public virtual int Offset()
{
if (_delegate == null)
{
return(0);
}
return(_delegate.Offset());
}
public virtual ByteArrayBuffer Marshall(LocalTransaction transaction, IIntIterator4
ids, int count)
{
ByteArrayBuffer buffer = new ByteArrayBuffer(Const4.IntLength + count * Const4.IntLength
);
int sizeOffset = buffer.Offset();
buffer.WriteInt(0);
int written = 0;
while (count > 0 && ids.MoveNext())
{
buffer.WriteInt(ids.CurrentInt());
++written;
--count;
}
buffer.Seek(sizeOffset);
buffer.WriteInt(written);
return buffer;
}
public int Offset()
{
return(_source.Offset());
}
private void WriteIntAt(ByteArrayBuffer target, int offset, int value)
{
int currentOffset = target.Offset();
target.Seek(offset);
target.WriteInt(value);
target.Seek(currentOffset);
}
private bool CheckSumOK(ByteArrayBuffer buffer, int offset)
{
int initialOffSet = buffer.Offset();
int length = OwnLength();
length -= ChecksumLength;
buffer.Seek(offset);
long readCheckSum = buffer.ReadLong();
int checkSumBeginOffset = buffer.Offset();
byte[] bytes = buffer._buffer;
long calculatedCheckSum = CRC32.CheckSum(bytes, checkSumBeginOffset, length);
buffer.Seek(initialOffSet);
return calculatedCheckSum == readCheckSum;
}
private void Marshall(ByteArrayBuffer buffer, bool shuttingDown)
{
int checkSumOffset = buffer.Offset();
buffer.IncrementOffset(ChecksumLength);
int checkSumBeginOffset = buffer.Offset();
WriteBuffer(buffer, shuttingDown);
int checkSumEndOffSet = buffer.Offset();
byte[] bytes = buffer._buffer;
int length = checkSumEndOffSet - checkSumBeginOffset;
long checkSum = CRC32.CheckSum(bytes, checkSumBeginOffset, length);
buffer.Seek(checkSumOffset);
buffer.WriteLong(checkSum);
buffer.Seek(checkSumEndOffSet);
}
