[gdal-dev] exception, while creating large image

[Tamas Szekeres]

Do you have a sample data to reproduce this?

Best regards,

Tamas


2010/7/26 mail2vajram <mail2vajram at gmail.com>

>
> in my application i need to create multiple images with large size using
> C#.
> while creating multiple files first three images created successfully after
> that i got the following exception.
>
> ContextSwitchDeadLock was detecteed
>
>
>
> The CLR has been unable to transition from COM context 0x204d28 to COM
> context 0x204e98 for 60 seconds. The thread that owns the destination
> context/apartment is most likely either doing a non pumping wait or
> processing a very long running operation without pumping Windows messages.
> This situation generally has a negative performance impact and may even
> lead
> to the application becoming non responsive or memory usage accumulating
> continually over time. To avoid this problem, all single threaded apartment
> (STA) threads should use pumping wait primitives (such as
> CoWaitForMultipleHandles) and routinely pump messages during long running
> operations.
>
>
> my code is.....
>
>
> for (i = 1; i < vallist; i++)
>            {
>
>                // create new trans images....
>                Driver createtransdriver = Gdal.GetDriverByName("HFA");
>                Dataset createtransdataset =
> createtransdriver.Create(startuppath + "\\Transimages\\Calss_" +
> i.ToString() + ".IMG", band.XSize, band.YSize, 1, DataType.GDT_Float32,
> null);
>                Band createtransband = createtransdataset.GetRasterBand(1);
>
>
>                for (j = 0; j < band.YSize; j++)
>                {
>
>                    for (k = 0; k < band.XSize; k++)
>                    {
>                        band.ReadRaster(k, j, 1, 1, value, 1, 1, 1, 1);
>                        if (value[0] == 0)
>                        {
>
>                            createtransband.WriteRaster(k, j, 1, 1, value,
> 1, 1, 1, 1);
>                        }
>                        else
>                        {
>                            imgval = arrayprobs[value[0] - 1, i - 1];
>                            value[0] = Convert.ToInt32(imgval);
>                            createtransband.WriteRaster(k, j, 1, 1, value,
> 1, 1, 1, 1);
>
>                        }
>                    }
>
>                }
>                createtransband = null;
>                createtransdataset = null;
>                createtransdriver = null;
>
>
>            }
>
>
>
> how to overcome this..............
>
>
> help me please
> --
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