plc/machine.h

/* $Id$
    Copyright (C) 2008 Battelle Memorial Institute
    Defines the PLC machine
 */

#ifndef _MACHINE_H
#define _MACHINE_H

#include "gridlabd.h"
#include "comm.h"

typedef struct s_data {char *name; PROPERTYTYPE type; void *addr;} *PLCDATA;
typedef int (*PLCINIT)();
/* this structure must match the PLCDEV structure in plc/rt/include/plc.h */
typedef struct {
    unsigned int time;
    struct {
        void (*send)(class machine*,char*,void*,unsigned int);
        int (*recv)(class machine*,char *,void*,unsigned int);
    } comm;
} PLCDEV;
typedef int (*PLCCODE)(void*,double,PLCDEV*);
extern int load_library(char *, PLCCODE*, PLCINIT*, PLCDATA*);

class machine {
private:
    PLCDATA _data;  
    PLCINIT _init;  
    PLCCODE _code;  
    Queue _link;    
    class comm *net;        
    int wait;
public:
    machine();
    ~machine();
public:
    void send(Message *msg);
    Message *receive(void);
protected:
    int compile(char *source);
    int init(OBJECT *parent);
    int run(double dt);
    void connect(comm *ptr);
    void deliver(Message *msg);
    void send(char *to, void *msg, size_t len=0);

    friend class plc;
    friend class comm;
};

#endif

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GridLAB-D^TM Version 2.0

An open-source project initiated by the US Department of Energy