void addThreadItems(Iterable<BddtHistoryItem> itms, long since) {
GraphObject lastobj = null;
BddtHistoryItem lastitem = null;
for (BddtHistoryItem hi : itms) {
GraphObject go = getObject(hi);
if (since == 0 || hi.getTime() > since) {
last_time = Math.max(last_time, hi.getTime());
if (start_time == 0) start_time = last_time;
else start_time = Math.min(start_time, hi.getTime());
if (go == null) continue;
if (lastobj == null) { // first time
go.startBlock(hi);
} else if (lastobj == go) { // step inside the same object
go.extendBlock(hi);
} else if (lastitem != null && hi.isInside(lastitem)) { // step/call into a new object
go.startBlock(hi);
lastobj.addLink(go, LinkType.ENTER, hi);
} else if (lastitem != null && lastitem.isInside(hi)) { // return to prior object
go.extendBlock(hi);
// end prior block??
lastobj.addLink(go, LinkType.RETURN, hi);
} else {
lastobj.finish(hi);
go.startBlock(hi);
lastobj.addLink(go, LinkType.NEXT, hi);
}
}
lastobj = go;
lastitem = hi;
}
}
