00001 /********************************************/ 00002 /* NS2 Simulator for IEEE 802.15.4 */ 00003 /* (per P802.15.4/D18) */ 00004 /*------------------------------------------*/ 00005 /* by: Jianliang Zheng */ 00006 /* (zheng@ee.ccny.cuny.edu) */ 00007 /* Myung J. Lee */ 00008 /* (lee@ccny.cuny.edu) */ 00009 /* ~~~~~~~~~~~~~~~~~~~~~~~~~ */ 00010 /* SAIT-CUNY Joint Lab */ 00011 /********************************************/ 00012 00013 // File: p802_15_4timer.h 00014 // Mode: C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t 00015 00016 // $Header: /cvsroot/nsnam/ns-2/wpan/p802_15_4timer.h,v 1.2 2007/01/30 05:00:52 tom_henderson Exp $ 00017 00018 /* 00019 * Copyright (c) 2003-2004 Samsung Advanced Institute of Technology and 00020 * The City University of New York. All rights reserved. 00021 * 00022 * Redistribution and use in source and binary forms, with or without 00023 * modification, are permitted provided that the following conditions 00024 * are met: 00025 * 1. Redistributions of source code must retain the above copyright 00026 * notice, this list of conditions and the following disclaimer. 00027 * 2. Redistributions in binary form must reproduce the above copyright 00028 * notice, this list of conditions and the following disclaimer in the 00029 * documentation and/or other materials provided with the distribution. 00030 * 3. All advertising materials mentioning features or use of this software 00031 * must display the following acknowledgement: 00032 * This product includes software developed by the Joint Lab of Samsung 00033 * Advanced Institute of Technology and The City University of New York. 00034 * 4. Neither the name of Samsung Advanced Institute of Technology nor of 00035 * The City University of New York may be used to endorse or promote 00036 * products derived from this software without specific prior written 00037 * permission. 00038 * 00039 * THIS SOFTWARE IS PROVIDED BY THE JOINT LAB OF SAMSUNG ADVANCED INSTITUTE 00040 * OF TECHNOLOGY AND THE CITY UNIVERSITY OF NEW YORK ``AS IS'' AND ANY EXPRESS 00041 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00042 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00043 * NO EVENT SHALL SAMSUNG ADVANCED INSTITUTE OR THE CITY UNIVERSITY OF NEW YORK 00044 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00045 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 00046 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00047 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00048 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00049 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00050 */ 00051 00052 00053 #ifndef p802_15_4timer_h 00054 #define p802_15_4timer_h 00055 00056 #include <scheduler.h> 00057 #include <assert.h> 00058 #include <math.h> 00059 00060 class Mac802_15_4; 00061 00062 //--base timer class for MAC sublayer--- 00063 00064 class Mac802_15_4Timer : public Handler 00065 { 00066 public: 00067 Mac802_15_4Timer(); 00068 void reset(void); 00069 virtual void handle(Event *e) = 0; 00070 virtual void start(double time); 00071 virtual void stop(void); 00072 virtual void pause(void) {assert(0);} //to be overloaded in subclass 00073 virtual void resume(void) {assert(0);} //to be overloaded in subclass 00074 inline int busy(void) {return busy_;} 00075 inline int paused(void) {return paused_;} 00076 inline double expire(void) //remaining time 00077 { 00078 return ((stime + wtime) - Scheduler::instance().clock()); 00079 } 00080 00081 protected: 00082 int busy_; 00083 int paused_; 00084 Event event; 00085 double stime; //start time 00086 double wtime; //waiting time 00087 }; 00088 00089 //---timers for MAC sublayer--- 00090 00091 class CsmaCA802_15_4; 00092 class macBackoffTimer : public Mac802_15_4Timer 00093 { 00094 public: 00095 macBackoffTimer(CsmaCA802_15_4 *csma); 00096 //void start(double time, double st, bool idle); 00097 void handle(Event *e); 00098 //void pause(void); 00099 //void resume(double beacontime); 00100 /* 00101 inline void slot_wtime(double beacontime) //calculate slot waiting time -- force timers to expire on slot boundries 00102 { 00103 double rmd; 00104 assert(slottime); 00105 rmd = fmod(Scheduler::instance().clock() + wtime - beacontime, slottime); 00106 if(rmd > 0.0) 00107 wtime += (slottime - rmd); 00108 else 00109 wtime -= rmd; //no effect 00110 } 00111 */ 00112 private: 00113 CsmaCA802_15_4 *csmaca; 00114 }; 00115 00116 class macBeaconOtherTimer : public Mac802_15_4Timer 00117 { 00118 public: 00119 macBeaconOtherTimer(CsmaCA802_15_4 *csma); 00120 void handle(Event *e); 00121 private: 00122 CsmaCA802_15_4 *csmaca; 00123 }; 00124 00125 class macDeferCCATimer : public Mac802_15_4Timer 00126 { 00127 public: 00128 macDeferCCATimer(CsmaCA802_15_4 *csma); 00129 void handle(Event *e); 00130 private: 00131 CsmaCA802_15_4 *csmaca; 00132 }; 00133 00134 class macTxOverTimer : public Mac802_15_4Timer 00135 { 00136 public: 00137 macTxOverTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00138 void handle(Event *e); 00139 private: 00140 Mac802_15_4 *mac; 00141 }; 00142 00143 class macTxTimer : public Mac802_15_4Timer 00144 { 00145 public: 00146 macTxTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00147 void handle(Event *e); 00148 private: 00149 Mac802_15_4 *mac; 00150 }; 00151 00152 class macExtractTimer : public Mac802_15_4Timer 00153 { 00154 public: 00155 macExtractTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;onlyCAP = false;} 00156 void backoffCAP(double time); 00157 void start(double time,bool onlycap); 00158 void stop(void); 00159 void handle(Event *e); 00160 void resume(void); 00161 private: 00162 Mac802_15_4 *mac; 00163 double leftTime; 00164 bool onlyCAP; 00165 }; 00166 00167 class macAssoRspWaitTimer : public Mac802_15_4Timer 00168 { 00169 public: 00170 macAssoRspWaitTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00171 void handle(Event *e); 00172 private: 00173 Mac802_15_4 *mac; 00174 }; 00175 00176 class macDataWaitTimer : public Mac802_15_4Timer 00177 { 00178 public: 00179 macDataWaitTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00180 void handle(Event *e); 00181 private: 00182 Mac802_15_4 *mac; 00183 }; 00184 00185 class macRxEnableTimer : public Mac802_15_4Timer 00186 { 00187 public: 00188 macRxEnableTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00189 void handle(Event *e); 00190 private: 00191 Mac802_15_4 *mac; 00192 }; 00193 00194 class macScanTimer : public Mac802_15_4Timer 00195 { 00196 public: 00197 macScanTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00198 void handle(Event *e); 00199 private: 00200 Mac802_15_4 *mac; 00201 }; 00202 00203 class macBeaconTxTimer : public Mac802_15_4Timer 00204 { 00205 public: 00206 macBeaconTxTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {macBeaconOrder_last = 15; mac = m;} 00207 void start(bool reset = false, bool fortx = false, double wt = 0.0); 00208 void handle(Event *e); 00209 private: 00210 bool forTX; 00211 unsigned char macBeaconOrder_last; 00212 Mac802_15_4 *mac; 00213 }; 00214 00215 class macBeaconRxTimer : public Mac802_15_4Timer 00216 { 00217 public: 00218 macBeaconRxTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;lastTime = 0.0;} 00219 void start(void); 00220 void handle(Event *e); 00221 private: 00222 Mac802_15_4 *mac; 00223 double lastTime; 00224 }; 00225 00226 class macBeaconSearchTimer : public Mac802_15_4Timer 00227 { 00228 public: 00229 macBeaconSearchTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;} 00230 void handle(Event *e); 00231 private: 00232 Mac802_15_4 *mac; 00233 }; 00234 00235 //2.31 change: Timer to control node shutdown and wakeup 00236 class macWakeupTimer : public Mac802_15_4Timer 00237 { 00238 public: 00239 macWakeupTimer(Mac802_15_4 *m) : Mac802_15_4Timer() {mac = m;lastTime = 0.0;} 00240 void start(void); 00241 void handle(Event *e); 00242 private: 00243 Mac802_15_4 *mac; 00244 double lastTime; 00245 }; 00246 00247 #endif 00248 00249 // End of file: p802_15_4timer.h
1.7.1