arf.cc
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:3k
- /*
- * Copyright (c) 2007 Regents of the SIGNET lab, University of Padova.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University of Padova (SIGNET lab) nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include "arf.h"
- #include"mac-802_11mr.h"
- static class ARFClass : public TclClass {
- public:
- ARFClass() : TclClass("RateAdapter/ARF") {}
- TclObject* create(int, const char*const*) {
- return (new ARF());
- }
- } class_arf;
- ARF::ARF()
- : nSuccess_(0), nFailed_(0),
- justTimedOut(false), justIncr(false)
- {
- bind("timeout_", &timeout_);
- bind("numSuccToIncrRate_", &numSuccToIncrRate_);
- bind("numFailToDecrRate_", &numFailToDecrRate_);
- bind("numFailToDecrRateAfterTout_", &numFailToDecrRateAfterTout_);
- bind("numFailToDecrRateAfterIncr_", &numFailToDecrRateAfterIncr_);
- }
- ARF::~ARF()
- {
- }
- int ARF::command(int argc, const char*const* argv)
- {
-
- // Add TCL commands here...
- // Fallback for unknown commands
- return RateAdapter::command(argc, argv);
- }
- void ARF::counterEvent(CounterId id)
- {
- if(debug_>3)
- cerr << "ARF::counterEvent()" << endl;
- switch(id)
- {
- case ID_MPDUTxSuccessful :
- TxSuccessfulAction();
- break;
- case ID_ACKFailed:
- case ID_RTSFailed:
-
- TxFailedAction();
- break;
- default:
- break;
-
- }
- }
- void ARF::TxSuccessfulAction()
- {
- nSuccess_++;
- nFailed_ = 0;
- justTimedOut = 0;
- justIncr = 0;
-
- if(nSuccess_ == numSuccToIncrRate_)
- {
- if(incrMode() == 0)
- {
- resched(timeout_);
- justIncr = 1;
- }
- nSuccess_ = 0;
- }
- }
- void ARF::TxFailedAction()
- {
- nFailed_++;
- nSuccess_ = 0;
- if ((justIncr && (nFailed_ >= numFailToDecrRateAfterIncr_))
- || (justTimedOut && (nFailed_ >= numFailToDecrRateAfterTout_))
- || (nFailed_ >= numFailToDecrRate_))
- {
- if (decrMode() == 0)
- {
- resched(timeout_);
- }
- nFailed_ = 0;
- justTimedOut = 0;
- justIncr = 0;
- }
- }
- void ARF::expire(Event *e)
- {
- nFailed_ = 0;
- justIncr = 0;
- if(incrMode())
- {
- justIncr = 1;
- resched(timeout_);
- }
- nSuccess_ = 0;
- }
- void ARF::chBusy(double)
- {
- }