classifier-mpath.cc
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:3k
- /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
- /*
- * Copyright (C) 1997 by the University of Southern California
- * $Id: classifier-mpath.cc,v 1.10 2005/08/25 18:58:01 johnh Exp $
- *
- * This 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.
- *
- * This 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 program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- *
- *
- * The copyright of this module includes the following
- * linking-with-specific-other-licenses addition:
- *
- * In addition, as a special exception, the copyright holders of
- * this module give you permission to combine (via static or
- * dynamic linking) this module with free software programs or
- * libraries that are released under the GNU LGPL and with code
- * included in the standard release of ns-2 under the Apache 2.0
- * license or under otherwise-compatible licenses with advertising
- * requirements (or modified versions of such code, with unchanged
- * license). You may copy and distribute such a system following the
- * terms of the GNU GPL for this module and the licenses of the
- * other code concerned, provided that you include the source code of
- * that other code when and as the GNU GPL requires distribution of
- * source code.
- *
- * Note that people who make modified versions of this module
- * are not obligated to grant this special exception for their
- * modified versions; it is their choice whether to do so. The GNU
- * General Public License gives permission to release a modified
- * version without this exception; this exception also makes it
- * possible to release a modified version which carries forward this
- * exception.
- *
- */
- #ifndef lint
- static const char rcsid[] =
- "@(#) $Header: /cvsroot/nsnam/ns-2/classifier/classifier-mpath.cc,v 1.10 2005/08/25 18:58:01 johnh Exp $ (USC/ISI)";
- #endif
- #include "classifier.h"
- class MultiPathForwarder : public Classifier {
- public:
- MultiPathForwarder() : ns_(0) {}
- virtual int classify(Packet*) {
- int cl;
- int fail = ns_;
- do {
- cl = ns_++;
- ns_ %= (maxslot_ + 1);
- } while (slot_[cl] == 0 && ns_ != fail);
- return cl;
- }
- private:
- int ns_;
- };
- static class MultiPathClass : public TclClass {
- public:
- MultiPathClass() : TclClass("Classifier/MultiPath") {}
- TclObject* create(int, const char*const*) {
- return (new MultiPathForwarder());
- }
- } class_multipath;