uFsm.hpp

Go to the documentation of this file.

#if !defined(_UFSM_H)
#define _UFSM_H

class uFsmEvent {
public:
    virtual ~uFsmEvent();

    uFsmEvent(int32_t id, void *p) {
        id_ = id;
        parameters_ = p;
    };
    int32_t id_;          
    void *parameters_;    
};

typedef std::list<uFsmEvent *> EvLst;

class uFsm {
public:
    uFsm( uEventHandler *trans, uint32_t maxNumTransitions, uint32_t initialState);
    virtual ~uFsm(void);

    uint32_t defineTransition(uint32_t sourceState, uint32_t destinationState,
                              uint32_t event, uint32_t index);
    bool control(uint32_t event, void *parameters = NULL);
    void generateEvent(uint32_t event, void *parameters = NULL);

private:

    void insertInQueue(uint32_t event, void *parameters);
    int32_t hash(uint32_t sourceState, uint32_t event);
    int32_t hash(uint32_t event);

    typedef struct {
        uint32_t source_state;
        uint32_t destination_state;
        uint32_t event;
        int32_t  index;
    } TransitionType;

    TransitionType *arrayTrans_; 
    uint32_t maxNumTransitions_; 
    uint32_t currentState_;      
    uEventHandler *handler_;     
    EvLst Evlst_;
};

#endif