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/* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */
/*
* Copyright (C) 1999 by the University of Southern California
* $Id: fsm.h,v 1.4 2005/08/25 18:58:02 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.
*
*/
/*
* Contributed by Polly Huang (USC/ISI), http://www-scf.usc.edu/~bhuang
*
* @(#) $Header: /cvsroot/nsnam/ns-2/common/fsm.h,v 1.4 2005/08/25 18:58:02 johnh Exp $ (LBL)
*/
#include "scheduler.h"
#define RTT 1
#define TIMEOUT 2
class FSMState {
protected:
friend class FSM;
void number_all();
void print_all(int level);
void print_all_stats(int desired_pkts, int pkts = 0,
int rtts = 0, int timeouts = 0,
int ps = 0, int qs = 0,
int num_states = 0,
int num_state_names = 0);
void reset_all_processed();
bool processed() { return print_i_ < 0; }
public:
FSMState() : print_i_(0) {};
/* number of packets in this batch of transmission */
int batch_size_;
/* time to make transition from previous state to this one
* (either RTT or TIMEOUT) */
int transition_[17];
/* next states if dropping packet #1-16, 0 for none */
FSMState* drop_[17];
int print_i_; // printing index (processed if negative)
};
class FSM : public TclObject {
public:
FSM() {};
inline FSMState* start_state() { // starting state
return (start_state_);
}
static FSM& instance() {
return (*instance_); // general access to scheduler
}
static void print_FSM(FSMState* state);
static void print_FSM_stats(FSMState* state, int n);
protected:
FSMState* start_state_;
static FSM* instance_;
};
class TahoeAckFSM : public FSM {
public:
TahoeAckFSM();
inline FSMState* start_state() { // starting state
return (start_state_);
}
static TahoeAckFSM& instance() {
return (*instance_); // general access to TahoeAckFSM
}
protected:
FSMState* start_state_;
static TahoeAckFSM* instance_;
};
class RenoAckFSM : public FSM {
public:
RenoAckFSM();
inline FSMState* start_state() { // starting state
return (start_state_);
}
static RenoAckFSM& instance() {
return (*instance_); // general access to TahoeAckFSM
}
protected:
FSMState* start_state_;
static RenoAckFSM* instance_;
};
class TahoeDelAckFSM : public FSM {
public:
TahoeDelAckFSM();
inline FSMState* start_state() { // starting state
return (start_state_);
}
static TahoeDelAckFSM& instance() {
return (*instance_); // general access to TahoeAckFSM
}
protected:
FSMState* start_state_;
static TahoeDelAckFSM* instance_;
};
class RenoDelAckFSM : public FSM {
public:
RenoDelAckFSM();
inline FSMState* start_state() { // starting state
return (start_state_);
}
static RenoDelAckFSM& instance() {
return (*instance_); // general access to TahoeAckFSM
}
protected:
FSMState* start_state_;
static RenoDelAckFSM* instance_;
};
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