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#ifndef table_h
#define table_h
/*======================================================================*/
/*= CHANGES AND UPDATES =*/
/*======================================================================*/
/*= date person file subject =*/
/*=--------------------------------------------------------------------=*/
/*= =*/
/*= 260493 hua table.h created =*/
/*= =*/
/*======================================================================*/
#include "stdlib.h"
#include "stdio.h"
#include "string.h"
#include "errorhandling.h"
#include "xfile.h"
#include "lru.h"
#include "bool.h"
#include "io.h"
#include "objects.h"
/*----------------------------------------------------------------------*/
/* CLASS table (deklarations) */
/*----------------------------------------------------------------------*/
#define max_columns 20
#define max_rows 10000
#define rows_per_grab 10
#define col_type_int 1
#define col_type_float 2
#define col_type_text 3
#define col_type_point 4
#define col_type_cube 5
#define col_type_config 6
#define col_type_vector 7
#define col_type_plane 8
#define no_lru_candidate -1
class table
{public :
int number_of_columns;
int number_of_rows;
int column_length;
int id;
int data_size;
bool was_write_access;
bool is_lru;
int row_no;
lru *lru_queue;
int lru_size;
int column_type [max_columns];
int column_size [max_columns];
char column_name [max_columns][128];
int column_index [max_columns];
char *data;
char name [128];
char dir [128];
table (char dir [], char name [], bool &is_new, int lru_size = 0);
~table ();
void check_bound (int adr, int row_no, int column_no, char action []);
void save ();
void load ();
void rename (char new_dir [], char new_name []);
void rename (char new_name []);
void copy (table *destination);
int add_column (char name [], int type);
int column_no (char name []);
int num_columns ();
int candidate (bool &with_remove);
int freshest (int no);
int num_rows ();
int add_row ();
int insert_row (int row_no);
void delete_row (int row_no);
void clear ();
void access_row (int row_no);
int read_int (int row_no, int column_no);
float read_float (int row_no, int column_no);
char* read_text (int row_no, int column_no);
point read_point (int row_no, int column_no);
plane read_plane (int row_no, int column_no);
cube read_cube (int row_no, int column_no);
config read_config (int row_no, int column_no);
vector read_vector (int row_no, int column_no);
void write (int row_no, int column_no, int value);
void write (int row_no, int column_no, float value);
void write (int row_no, int column_no, double value);
void write (int row_no, int column_no, char value []);
void write (int row_no, int column_no, point value);
void write (int row_no, int column_no, plane value);
void write (int row_no, int column_no, cube value);
void write (int row_no, int column_no, config value);
void write (int row_no, int column_no, vector value);
int append (int column_no, int value);
int append (int column_no, float value);
int append (int column_no, double value);
int append (int column_no, char value []);
int append (int column_no, point value);
int append (int column_no, plane value);
int append (int column_no, cube value);
int append (int column_no, config value);
int append (int column_no, vector value);
};
/*----------------------------------------------------------------------*/
/* MODULE table handler (deklarations) */
/*----------------------------------------------------------------------*/
#define resident 0
#define paged 1
#define max_open_tables 5000
void open_table_handler (char global_table_dir [],
char local_table_dir []);
void close_table_handler (bool flush_buffers);
void dump_table_handler ();
void flush_table_handler ();
bool table_exists (char dir [], char name []);
table *table_open (char name [],
bool &is_new,
int paging_mode = paged,
int lru_size = 0);
void table_close (table *);
void table_rename (table *t, char new_name []);
void table_delete (table *t);
#endif
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