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yap-6.3/library/tries/base_tries.h
2013-11-04 01:07:44 +00:00

149 lines
6.5 KiB
C

/*********************************************
File: base_tries.h
Author: Ricardo Rocha
Comments: Tries base module for Yap Prolog
version: $ID$
*********************************************/
/* --------------------------- */
/* Defines */
/* --------------------------- */
#define TRAVERSE_MODE_FORWARD 0
#define TRAVERSE_MODE_BACKWARD 1
/* --------------------------- */
/* Structs */
/* --------------------------- */
typedef struct trie_entry {
struct trie_node *top_trie_node;
struct trie_data *first_trie_data;
struct trie_data *last_trie_data;
struct trie_data *traverse_trie_data;
struct trie_entry *next;
struct trie_entry *previous;
} *TrEntry;
#define TrEntry_trie(X) ((X)->top_trie_node)
#define TrEntry_first_data(X) ((X)->first_trie_data)
#define TrEntry_last_data(X) ((X)->last_trie_data)
#define TrEntry_traverse_data(X) ((X)->traverse_trie_data)
#define TrEntry_next(X) ((X)->next)
#define TrEntry_previous(X) ((X)->previous)
typedef struct trie_data {
struct trie_entry *trie;
struct trie_node *leaf_trie_node;
struct trie_data *next;
struct trie_data *previous;
} *TrData;
#define TrData_trie(X) ((X)->trie)
#define TrData_leaf(X) ((X)->leaf_trie_node)
#define TrData_next(X) ((X)->next)
#define TrData_previous(X) ((X)->previous)
#define TYPE_TR_ENTRY struct trie_entry
#define TYPE_TR_DATA struct trie_data
#define SIZEOF_TR_ENTRY sizeof(TYPE_TR_ENTRY)
#define SIZEOF_TR_DATA sizeof(TYPE_TR_DATA)
#define AS_TR_ENTRY_NEXT(ADDR) (TrEntry)((unsigned long int)(ADDR) - sizeof(struct trie_node *) - 3 * sizeof(struct trie_data *))
#define AS_TR_DATA_NEXT(ADDR) (TrData)((unsigned long int)(ADDR) - sizeof(struct trie_entry *) - sizeof(struct trie_node *))
/* --------------------------- */
/* Macros */
/* --------------------------- */
#define new_trie_entry(TR_ENTRY, TR_NODE) \
{ new_struct(TR_ENTRY, TYPE_TR_ENTRY, SIZEOF_TR_ENTRY); \
TrEntry_trie(TR_ENTRY) = TR_NODE; \
TrEntry_first_data(TR_ENTRY) = NULL; \
TrEntry_last_data(TR_ENTRY) = AS_TR_DATA_NEXT(&TrEntry_first_data(TR_ENTRY)); \
TrEntry_traverse_data(TR_ENTRY) = NULL; \
TrEntry_next(TR_ENTRY) = FIRST_TRIE; \
TrEntry_previous(TR_ENTRY) = AS_TR_ENTRY_NEXT(&FIRST_TRIE); \
INCREMENT_MEMORY(TRIE_ENGINE, SIZEOF_TR_ENTRY); \
}
#define new_trie_data(TR_DATA, TR_ENTRY, TR_NODE) \
{ TrData first_data = TrEntry_first_data(TR_ENTRY); \
new_struct(TR_DATA, TYPE_TR_DATA, SIZEOF_TR_DATA); \
TrData_trie(TR_DATA) = TR_ENTRY; \
TrData_leaf(TR_DATA) = TR_NODE; \
TrData_next(TR_DATA) = NULL; \
if (first_data) { \
TrData last_data = TrEntry_last_data(TR_ENTRY); \
TrData_next(last_data) = TR_DATA; \
TrData_previous(TR_DATA) = last_data; \
} else { \
TrData_previous(TR_DATA) = AS_TR_DATA_NEXT(&TrEntry_first_data(TR_ENTRY)); \
TrEntry_first_data(TR_ENTRY) = TR_DATA; \
} \
TrEntry_last_data(TR_ENTRY) = TR_DATA; \
INCREMENT_MEMORY(TRIE_ENGINE, SIZEOF_TR_DATA); \
}
#define free_trie_entry(STR) \
{ free_struct(STR); \
DECREMENT_MEMORY(TRIE_ENGINE, SIZEOF_TR_ENTRY); \
}
#define free_trie_data(STR) \
{ free_struct(STR); \
DECREMENT_MEMORY(TRIE_ENGINE, SIZEOF_TR_DATA); \
}
/* --------------------------- */
/* API */
/* --------------------------- */
void trie_init_module(void);
void trie_data_load(TrNode node, YAP_Int depth, FILE *file);
void trie_data_copy(TrNode node_dest, TrNode node_source);
void trie_data_destruct(TrNode node);
TrEntry trie_open(void);
void trie_close(TrEntry trie);
void trie_close_all(void);
void trie_set_mode(YAP_Int mode);
YAP_Int trie_get_mode(void);
TrData trie_put_entry(TrEntry trie, YAP_Term entry);
TrData trie_check_entry(TrEntry trie, YAP_Term entry);
YAP_Term trie_get_entry(TrData data);
TrData trie_get_first_entry(TrEntry trie);
TrData trie_get_last_entry(TrEntry trie);
TrData trie_traverse_init(TrEntry trie, TrData init_data);
TrData trie_traverse_cont(TrEntry trie);
void trie_remove_entry(TrData data);
void trie_remove_subtree(TrData data);
void trie_join(TrEntry trie_dest, TrEntry trie_source);
void trie_intersect(TrEntry trie_dest, TrEntry trie_source);
YAP_Int trie_count_join(TrEntry trie1, TrEntry trie2);
YAP_Int trie_count_intersect(TrEntry trie1, TrEntry trie2);
void trie_save(TrEntry trie, FILE *file);
TrEntry trie_load(FILE *file);
void trie_stats(YAP_Int *memory, YAP_Int *tries, YAP_Int *entries, YAP_Int *nodes);
void trie_max_stats(YAP_Int *memory, YAP_Int *tries, YAP_Int *entries, YAP_Int *nodes);
void trie_usage(TrEntry trie, YAP_Int *entries, YAP_Int *nodes, YAP_Int *virtual_nodes);
void trie_print(TrEntry trie);
void trie_data_construct(TrNode node);
void trie_set_traverse_mode(YAP_Int mode);
YAP_Int trie_get_traverse_mode(void);
TrData trie_traverse_first(TrEntry trie);
TrData trie_traverse_next(TrData data);
void trie_disable_hash_table(void);
void trie_enable_hash_table(void);
YAP_Term trie_to_list(TrEntry trie);
#include "base_dbtries.h"