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Commit d3f7de6f authored by Daniel Agar's avatar Daniel Agar Committed by Lorenz Meier
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systemlib delete unused state_table.h

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/****************************************************************************
*
* Copyright (C) 2013-2014 PX4 Development Team. 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 PX4 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
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* 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
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****************************************************************************/
/**
* @file state_table.h
*
* Finite-State-Machine helper class for state table
* @author: Julian Oes <julian@oes.ch>
*/
#ifndef __SYSTEMLIB_STATE_TABLE_H
#define __SYSTEMLIB_STATE_TABLE_H
class StateTable
{
public:
typedef void (StateTable::*Action)();
struct Tran {
Action action;
unsigned nextState;
};
StateTable(Tran const *table, unsigned nStates, unsigned nSignals)
: myState(0), myTable(table), myNsignals(nSignals) {}
StateTable(const StateTable &) = delete;
StateTable &operator=(const StateTable &) = delete;
#define NO_ACTION &StateTable::doNothing
#define ACTION(_target) StateTable::Action(_target)
virtual ~StateTable() {}
void dispatch(unsigned const sig)
{
/* get transition using state table */
Tran const *t = myTable + myState * myNsignals + sig;
/* accept new state */
myState = t->nextState;
/* */
(this->*(t->action))();
}
void doNothing()
{
return;
}
protected:
unsigned myState;
private:
Tran const *myTable;
unsigned myNsignals;
};
#endif
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