private long NewPosition(int resultingOffset)
{
if (resultingOffset > 0)
{
_termOffset = resultingOffset;
return(_termBeginPosition + resultingOffset);
}
else
{
if ((_termBeginPosition + _termBufferLength) >= MaxPossiblePosition())
{
return(MAX_POSITION_EXCEEDED);
}
int nextIndex = LogBufferDescriptor.NextPartitionIndex(_activePartitionIndex);
int nextTermId = _termId + 1;
_activePartitionIndex = nextIndex;
_termOffset = 0;
_termId = nextTermId;
_termBeginPosition =
LogBufferDescriptor.ComputeTermBeginPosition(nextTermId, _positionBitsToShift, InitialTermId);
LogBufferDescriptor.InitialiseTailWithTermId(_logMetaDataBuffer, nextIndex, nextTermId);
LogBufferDescriptor.ActivePartitionIndexOrdered(_logMetaDataBuffer, nextIndex);
return(ADMIN_ACTION);
}
}
private long NewPosition(int index, int currentTail, long position, long result)
{
var newPosition = ADMIN_ACTION;
var termOffset = TermAppender.TermOffset(result);
if (termOffset > 0)
{
newPosition = (position - currentTail) + termOffset;
}
else if (termOffset == TermAppender.TRIPPED)
{
var nextIndex = LogBufferDescriptor.NextPartitionIndex(index);
_termAppenders[nextIndex].TailTermId(TermAppender.TermId(result) + 1);
LogBufferDescriptor.ActivePartitionIndexOrdered(_logMetaDataBuffer, nextIndex);
}
return(newPosition);
}
private long NewPosition(int index, int currentTail, long position, long result)
{
var newPosition = ADMIN_ACTION;
var termOffset = LogBufferDescriptor.TermOffset(result);
if (termOffset > 0)
{
newPosition = (position - currentTail) + termOffset;
}
else if ((position + currentTail) > _maxPossiblePosition)
{
newPosition = MAX_POSITION_EXCEEDED;
}
else if (termOffset == TermAppender.TRIPPED)
{
var nextIndex = LogBufferDescriptor.NextPartitionIndex(index);
LogBufferDescriptor.InitialiseTailWithTermId(_logMetaDataBuffer, nextIndex, LogBufferDescriptor.TermId(result) + 1);
LogBufferDescriptor.ActivePartitionIndexOrdered(_logMetaDataBuffer, nextIndex);
}
return(newPosition);
}
private long NewPosition(int resultingOffset)
{
if (resultingOffset > 0)
{
_termOffset = resultingOffset;
return(_termBeginPosition + resultingOffset);
}
else
{
int nextIndex = LogBufferDescriptor.NextPartitionIndex(_activePartitionIndex);
int nextTermId = _termId + 1;
_activePartitionIndex = nextIndex;
_termOffset = 0;
_termId = nextTermId;
_termBeginPosition = LogBufferDescriptor.ComputeTermBeginPosition(nextTermId, _positionBitsToShift, InitialTermId);
_termAppenders[nextIndex].TailTermId(nextTermId);
LogBufferDescriptor.ActivePartitionIndexOrdered(_logMetaDataBuffer, nextIndex);
return(ADMIN_ACTION);
}
}