How can I split (copy) a Stream in .NET?

by

I have made a SplitStream available on github and NuGet.

It goes like this.

using (var inputSplitStream = new ReadableSplitStream(inputSourceStream))

using (var inputFileStream = inputSplitStream.GetForwardReadOnlyStream())
using (var outputFileStream = File.OpenWrite("MyFileOnAnyFilestore.bin"))

using (var inputSha1Stream = inputSplitStream.GetForwardReadOnlyStream())
using (var outputSha1Stream = SHA1.Create())
{
    inputSplitStream.StartReadAhead();

    Parallel.Invoke(
        () => {
            var bytes = outputSha1Stream.ComputeHash(inputSha1Stream);
            var checksumSha1 = string.Join("", bytes.Select(x => x.ToString("x")));
        },
        () => {
            inputFileStream.CopyTo(outputFileStream);
        },
    );
}

I have not tested it on very large streams, but give it a try.

github: https://github.com/microknights/SplitStream

More Related Contents:

  1. How do I save a stream to a file in C#?
  2. How to check for file lock? [duplicate]
  3. How to add a Timeout to Console.ReadLine()?
  4. Reading large text files with streams in C#
  5. Calculate the execution time of a method
  6. Cannot delete directory with Directory.Delete(path, true)
  7. Save and load MemoryStream to/from a file
  8. How do I convert struct System.Byte byte[] to a System.IO.Stream object in C#?
  9. What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?
  10. “The given path’s format is not supported.”
  11. How to find and replace text in a file
  12. Stream.Seek(0, SeekOrigin.Begin) or Position = 0
  13. How do I concatenate two System.IO.Stream instances into one?
  14. An elegant way to consume (all bytes of a) BinaryReader?
  15. HttpWebRequest & Native GZip Compression
  16. How to find out if a file exists in C# / .NET?
  17. When or if to Dispose HttpResponseMessage when calling ReadAsStreamAsync?
  18. Does FileStream.Dispose close the file immediately?
  19. How to get a MemoryStream from a Stream in .NET?
  20. File.ReadLines without locking it?
  21. MVVM: Tutorial from start to finish?
  22. Parallel.ForEach Slower than ForEach
  23. How to grant full permission to a file created by my application for ALL users?
  24. Internal .NET Framework Data Provider error 1025
  25. How to use custom Authorize attribute for roles as well as a specific user?
  26. How to create a SerializationBinder for the Binary Formatter that handles the moving of types from one assembly and namespace to another
  27. Why Create Custom Exceptions? [closed]
  28. Implementing arithmetic in generics?
  29. Prevent Winforms Designer from Generating Property Values for Inherited Controls
  30. Detect if non DPI-aware application has been scaled/virtualized

Leave a Comment