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96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
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/***************************************************************************
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rlplc.h - description
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-------------------
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begin : Tue Dec 11 2008
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copyright : (C) 2008 by R. Lehrig
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email : lehrig@t-online.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This library is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as *
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* published by the Free Software Foundation *
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* *
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***************************************************************************/
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#ifndef _RL_PLC_H_
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#define _RL_PLC_H_
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#include "rldefine.h"
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#include "rlsharedmemory.h"
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class rlPlcState
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{
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public:
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rlPlcState(int numInt=100, int numFloat=100, int numDouble=0, const char *shared_memory=NULL);
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virtual ~rlPlcState();
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int *i, *i_old;
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float *f, *f_old;
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double *d, *d_old;
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void clear();
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void rememberState();
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int intChanged(int index);
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int floatChanged(int index);
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int doubleChanged(int index);
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int intHasIncreased(int index);
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int floatHasIncreased(int index);
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int doubleHasIncreased(int index);
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int intHasDecreased(int index);
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int floatHasDecreased(int index);
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int doubleHasDecreased(int index);
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int deltaInt(int index);
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float deltaFloat(int index);
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double deltaDouble(int index);
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void set(int index, int bit);
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void clear(int index, int bit);
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int isSet(int index, int bit);
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int isClear(int index, int bit);
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int hasBeenSet(int index, int bit);
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int hasBeenCleared(int index, int bit);
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int maxInt();
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int maxFloat();
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int maxDouble();
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int getInt(int index);
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float getFloat(int index);
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double getDouble(int index);
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int getOldInt(int index);
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float getOldFloat(int index);
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double getOldDouble(int index);
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rlSharedMemory *shm;
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private:
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int max_int, max_float, max_double;
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};
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class rlPlcMem
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{
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public:
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rlPlcMem();
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virtual ~rlPlcMem();
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int i, i_old;
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float f, f_old;
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double d, d_old;
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void rememberState();
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int intChanged();
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int floatChanged();
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int doubleChanged();
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int intHasIncreased();
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int floatHasIncreased();
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int doubleHasIncreased();
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int intHasDecreased();
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int floatHasDecreased();
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int doubleHasDecreased();
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int deltaInt();
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float deltaFloat();
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double deltaDouble();
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void set(int bit);
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void clear(int bit);
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int isSet(int bit);
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int isClear(int bit);
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int hasBeenSet(int bit);
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int hasBeenCleared(int bit);
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};
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#endif
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