/// <exception cref="System.IO.IOException"/>
private long DumpFromOffset(PathData item, long offset)
{
long fileSize = item.RefreshStatus().GetLen();
if (offset > fileSize)
{
return(fileSize);
}
// treat a negative offset as relative to end of the file, floor of 0
if (offset < 0)
{
offset = Math.Max(fileSize + offset, 0);
}
FSDataInputStream @in = item.fs.Open(item.path);
try
{
@in.Seek(offset);
// use conf so the system configured io block size is used
IOUtils.CopyBytes(@in, System.Console.Out, GetConf(), false);
offset = @in.GetPos();
}
finally
{
@in.Close();
}
return(offset);
}
/// <exception cref="System.IO.IOException"/>
protected internal override void RecursePath(PathData src)
{
PathData savedDst = dst;
try
{
// modify dst as we descend to append the basename of the
// current directory being processed
dst = GetTargetPath(src);
bool preserveRawXattrs = CheckPathsForReservedRaw(src.path, dst.path);
if (dst.exists)
{
if (!dst.stat.IsDirectory())
{
throw new PathIsNotDirectoryException(dst.ToString());
}
}
else
{
if (!dst.fs.Mkdirs(dst.path))
{
// too bad we have no clue what failed
PathIOException e = new PathIOException(dst.ToString());
e.SetOperation("mkdir");
throw e;
}
dst.RefreshStatus();
}
// need to update stat to know it exists now
base.RecursePath(src);
if (dst.stat.IsDirectory())
{
PreserveAttributes(src, dst, preserveRawXattrs);
}
}
finally
{
dst = savedDst;
}
}