public static void Forward(Stream source, int sourceOffset, Stream target, int length)
{
PagedMemoryStream pagedMemoryStream = source as PagedMemoryStream;
if (pagedMemoryStream != null)
{
pagedMemoryStream.WriteTo(sourceOffset, target, length);
}
else
{
MemoryStream memoryStream = source as MemoryStream;
if (memoryStream != null)
{
target.Write(memoryStream.GetBuffer(), sourceOffset, length);
}
else
{
long position = source.Position;
source.Position = (long)sourceOffset;
byte[] buffer = new byte[65536];
int num = length / 65536;
for (int index = 0; index < num; ++index)
{
source.Read(buffer, 0, 65536);
target.Write(buffer, 0, 65536);
}
int count = length - num * 65536;
if (count > 0)
{
source.Read(buffer, 0, count);
target.Write(buffer, 0, count);
}
source.Position = position;
}
}
}
public static void Forward(Stream source, Stream target)
{
PagedMemoryStream pagedMemoryStream = source as PagedMemoryStream;
if (pagedMemoryStream != null)
{
pagedMemoryStream.WriteTo(target);
}
else
{
MemoryStream memoryStream = source as MemoryStream;
if (memoryStream != null)
{
target.Write(memoryStream.GetBuffer(), 0, (int)memoryStream.Length);
}
else
{
long position = source.Position;
source.Position = 0L;
byte[] buffer = new byte[65536];
int num = (int)(source.Length / 65536L);
for (int index = 0; index < num; ++index)
{
source.Read(buffer, 0, 65536);
target.Write(buffer, 0, 65536);
}
int count = (int)(source.Length - (long)(num * 65536));
if (count > 0)
{
source.Read(buffer, 0, count);
target.Write(buffer, 0, count);
}
source.Position = position;
}
}
}