bbtqueue.h

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//#ifndef tqueue_h
//#define tqueue_h

#define COLLECT_TQueue_STATISTICS 1

class TQItem {
public:
    TQItem();
    virtual ~TQItem();
    bool check();
    int wleft() { return (left_?left_->w_:0); }
    int wright() { return (right_?right_->w_:0); }
    void t_iterate(void (*)(const TQItem*, int), int);
    bool unbalanced();
    void clear(){}
public:
    void* data_;
    double t_;
    TQItem* left_;
    TQItem* right_;
    TQItem* parent_;
    int w_;
};

class TQueue {
public:
    TQueue();
    virtual ~TQueue();
    
    TQItem* least(); // does not remove from TQueue
    double least_t();
    TQItem* insert(double t, void* data_);
    TQItem* find(double t);
    void remove(TQItem*);
    void move(TQItem*, double tnew);
    void move_least(double tnew);
    void print();
    void check(const char* errmess);
    void statistics();
    void insert1(double t, TQItem*);
    void remove1(TQItem*);
    void forall_callback(void (*)(const TQItem*, int));
private:
    void reverse(TQItem*);
    void new_least();
private:
    TQItem* least_;
    TQItem* root_;
#if COLLECT_TQueue_STATISTICS
private:
    unsigned long ninsert, nrem, nleast, nbal, ncmplxrem;
    unsigned long  ncompare, nleastsrch, nfind, nfindsrch, nmove, nfastmove;
#endif
};
//#endif