/// <exception cref="WinrtCifs.Smb.SmbException"></exception>
public virtual int Read(byte[] b, int off, int len)
{
if (len <= 0)
{
return(0);
}
long start = _fp;
// ensure file is open
if (_file.IsOpen() == false)
{
_file.Open(_openFlags, 0, SmbFile.AttrNormal, _options);
}
int r;
int n;
SmbComReadAndXResponse response = new SmbComReadAndXResponse(b, off);
do
{
r = len > _readSize ? _readSize : len;
_file.Send(new SmbComReadAndX(_file.Fid, _fp, r, null), response);
if ((n = response.DataLength) <= 0)
{
return((int)((_fp - start) > 0L ? _fp - start : -1));
}
_fp += n;
len -= n;
response.Off += n;
}while (len > 0 && n == r);
return((int)(_fp - start));
}
public virtual bool IsOpen()
{
return(_file.IsOpen());
}
