    Aspose Sialkot Team
    Contact Us
    Aspose - The .NET and Java Component Publisher

    Keep in touch! We're on Twitter and Facebook
     
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