convert the object (obj) into a serialized protobuf object, compress and then write to tmpFile

gistfile1.cs

  using (MemoryStream serialized = new MemoryStream())
  {
      Serializer.Serialize(serialized, obj);
      byte[] data = serialized.ToArray();
      using (FileStream fs = new FileStream(tmpFile, FileMode.Create))
      {
          using (GZipStream zip = new GZipStream(fs, CompressionMode.Compress))
          {
              zip.Write(data, 0, data.Length);
          }
      }
  }