00001 /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */ 00002 /* 00003 * Copyright (c) Xerox Corporation 1997. All rights reserved. 00004 * 00005 * This program is free software; you can redistribute it and/or modify it 00006 * under the terms of the GNU General Public License as published by the 00007 * Free Software Foundation; either version 2 of the License, or (at your 00008 * option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, but 00011 * WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License along 00016 * with this program; if not, write to the Free Software Foundation, Inc., 00017 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 * 00019 * Linking this file statically or dynamically with other modules is making 00020 * a combined work based on this file. Thus, the terms and conditions of 00021 * the GNU General Public License cover the whole combination. 00022 * 00023 * In addition, as a special exception, the copyright holders of this file 00024 * give you permission to combine this file with free software programs or 00025 * libraries that are released under the GNU LGPL and with code included in 00026 * the standard release of ns-2 under the Apache 2.0 license or under 00027 * otherwise-compatible licenses with advertising requirements (or modified 00028 * versions of such code, with unchanged license). You may copy and 00029 * distribute such a system following the terms of the GNU GPL for this 00030 * file and the licenses of the other code concerned, provided that you 00031 * include the source code of that other code when and as the GNU GPL 00032 * requires distribution of source code. 00033 * 00034 * Note that people who make modified versions of this file are not 00035 * obligated to grant this special exception for their modified versions; 00036 * it is their choice whether to do so. The GNU General Public License 00037 * gives permission to release a modified version without this exception; 00038 * this exception also makes it possible to release a modified version 00039 * which carries forward this exception. 00040 */ 00041 00042 #ifndef ns_tbf_h 00043 #define ns_tbf_h 00044 00045 #include "connector.h" 00046 #include "timer-handler.h" 00047 00048 class TBF; 00049 00050 class TBF_Timer : public TimerHandler { 00051 public: 00052 TBF_Timer(TBF *t) : TimerHandler() { tbf_ = t;} 00053 00054 protected: 00055 virtual void expire(Event *e); 00056 TBF *tbf_; 00057 }; 00058 00059 00060 class TBF : public Connector { 00061 public: 00062 TBF(); 00063 ~TBF(); 00064 void timeout(int); 00065 protected: 00066 void recv(Packet *, Handler *); 00067 double getupdatedtokens(); 00068 double tokens_; //acumulated tokens 00069 double rate_; //token bucket rate 00070 int bucket_; //bucket depth 00071 int qlen_; 00072 double lastupdatetime_; 00073 PacketQueue *q_; 00074 TBF_Timer tbf_timer_; 00075 int init_; 00076 }; 00077 00078 #endif
1.7.1