/**
*
* @return the sid of the next record or {@link #INVALID_SID_VALUE} if at end of stream
*/
private int ReadNextSid()
{
int nAvailable = _bhi.Available();
if (nAvailable < EOFRecord.ENCODED_SIZE)
{
if (nAvailable > 0)
{
// some scrap left over?
// ex45582-22397.xls has one extra byte after the last record
// Excel reads that file OK
}
return(INVALID_SID_VALUE);
}
int result = _bhi.ReadRecordSID();
if (result == INVALID_SID_VALUE)
{
throw new RecordFormatException("Found invalid sid (" + result + ")");
}
_currentDataLength = DATA_LEN_NEEDS_TO_BE_READ;
return(result);
}
