Large folder (> 3Gib) throws exception "Stream was too long"

[xhuan8]

Hi, is it possible to turn on "x64" for large folder or this feature is not ready?

using (var archive = ZipArchive.Create())
{
    archive.AddAllFromDirectory(path);
    archive.SaveTo(stream);
}

exception: System.IO.IOException: Stream was too long.
at System.IO.MemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at SharpCompress.IO.CountingWritableSubStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at SharpCompress.Compressors.Deflate.ZlibBaseStream.finish()
at SharpCompress.Compressors.Deflate.ZlibBaseStream.Dispose(Boolean disposing)
at System.IO.Stream.Close()
at SharpCompress.Compressors.Deflate.DeflateStream.Dispose(Boolean disposing)
at System.IO.Stream.Close()
at SharpCompress.Writers.Zip.ZipWriter.ZipWritingStream.Dispose(Boolean disposing)
at System.IO.Stream.Close()
at System.IO.Stream.Dispose()
at SharpCompress.Writers.Zip.ZipWriter.Write(String entryPath, Stream source, ZipWriterEntryOptions zipWriterEntryOptions)
at SharpCompress.Archives.Zip.ZipArchive.SaveTo(Stream stream, WriterOptions options, IEnumerable1 oldEntries, IEnumerable1 newEntries)
at SharpCompress.Archives.AbstractWritableArchive`2.SaveTo(Stream stream, WriterOptions options)

[adamhathcock]

It must only be partially implemented. I know Zip64 extraction is done by Zip64 creation must still need some work

[Morilli]

This is a limitation of the MemoryStream or rather the fact that arrays are limited to ~2^31 elements. You could implement your own custom stream that stores data in multiple arrays or pass in a stream that does not store all written data in memory directly.