public static void DecompressGZipStream(Stream instream, Stream outstream)
{
GZipStream gzipStream = new GZipStream(instream, CompressionMode.Decompress, true);
IOTools.CopyStreamChunked((Stream)gzipStream, outstream);
gzipStream.Close();
}
public static int CopyStreamSelect(Stream instream, Stream outstream)
{
if (instream.CanSeek && instream.Length < 1048577)
{
return(IOTools.CopyStreamAtOnce(instream, outstream));
}
return(IOTools.CopyStreamChunked(instream, outstream));
}
public static void CompressStreamGZipStream(Stream instream, Stream outstream)
{
GZipStream gZipStream = new GZipStream(outstream, CompressionMode.Compress, true);
IOTools.CopyStreamChunked(instream, gZipStream);
gZipStream.Close();
gZipStream = null;
}
public static Stream ReadStreamFromStream(Stream instream, long offset, long length)
{
MemoryStream memoryStream = new MemoryStream();
instream.Seek(offset, SeekOrigin.Begin);
IOTools.CopyStreamChunked(instream, memoryStream, length);
memoryStream.Seek(0L, SeekOrigin.Begin);
return(memoryStream);
}
public static long CopyStreamAtOnce(Stream instream, Stream outstream, long length)
{
if (instream.CanSeek)
{
byte[] array = new byte[Math.Min(instream.Length, length)];
int num = instream.Read(array, 0, array.Length);
outstream.Write(array, 0, num);
array = null;
return(num);
}
return(IOTools.CopyStreamChunked(instream, outstream, length));
}
public static long CopyStreamAtOnce(Stream instream, Stream outstream, long length)
{
if (!instream.CanSeek)
{
return(IOTools.CopyStreamChunked(instream, outstream, length));
}
byte[] buffer = new byte[Math.Min(instream.Length, length)];
int count = instream.Read(buffer, 0, buffer.Length);
outstream.Write(buffer, 0, count);
return((long)count);
}
public static int CopyStreamAtOnce(Stream instream, Stream outstream)
{
if (!instream.CanSeek)
{
return(IOTools.CopyStreamChunked(instream, outstream));
}
byte[] buffer = new byte[instream.Length];
int count = instream.Read(buffer, 0, buffer.Length);
outstream.Write(buffer, 0, count);
return(count);
}
public static void StreamToFile(Stream instream, string filename)
{
DirectoryInfo directory = new FileInfo(filename).Directory;
if (!directory.Exists)
{
directory.Create();
}
FileStream fileStream = File.Open(filename, FileMode.Create, FileAccess.Write, FileShare.None);
IOTools.CopyStreamChunked(instream, fileStream);
fileStream.Close();
}
public static long CopyStream(Stream instream, Stream outstream, long length)
{
return(IOTools.CopyStreamChunked(instream, outstream, length));
}
public static int CopyStream(Stream instream, Stream outstream)
{
return(IOTools.CopyStreamChunked(instream, outstream));
}