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; } }