partition.h

#ifndef __PARTITION_H_
#define __PARTITION_H_

#include "spade.h"
#include <sys/time.h>
extern struct timeval tp;
#define seconds(tm) gettimeofday(&tp,(struct timezone *)0);\
tm=tp.tv_sec+tp.tv_usec/1000000.0

extern int num_partitions;

extern void partition_alloc(char *dataf, char *idxf);
extern void partition_dealloc();
extern void partition_get_blk(int *MAINBUF, int p);
extern int partition_get_blk_sz(int p);
extern int partition_get_max_blksz();
extern int partition_get_idxsup(int it);
extern int partition_get_lidxsup(int idx, int it);
extern int partition_get_idx(int idx, int it);
extern int *partition_idx(int idx);
extern void partition_read_item(int *ival, int it);
extern void partition_lclread_item(int *ival, int pnum, int it);
extern void partition_get_minmaxcustid(int *backidx, int numit, int pnum,
                                       int &minv, int &maxv);

#define NOCLASS -1
class ClassInfo{
private:
   static int fd;     
   static int *clsaddr;
   static int *classes;
public:
   static int *CLASSCNT;
   static int *MINSUP;
   static ullint *TMPE;            // temporary variables to keep support
   static ullint *TMPM;            // counts during intersections
   static ullint *TMPL;
   
   
   ClassInfo(char use_class, char *classf);
   ~ClassInfo();
   static int getcnt(int cls=-1){ 
      if (cls == -1){
         int sum = 0;
         for (int i=0; i < NUMCLASS; i++)
            sum += CLASSCNT[i];
         return sum;
      }
      else return CLASSCNT[cls]; 
   }
   static int getcls(int idx){  
      if (fd == -1) 
         return 0;
      else return classes[idx]; 
   }
};

#endif// __PARTITION_H_