sam-t2/sam/cpus/vonk/ss/api/memsync/src/TsoEdge.cc

// ========== Copyright Header Begin ==========================================
//
// OpenSPARC T2 Processor File: TsoEdge.cc
// Copyright (c) 2006 Sun Microsystems, Inc.  All Rights Reserved.
// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
//
// The above named program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License version 2 as published by the Free Software Foundation.
//
// The above named program is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this work; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
//
// ========== Copyright Header End ============================================
/************************************************************************
**
**  Copyright (C) 2002, Sun Microsystems, Inc.
**
**  Sun considers its source code as an unpublished, proprietary
**  trade secret and it is available only under strict license provisions.
**  This copyright notice is placed here only to protect Sun in the event
**  the source is deemed a published work. Disassembly, decompilation,
**  or other means of reducing the object code to human readable form
**  is prohibited by the license agreement under which this code is
**  provided to the user or company in possession of this copy."
**
*************************************************************************/
#include "TsoEdge.h"
#include <sstream>

using namespace std;
using namespace Tso;
////////////////////////////////////////////////

TsoEdge::TsoEdge()
{
}

////////////////////////////////////////////////

TsoEdge::TsoEdge( const TsoEdge & orig )
{
  type_ = orig.type_;
  src_  = orig.src_;
  dst_  = orig.dst_;
}

////////////////////////////////////////////////

TsoEdge::~TsoEdge()
{
}

////////////////////////////////////////////////

const TsoEdge &
TsoEdge::operator=( const TsoEdge & rhs )
{

    return *this;
}

////////////////////////////////////////////////

bool
TsoEdge::operator==( const TsoEdge & rhs ) const
{
    return false;
}

////////////////////////////////////////////////

string
TsoEdge::toString() const
{
    ostringstream os;

    return os.str();
}

TsoEdge*
TsoEdge::addEdge (enum EDGE_TYPE type, TsoNode* src, TsoNode* dst)
{
  list<TsoEdge*>::iterator ii;
  TsoEdge* edge;

  ii = findEdge(src, dst, type);
  if ((ii != src->outEnd())) {
    return *ii; // find same type edge between these two nodes
  }

  edge = new TsoEdge();

  edge->type_= type;
  edge->src_= src;
  edge->dst_= dst;

  src->outPushFront(edge); // add this edge pointer to src's out edge group
  dst->inPushFront(edge);  // add this edge pointer to dst's in edge group

  return edge;
}

list<TsoEdge*>::iterator
TsoEdge::findEdge (TsoNode* src, TsoNode* dst, enum EDGE_TYPE type)
{
  list<TsoEdge*>::iterator ii;

  if (src->outSize() == 0) return src->outEnd();

  for (ii = src->outBegin(); ii != src->outEnd(); ii++) {
    if (((*ii)->dst_ == dst) && ((*ii)->getType() == type)) {
      return ii;
    }
  }

  return src->outEnd();
}