private long newPosition(
final int activeTermId,
final int activeIndex,
final int currentTail,
final long position,
final int nextOffset) {
long newPosition = BACK_PRESSURED;
if (nextOffset > 0) {
newPosition = (position - currentTail) + nextOffset;
} else if (nextOffset == TermAppender.TRIPPED) {
final int newTermId = activeTermId + 1;
final int nextIndex = nextPartitionIndex(activeIndex);
final int nextNextIndex = nextPartitionIndex(nextIndex);
defaultHeaderTermId(logMetaDataBuffer, nextIndex, newTermId);
// Need to advance the term id in case a publication takes an interrupt
// between reading the active term and incrementing the tail.
// This covers the case of an interrupt taking longer than
// the time taken to complete the current term.
defaultHeaderTermId(logMetaDataBuffer, nextNextIndex, newTermId + 1);
termAppenders[nextNextIndex].statusOrdered(NEEDS_CLEANING);
LogBufferDescriptor.activeTermId(logMetaDataBuffer, newTermId);
newPosition = ADMIN_ACTION;
}
return newPosition;
}
