730 lines
21 KiB
C++
730 lines
21 KiB
C++
// -*- C++ -*-
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//
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// This file is part of the Coriolis Software.
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// Copyright (c) UPMC 2008-2015, All Rights Reserved
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//
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// +-----------------------------------------------------------------+
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// | C O R I O L I S |
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// | K i t e - D e t a i l e d R o u t e r |
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// | |
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// | Author : Jean-Paul CHAPUT |
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// | E-mail : Jean-Paul.Chaput@asim.lip6.fr |
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// | =============================================================== |
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// | C++ Module : "./Track.cpp" |
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// +-----------------------------------------------------------------+
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#include <cstdlib>
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#include <sstream>
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#include <memory>
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#include <algorithm>
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#include "hurricane/Warning.h"
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#include "hurricane/Bug.h"
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#include "hurricane/Layer.h"
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#include "hurricane/Net.h"
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#include "kite/RoutingPlane.h"
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#include "kite/Track.h"
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#include "kite/TrackMarker.h"
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#include "kite/DataNegociate.h"
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namespace {
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using namespace std;
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using namespace CRL;
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using namespace Kite;
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struct isDetachedSegment {
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bool operator() ( const TrackElement* s ) { return not s->getTrack(); };
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};
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// DbU::Unit getPositionByIterator ( const vector<TrackElement*>& v, size_t i )
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// { return (*(v.begin()+i))->getSourceU(); }
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} // Anonymous namespace.
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namespace Kite {
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using std::lower_bound;
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using std::remove_if;
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using std::sort;
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using Hurricane::dbo_ptr;
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using Hurricane::tab;
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using Hurricane::inltrace;
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using Hurricane::ltracein;
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using Hurricane::ltraceout;
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using Hurricane::Warning;
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using Hurricane::Bug;
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using Hurricane::Layer;
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using Hurricane::Net;
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// -------------------------------------------------------------------
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// Class : "Track".
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const size_t Track::npos = (size_t)-1;
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Track::Track ( RoutingPlane* routingPlane, unsigned int index )
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: _routingPlane (routingPlane)
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, _index (index)
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, _axis (routingPlane->getTrackPosition(index))
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, _min (routingPlane->getTrackMin())
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, _max (routingPlane->getTrackMax())
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, _segments ()
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, _markers ()
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, _localAssigned(false)
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, _segmentsValid(false)
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, _markersValid (false)
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{ }
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void Track::_postCreate ()
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{ }
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Track::~Track ()
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{ ltrace(90) << "Track::~Track() - " << (void*)this << endl; }
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void Track::_preDestroy ()
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{
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ltrace(90) << "Track::_preDestroy() - " << (void*)this << " " << this << endl;
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ltracein(90);
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for ( size_t i=0 ; i<_segments.size() ; i++ )
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if (_segments[i]) _segments[i]->detach();
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for ( size_t i=0 ; i<_markers.size() ; i++ )
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if (_markers[i]) _markers[i]->destroy();
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ltraceout(90);
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}
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void Track::destroy ()
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{
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ltrace(90) << "Track::destroy() - " << (void*)this << " " << this << endl;
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Track::_preDestroy();
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delete this;
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}
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KiteEngine* Track::getKiteEngine () const
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{ return _routingPlane->getKiteEngine(); }
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unsigned int Track::getDepth () const
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{ return _routingPlane->getDepth(); }
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const Layer* Track::getLayer () const
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{ return _routingPlane->getLayer(); }
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const Layer* Track::getBlockageLayer () const
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{ return _routingPlane->getBlockageLayer(); }
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Track* Track::getNextTrack () const
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{ return getRoutingPlane()->getTrackByIndex( getIndex()+1 ); }
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Track* Track::getPreviousTrack () const
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{
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if (not getIndex()) return NULL;
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return getRoutingPlane()->getTrackByIndex( getIndex()-1 );
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}
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TrackElement* Track::getSegment ( size_t index ) const
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{
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if ( (index == npos) or (index >= getSize()) ) return NULL;
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return _segments[index];
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}
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TrackElement* Track::getSegment ( DbU::Unit position ) const
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{
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unsigned int state;
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size_t begin;
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getBeginIndex( position, begin, state );
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if (state & (BeginIsTrackMin|EndIsTrackMax)) return NULL;
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return getSegment(begin);
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}
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TrackElement* Track::getNext ( size_t& index, Net* net ) const
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{
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for ( index++ ; index < _segments.size() ; index++ ) {
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if (_segments[index]->getNet() == net) continue;
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return _segments[index];
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}
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index = npos;
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return NULL;
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}
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TrackElement* Track::getPrevious ( size_t& index, Net* net ) const
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{
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for ( index-- ; index != npos ; index-- ) {
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if (inltrace(148)) {
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cerr << tab << index << ":"; cerr.flush();
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cerr << _segments[index] << endl;
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}
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if (_segments[index]->getNet() == net) continue;
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return _segments[index];
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}
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index = npos;
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return NULL;
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}
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TrackElement* Track::getNextFixed ( size_t& index ) const
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{
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TrackElement* nextFixed = getNext ( index, NULL );
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for ( ; nextFixed ; nextFixed = getNext(index,NULL) ) {
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if ( nextFixed->base()->isFixed() ) return nextFixed;
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}
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return nextFixed;
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}
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void Track::getBeginIndex ( DbU::Unit position, size_t& begin, unsigned int& state ) const
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{
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if (_segments.empty()) {
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state = EmptyTrack;
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begin = 0;
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return;
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}
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if (position < _min) {
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cerr << Warning( " Position %s inferior to the lower bound of %s. Returning npos."
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, DbU::getValueString(position).c_str()
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, getString(this).c_str() ) << endl;
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state = BeforeFirstElement;
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begin = 0;
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return;
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}
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if (position > _max) {
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cerr << Warning( " Position %s superior to the upper bound of %s. Returning npos."
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, DbU::getValueString(position).c_str()
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, getString(this).c_str() ) << endl;
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state = AfterLastElement;
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begin = _segments.size()-1;
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return;
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}
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vector<TrackElement*>::const_iterator lowerBound
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= lower_bound( _segments.begin(), _segments.end(), position, SourceCompare() );
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begin = lowerBound - _segments.begin();
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// This is suspicious.
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// I guess this has been written for the case of overlapping segments from the same
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// net, we find the first one of the overlapped sets. But what if they are not overlapping
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// but still from the same net?
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if (begin < _segments.size())
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for ( ; (begin > 0) and (_segments[begin-1]->getNet() == _segments[begin]->getNet()) ; --begin );
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state = 0;
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if ( (begin == 0) and (position < _segments[0]->getSourceU()) ) {
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state = BeforeFirstElement;
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} else {
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if (begin) begin -= 1;
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size_t usedBegin = begin;
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Interval usedInterval = getOccupiedInterval( usedBegin );
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if (position < usedInterval.getVMax())
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state = InsideElement;
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else
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if (begin+1 == _segments.size())
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state = AfterLastElement;
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else
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state = OutsideElement;
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}
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}
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void Track::getOverlapBounds ( Interval interval, size_t& begin, size_t& end ) const
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{
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unsigned int iState;
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if ( _segments.empty()
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or (interval.getVMax() <= _min)
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or (interval.getVMin() >= _max)) {
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begin = end = npos;
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return;
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}
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getBeginIndex ( interval.getVMin(), begin, iState );
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getOccupiedInterval( begin );
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getBeginIndex( interval.getVMax(), end, iState );
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while ( end < _segments.size() ) {
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if (_segments[end++]->getSourceU() >= interval.getVMax()) break;
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}
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}
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TrackCost Track::getOverlapCost ( Interval interval
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, Net* net
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, size_t begin
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, size_t end
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, unsigned int flags ) const
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{
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TrackCost cost ( const_cast<Track*>(this), interval, begin, end, net, flags );
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ltrace(190) << "getOverlapCost() @" << DbU::getValueString(_axis)
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<< " [" << DbU::getValueString(interval.getVMin())
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<< ":" << DbU::getValueString(interval.getVMax())
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<< "] <-> [" << begin << ":" << end << "]"
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<< endl;
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ltracein(148);
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vector<TrackMarker*>::const_iterator lowerBound
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= lower_bound( _markers.begin(), _markers.end(), interval.getVMin(), TrackMarker::Compare() );
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size_t mbegin = lowerBound - _markers.begin();
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for ( ; (mbegin < _markers.size())
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and (_markers[mbegin]->getSourceU() <= interval.getVMax()) ; mbegin++ ) {
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ltrace(148) << "| @" << DbU::getValueString(_axis) << _markers[mbegin] << endl;
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if ( _markers[mbegin]->getNet() != net ) {
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ltrace(148) << "* Mark: @" << DbU::getValueString(_axis) << " " << _markers[mbegin] << endl;
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cost.incTerminals( _markers[mbegin]->getWeight(this) );
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}
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}
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if (begin == npos) {
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ltrace(148) << " begin == npos (after last TrackElement)." << endl;
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ltraceout(148);
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return cost;
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}
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for ( ; begin < end ; begin++ ) {
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Interval overlap = interval.getIntersection( _segments[begin]->getCanonicalInterval() );
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if ( _segments[begin]->getNet() == net ) {
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cost.incDeltaShared ( overlap.getSize() );
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}
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ltrace(190) << "| overlap: " << _segments[begin] << endl;
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_segments[begin]->incOverlapCost( net, cost );
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if (cost.isInfinite()) break;
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}
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ltraceout(148);
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return cost;
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}
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TrackCost Track::getOverlapCost ( Interval interval, Net* net, unsigned int flags ) const
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{
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size_t begin;
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size_t end;
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getOverlapBounds( interval, begin, end );
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return getOverlapCost( interval, net, begin, end, flags );
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}
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TrackCost Track::getOverlapCost ( TrackElement* segment, unsigned int flags ) const
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{ return getOverlapCost ( segment->getCanonicalInterval(), segment->getNet(), flags ); }
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void Track::getTerminalWeight ( Interval interval, Net* net, size_t& count, unsigned int& weight ) const
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{
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ltrace(148) << "getTerminalWeight() @" << DbU::getValueString(_axis)
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<< " [" << interval.getVMin() << " " << interval.getVMax() << "]" << endl;
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ltracein(148);
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//count = 0;
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//weight = 0;
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vector<TrackMarker*>::const_iterator lowerBound
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= lower_bound ( _markers.begin(), _markers.end(), interval.getVMin(), TrackMarker::Compare() );
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size_t mbegin = lowerBound - _markers.begin();
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for ( ; (mbegin < _markers.size())
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&& (_markers[mbegin]->getSourceU() <= interval.getVMax()) ; mbegin++ ) {
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ltrace(148) << "| @" << DbU::getValueString(_axis) << _markers[mbegin] << endl;
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if ( _markers[mbegin]->getNet() == net ) {
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ltrace(200) << "* Mark: @" << DbU::getValueString(_axis) << " " << _markers[mbegin] << endl;
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weight += _markers[mbegin]->getWeight(this);
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++count;
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}
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}
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ltraceout(148);
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}
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size_t Track::find ( const TrackElement* segment ) const
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{
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if (_segments.empty()) return npos;
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vector<TrackElement*>::const_iterator lowerBound
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= lower_bound( _segments.begin()
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, _segments.end()
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, segment
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, SegmentCompare()
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);
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if (lowerBound != _segments.end()) {
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while ( segment->getSourceU() == (*lowerBound)->getSourceU() ) {
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if (*lowerBound == segment) return (size_t)(lowerBound-_segments.begin());
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lowerBound++;
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}
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}
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return npos;
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}
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Interval Track::getFreeInterval ( DbU::Unit position, Net* net ) const
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{
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unsigned int state;
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size_t begin;
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size_t end;
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if (_segments.empty()) return Interval(_min,_max);
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getBeginIndex( position, begin, state );
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if ( (state == InsideElement) and (_segments[begin]->getNet() != net) )
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return Interval();
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end = begin;
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return expandFreeInterval( begin, end, state, net );
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}
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Interval Track::expandFreeInterval ( size_t& begin, size_t& end, unsigned int state, Net* net ) const
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{
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DbU::Unit minFree = _min;
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if (not (state & BeginIsTrackMin) ) {
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if (_segments[begin]->getNet() == net)
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getPrevious( begin, net );
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if (begin != npos) {
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minFree = getOccupiedInterval(begin).getVMax();
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}
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}
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if (not (state & EndIsTrackMax) ) {
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if (_segments[end]->getNet() == net) {
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getNext( end, net );
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if (end == npos) {
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end = _segments.size() - 1;
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setMaximalFlags( state, EndIsTrackMax );
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} else {
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setMaximalFlags( state, EndIsSegmentMin );
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}
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}
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}
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return Interval( minFree, getMaximalPosition(end,state) );
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}
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void Track::invalidate ()
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{ _segmentsValid = false; }
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void Track::insert ( TrackMarker* marker )
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{
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_markers.push_back ( marker );
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_markersValid = false;
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}
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void Track::insert ( TrackElement* segment )
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{
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// ltrace(500) << "Deter| Track::insert() " << getLayer()->getName()
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// << " @" << DbU::getValueString(getAxis()) << " " << segment << endl;
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ltrace(200) << "Track::insert() " << getLayer()->getName()
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<< " @" << DbU::getValueString(getAxis()) << " " << segment << endl;
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if ( (getLayer()->getMask() != segment->getLayer()->getMask())
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and (getBlockageLayer()->getMask() != segment->getLayer()->getMask()) ) {
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cerr << Bug("Track::insert(), segment %s has not the right layer."
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,getString(segment).c_str()) << endl;
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}
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segment->setAxis ( getAxis() );
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_segments.push_back ( segment );
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_segmentsValid = false;
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segment->setTrack ( this );
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}
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void Track::setSegment ( TrackElement* segment, size_t index )
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{
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if ( index >= _segments.size() ) return;
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_segments[index] = segment;
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}
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bool Track::check ( unsigned int& overlaps, const char* message ) const
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{
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bool coherency = true;
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bool holes = false;
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if (message) cerr << " o Checking Track - " << message << endl;
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ltrace(90) << (void*)this << ":" << this << endl;
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for ( size_t i=0 ; i<_segments.size() ; i++ ) {
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if (_segments[i]) {
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if (i) {
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if (_segments[i-1] == _segments[i]) {
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cerr << "[CHECK] incoherency at " << i << " "
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<< _segments[i] << " is duplicated. " << endl;
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coherency = false;
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}
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}
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if (not _segments[i]->getTrack()) {
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cerr << "[CHECK] incoherency at " << i << " "
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<< _segments[i] << " is detached." << endl;
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coherency = false;
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} else {
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if (_segments[i]->getTrack() != this) {
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cerr << "[CHECK] incoherency at " << i << " "
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<< _segments[i] << " is in track "
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<< _segments[i]->getTrack() << endl;
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coherency = false;
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}
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if (_segments[i]->getIndex() != i) {
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cerr << "[CHECK] incoherency at " << i << " "
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<< _segments[i] << " has bad index "
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<< _segments[i]->getIndex() << endl;
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coherency = false;
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}
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}
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if (_segments[i]->getAxis() != getAxis()) {
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cerr << "[CHECK] incoherency at " << i << " "
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<< _segments[i] << " is not on Track axis "
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<< DbU::getValueString(getAxis()) << "." << endl;
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coherency = false;
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}
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coherency = _segments[i]->_check() and coherency;
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} else {
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cerr << "[CHECK] Hole at position " << i << "." << endl;
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holes = true;
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coherency = false;
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}
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}
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if (not holes)
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coherency = (checkOverlap(overlaps) == 0) and coherency;
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return coherency;
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}
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DbU::Unit Track::getSourcePosition ( size_t i ) const
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{
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if ( i == npos) return 0;
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return _segments[i]->getSourceU();
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}
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DbU::Unit Track::getSourcePosition ( vector<TrackElement*>::iterator isegment ) const
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{
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if ( isegment == _segments.end() ) return 0;
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return (*isegment)->getSourceU();
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}
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DbU::Unit Track::getMinimalPosition ( size_t index, unsigned int state ) const
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{
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Interval canonical;
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switch ( state & BeginMask ) {
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case BeginIsTrackMin: return _min;
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case BeginIsSegmentMin: return _segments[index]->getSourceU ();
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case BeginIsSegmentMax: return _segments[index]->getTargetU ();
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}
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cerr << Bug( " Track::getMinimalPosition(size_t,unsigned int) :"
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" invalid state value %ud.", state ) << endl;
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return _min;
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}
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DbU::Unit Track::getMaximalPosition ( size_t index, unsigned int state ) const
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{
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Interval canonical;
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switch ( state & EndMask ) {
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case EndIsTrackMax: return _max;
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case EndIsSegmentMin: return _segments[index ]->getSourceU ();
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case EndIsNextSegmentMin: if (index+1 >= getSize()) return _max;
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return _segments[index+1]->getSourceU ();
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case EndIsSegmentMax: return _segments[index ]->getTargetU ();
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}
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cerr << Bug( " Track::getMaximalPosition(size_t,unsigned int) :"
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" invalid state value %ud.", state ) << endl;
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return _min;
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}
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Interval Track::getOccupiedInterval ( size_t& begin ) const
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{
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if (begin == npos) return Interval();
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size_t seed = begin;
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Net* owner = _segments[seed]->getNet();
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Interval segmentInterval;
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Interval mergedInterval;
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_segments[seed]->getCanonical( mergedInterval );
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size_t i = seed;
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while ( --i != npos ) {
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if (_segments[i]->getNet() != owner) break;
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_segments[i]->getCanonical ( segmentInterval );
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if (segmentInterval.getVMax() >= mergedInterval.getVMin()) {
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mergedInterval.merge( segmentInterval );
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begin = i;
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}
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}
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i = seed;
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while ( ++i < _segments.size() ) {
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if (_segments[i]->getNet() != owner) break;
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_segments[i]->getCanonical( segmentInterval );
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if (segmentInterval.getVMin() > mergedInterval.getVMax()) break;
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mergedInterval.merge( segmentInterval );
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}
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return mergedInterval;
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}
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size_t Track::doRemoval ()
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{
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ltrace(148) << "Track::doRemoval() - " << this << endl;
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ltracein(148);
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size_t size = _segments.size();
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vector<TrackElement*>::iterator beginRemove
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= remove_if( _segments.begin(), _segments.end(), isDetachedSegment() );
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_segments.erase( beginRemove, _segments.end() );
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ltrace(148) << "After doRemoval " << this << endl;
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ltraceout(148);
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return size - _segments.size();
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}
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void Track::doReorder ()
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{
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ltrace(200) << "Track::doReorder() " << this << endl;
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if (not _segmentsValid ) {
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std::sort ( _segments.begin(), _segments.end(), SegmentCompare() );
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for ( size_t i=0 ; i < _segments.size() ; i++ ) {
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_segments[i]->setIndex ( i );
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}
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_segmentsValid = true;
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}
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if (not _markersValid ) {
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std::sort ( _markers.begin(), _markers.end(), TrackMarker::Compare() );
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_markersValid = true;
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}
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}
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unsigned int Track::checkOverlap ( unsigned int& overlaps ) const
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{
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if ( !_segments.size() ) return 0;
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size_t j = 0;
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for ( size_t i=0 ; i<_segments.size()-1 ; i++ ) {
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if (not _segments[i]->isBlockage() and (_segments[i]->getLayer() != getLayer()) ) {
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cerr << Error( " Track vs. Segment Layer discrepency:\n %s\n %s "
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, getString(this).c_str()
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, getString(_segments[i]).c_str() ) << endl;
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}
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if ( _segments[i]->getNet() == _segments[i+1]->getNet() ) {
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if ( _segments[i]->getSourceU() == _segments[i+1]->getSourceU() ) {
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if ( _segments[i]->getTargetU() < _segments[i+1]->getTargetU() ) {
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cerr << Error(" Invalid sorting length order in %s:\n %s\n %s "
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,getString(this).c_str()
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,getString(_segments[i ]).c_str()
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,getString(_segments[i+1]).c_str()) << endl;
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}
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}
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for ( j=i+1 ; (j<_segments.size()) && (_segments[i]->getNet() == _segments[j]->getNet()) ; j++ );
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} else {
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j = i+1;
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}
|
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|
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if ( (j<_segments.size())
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&& (_segments[i]->getTargetU() > _segments[j]->getSourceU()) ) {
|
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cerr << Error("Overlap in %s between:\n %s\n %s"
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,getString(this).c_str()
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,getString(_segments[i]).c_str()
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,getString(_segments[j]).c_str()) << endl;
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overlaps++;
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}
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}
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return overlaps;
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}
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string Track::_getString () const
|
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{
|
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return "<" + _getTypeName() + " "
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+ getString(getLayer()) + " @"
|
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+ DbU::getValueString(_axis) + " ["
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+ DbU::getValueString(_min) + ":"
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+ DbU::getValueString(_max) + "] ["
|
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+ getString(_segments.size()) + "/"
|
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+ getString(_segments.capacity())
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+ "]>";
|
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}
|
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|
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Record* Track::_getRecord () const
|
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{
|
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Record* record = new Record ( _getString() );
|
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record->add ( getSlot ( "_routingPlane", _routingPlane ) );
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record->add ( getSlot ( "_index" , &_index ) );
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record->add ( DbU::getValueSlot ( "_axis" , &_axis ) );
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record->add ( getSlot ( "_segments" , &_segments ) );
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return record;
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}
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} // Kite namespace.
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