lwt_edgeEndStar_addEdge()

void lwt_edgeEndStar_addEdge	(	LWT_EDGEEND_STAR *	star,
		const LWT_ISO_EDGE *	edge
	)

Definition at line 66 of file lwt_edgeend_star.c.

{
  int numEdgeEnds = 0;
  LWT_EDGEEND *edgeEnds[2];
  uint64_t newCapacity;
 
  if ( edge->start_node == star->nodeID )
  {
    LWT_EDGEEND *ee = lwt_edgeEnd_fromEdge( edge, 1 );
    if ( ! ee ) {
      lwerror("Could not construct outgoing EdgeEnd for edge %"
        LWTFMT_ELEMID, edge->edge_id);
      return;
    }
    edgeEnds[numEdgeEnds++] = ee;
  }
  if ( edge->end_node == star->nodeID )
  {
    LWT_EDGEEND *ee = lwt_edgeEnd_fromEdge( edge, 0 );
    if ( ! ee ) {
      lwerror("Could not construct outgoing incoming for edge %"
        LWTFMT_ELEMID, edge->edge_id);
      return;
    }
    edgeEnds[numEdgeEnds++] = ee;
  }
 
  if ( ! numEdgeEnds )
  {
    lwerror("Edge %" LWTFMT_ELEMID
      " doesn't start nor end on star node %" LWTFMT_ELEMID,
      edge->edge_id, star->nodeID);
    return;
  }
 
  LWDEBUGF(1, "Edge %" LWTFMT_ELEMID
    " got %d" " ends incident to star node %" LWTFMT_ELEMID,
    edge->edge_id, numEdgeEnds, star->nodeID );
 
  newCapacity = star->numEdgeEnds + numEdgeEnds;
  LWDEBUGF(3, "Current star capacity:%lld, required:%lld",
    star->edgeEndsCapacity, newCapacity);
  if ( newCapacity > star->edgeEndsCapacity )
  {
    LWDEBUGF(3, "Reallocating edgeEnds from %p to new size %lld", star->edgeEnds, newCapacity * sizeof(LWT_EDGEEND *));
    if ( star->edgeEnds ) {
      star->edgeEnds = lwrealloc(star->edgeEnds, newCapacity * sizeof(LWT_EDGEEND *));
    } else {
      star->edgeEnds = lwalloc(newCapacity * sizeof(LWT_EDGEEND *));
    }
    LWDEBUGF(3, "Reallocated edgeEnds are %p", star->edgeEnds);
    star->edgeEndsCapacity = newCapacity;
    LWDEBUGF(3, "New star capacity: %lld", newCapacity);
  }
 
  for (int i=0; i<numEdgeEnds; ++i)
  {
    star->edgeEnds[ star->numEdgeEnds++ ] = edgeEnds[i];
  }
  star->sorted = 0;
}

References LWT_ISO_EDGE::edge_id, LWT_EDGEEND_STAR_t::edgeEnds, LWT_EDGEEND_STAR_t::edgeEndsCapacity, LWT_ISO_EDGE::end_node, lwalloc(), LWDEBUGF, lwerror(), lwrealloc(), lwt_edgeEnd_fromEdge(), LWTFMT_ELEMID, LWT_EDGEEND_STAR_t::nodeID, LWT_EDGEEND_STAR_t::numEdgeEnds, LWT_EDGEEND_STAR_t::sorted, and LWT_ISO_EDGE::start_node.

Referenced by _lwt_SnapEdgeToExistingNode().

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