706 lines
22 KiB
C
706 lines
22 KiB
C
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: myddas_sqlite3.c *
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* Last rev: 22/03/05 *
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* mods: *
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* comments: Predicates for comunicating with a sqlite3 database system *
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* *
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*************************************************************************/
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#include <sqlite3.h>
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#include "Yap.h"
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#include "YapEval.h"
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#include "YapText.h"
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#include "Yatom.h"
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#include "cut_c.h"
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#include "myddas.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef MYDDAS_STATS
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#include "myddas_statistics.h"
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#include "myddas_structs.h"
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#endif
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//#include "myddas_wkb2prolog.h"
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#define CALL_SQLITE(t, f) \
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{ \
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int i; \
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i = sqlite3_##f; \
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if (i != SQLITE_OK) { \
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Yap_ThrowError(EVALUATION_ERROR_DBMS, MkStringTerm(#f), "%s failed with status %d: %s\n", \
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#f, i, sqlite3_errmsg(db)); \
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} \
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}
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#define CALL_SQLITE_EXPECT(f, x) \
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{ \
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int i; \
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i = sqlite3_##f; \
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if (i != SQLITE_##x) { \
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Yap_ThrowError(EVALUATION_ERROR_DBMS, MkStringTerm(#f), "%s failed with status %d: %s\n", #f, i, \
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sqlite3_errmsg(db)); \
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exit(1); \
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} \
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}
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static Int null_id = 0;
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typedef struct result_set {
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sqlite3_stmt *stmt;
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sqlite3 *db;
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int nrows;
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int length;
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} resultSet;
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static void Yap_InitMYDDAS_SQLITE3Preds(void);
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static void Yap_InitBackMYDDAS_SQLITE3Preds(void);
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static Int c_sqlite3_connect(USES_REGS1);
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static Int c_sqlite3_disconnect(USES_REGS1);
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static Int c_sqlite3_number_of_fields(USES_REGS1);
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static Int c_sqlite3_get_attributes_types(USES_REGS1);
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static Int c_sqlite3_query(USES_REGS1);
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static Int c_sqlite3_table_write(USES_REGS1);
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static Int c_sqlite3_row(USES_REGS1);
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static Int c_sqlite3_get_fields_properties(USES_REGS1);
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static Int c_sqlite3_get_next_result_set(USES_REGS1);
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static Int c_sqlite3_get_database(USES_REGS1);
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static Int c_sqlite3_change_database(USES_REGS1);
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static Int c_sqlite3_connect(USES_REGS1) {
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Term arg_file = Deref(ARG1);
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Term arg_db = ARG4;
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MYDDAS_UTIL_CONNECTION new = NULL;
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sqlite3 *db;
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const char *file = AtomName(AtomOfTerm(arg_file));
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__android_log_print(ANDROID_LOG_INFO, "YAPDroid", "connect sqlite3 %s",file);
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CALL_SQLITE(ARG1, open(file, &db));
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__android_log_print(ANDROID_LOG_INFO, "YAPDroid", "connect sqlite3 %p",db);
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if (!Yap_unify(arg_db, MkAddressTerm(db))) {
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return false;
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} else {
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/* Criar um novo no na lista de ligacoes*/
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new = myddas_util_add_connection(db, NULL, API_SQLITE3);
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if (new == NULL) {
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#ifdef DEBUG
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fprintf(stderr, "ERROR: ** c_db_my_connect ** Error allocating memory\n");
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#endif
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return false;
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}
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return true;
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}
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}
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#ifdef MYDDAS_STATS
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static MYDDAS_STATS_TIME myddas_stat_init_query(sqlite3 *db) {
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MYDDAS_UTIL_connecTION node = myddas_util_search_connection(db);
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MyddasULInt count = 0;
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/* Count the number of querys made to the server */
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MyddasULInt number_querys;
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MYDDAS_STATS_CON_GET_NUMBER_QUERIES_MADE(node, number_querys);
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MYDDAS_STATS_CON_SET_NUMBER_QUERIES_MADE(node, ++number_querys);
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MYDDAS_STATS_CON_GET_NUMBER_QUERIES_MADE_COUNT(node, count);
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MYDDAS_STATS_CON_SET_NUMBER_QUERIES_MADE_COUNT(node, ++count);
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/* Measure time spent by the sqlite3 Server
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processing the SQL Query */
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return myddas_stats_walltime();
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return NULL;
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}
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static MYDDAS_STATS_TIME myddas_stat_end_query(MYDDAS_STATS_TIME start) {
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MYDDAS_STATS_TIME diff = NULL;
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/* Measure time spent by the sqlite3 Server
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processing the SQL Query */
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end = myddas_stats_walltime();
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(diff, time_copy);
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myddas_stats_subtract_time(diff, end, start);
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diff = myddas_stats_time_copy_to_final(diff);
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MYDDAS_FREE(end, struct myddas_stats_time_struct);
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MYDDAS_FREE(start, struct myddas_stats_time_struct);
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MYDDAS_STATS_CON_GET_TOTAL_TIME_DBSERVER(node, total_time);
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/* Automacally updates the MYDDAS_STRUCTURE */
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myddas_stats_add_time(total_time, diff, total_time);
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MYDDAS_STATS_CON_GET_TOTAL_TIME_DBSERVER_COUNT(node, count);
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MYDDAS_STATS_CON_SET_TOTAL_TIME_DBSERVER_COUNT(node, ++count);
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MYDDAS_STATS_TIME time = NULL;
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MYDDAS_STATS_CON_GET_LAST_TIME_DBSERVER(node, time);
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myddas_stats_move_time(diff, time);
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MYDDAS_STATS_CON_GET_LAST_TIME_DBSERVER_COUNT(node, count);
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MYDDAS_STATS_CON_SET_LAST_TIME_DBSERVER_COUNT(node, ++count);
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return diff;
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}
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/* measure transfer time */
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static void myddas_stat_transfer_query(MYDDAS_STATS_TIME diff) {
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/* Measure time spent by the sqlite3 Server
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transferring the result of the last query
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back to the client */
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start = myddas_stats_walltime();
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/* Measure time spent by the sqlite3 Server
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transferring the result of the last query
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back to the client */
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end = myddas_stats_walltime();
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MYDDAS_STATS_INITIALIZE_TIME_STRUCT(diff, time_copy);
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myddas_stats_subtract_time(diff, end, start);
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diff = MYDDAS_STATS_TIME_copy_to_final(diff);
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MYDDAS_FREE(end, struct myddas_stats_time_struct);
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MYDDAS_FREE(start, struct myddas_stats_time_struct);
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MYDDAS_STATS_CON_GET_TOTAL_TIME_TRANSFERING(node, total_time);
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/* Automacally updates the MYDDAS_STRUCTURE */
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myddas_stats_add_time(total_time, diff, total_time);
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MYDDAS_STATS_CON_GET_TOTAL_TIME_TRANSFERING_COUNT(node, count);
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MYDDAS_STATS_CON_SET_TOTAL_TIME_TRANSFERING_COUNT(node, ++count);
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time = NULL;
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MYDDAS_STATS_CON_GET_LAST_TIME_TRANSFERING(node, time);
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MYDDAS_STATS_CON_GET_LAST_TIME_TRANSFERING_COUNT(node, count);
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MYDDAS_STATS_CON_SET_LAST_TIME_TRANSFERING_COUNT(node, ++count);
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myddas_stats_move_time(diff, time);
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/* Measure the number of Rows returned from the server */
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if (res_set != NULL) {
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/* With an INSERT statement, sqlite3_(use or store)_result()
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returns a NULL pointer*/
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/* This is only works if we use sqlite3_store_result */
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MyddasUInt numberRows = sqlite3_num_rows(res_set);
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MyddasUInt rows;
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myddas_stat_transfer_query(diff);
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MYDDAS_STATS_CON_GET_TOTAL_ROWS(node, rows);
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numberRows = numberRows + rows;
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MYDDAS_STATS_CON_SET_TOTAL_ROWS(node, numberRows);
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MYDDAS_STATS_CON_GET_TOTAL_ROWS_COUNT(node, count);
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MYDDAS_STATS_CON_SET_TOTAL_ROWS_COUNT(node, ++count);
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/* Calculate the ammount of data sent by the server */
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MyddasUInt total, number_fields = sqlite3_num_fields(res_set);
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sqlite3_ROW row;
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MyddasULInt i;
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total = 0;
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while ((row = sqlite3_fetch_row(res_set)) != NULL) {
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sqlite3_field_seek(res_set, 0);
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for (i = 0; i < number_fields; i++) {
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if (row[i] != NULL)
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total = total + strlen(row[i]);
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}
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}
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MYDDAS_STATS_CON_SET_LAST_BYTES_TRANSFERING_FROM_DBSERVER(node, total);
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MYDDAS_STATS_CON_GET_LAST_BYTES_TRANSFERING_FROM_DBSERVER_COUNT(node,
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count);
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MYDDAS_STATS_CON_SET_LAST_BYTES_TRANSFERING_FROM_DBSERVER_COUNT(node,
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++count);
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MyddasUInt bytes = 0;
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MYDDAS_STATS_CON_GET_TOTAL_BYTES_TRANSFERING_FROM_DBSERVER(node, bytes);
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total = total + bytes;
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MYDDAS_STATS_CON_SET_TOTAL_BYTES_TRANSFERING_FROM_DBSERVER(node, total);
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MYDDAS_STATS_CON_GET_TOTAL_BYTES_TRANSFERING_FROM_DBSERVER_COUNT(node,
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count);
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MYDDAS_STATS_CON_SET_TOTAL_BYTES_TRANSFERING_FROM_DBSERVER_COUNT(node,
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++count);
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}
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}
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#endif
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/* db_query: SQLQuery x ResultSet x connection */
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static Int c_sqlite3_query(USES_REGS1) {
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Term arg_sql_query = Deref(ARG1);
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Term arg_result_set = Deref(ARG2);
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Term arg_db = Deref(ARG3);
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// Term arg_mode = Deref(ARG4); // ignored by SQLite3
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Term arg_arity = Deref(ARG5);
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const char *sql = AtomName(AtomOfTerm(arg_sql_query));
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sqlite3 *db = AddressOfTerm(arg_db);
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sqlite3_stmt *stmt;
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#if MYDDAS_STATS
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MYDDAS_STATS_TIME start, end;
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#endif
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struct result_set *rs = malloc(sizeof(struct result_set));
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if (!rs)
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return FALSE;
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rs->db = db;
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#if MYDDAS_STATS
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start = myddas_stat_init_query(db);
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#endif
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// printf("Query %s\n", sql);
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/* Send query to server and process it */
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// Leave data for extraction
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CALL_SQLITE(ARG1, prepare_v2(db, sql, -1, &stmt, NULL));
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rs->stmt = stmt;
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rs->nrows = -1;
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rs->length = sqlite3_column_count(stmt);
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if (!Yap_unify(arg_arity, MkIntegerTerm(rs->length))) {
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free(rs);
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return FALSE;
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}
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if (!Yap_unify(arg_result_set, MkAddressTerm(rs))) {
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free(rs);
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return false;
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}
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return true;
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}
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static Int c_sqlite3_number_of_fields(USES_REGS1) {
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Term arg_relation = Deref(ARG1);
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Term arg_db = Deref(ARG2);
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Term arg_fields = ARG3;
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const char *relation = AtomName(AtomOfTerm(arg_relation));
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sqlite3 *db = AddressOfTerm(arg_db);
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sqlite3_stmt *stmt;
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__android_log_print(ANDROID_LOG_INFO, "YAPDroid", " sqlite3 relation %s",relation);
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char sql[256];
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sprintf(sql, "SELECT * FROM `%s`", relation);
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/* executar a query SQL */
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CALL_SQLITE(ARG1, prepare_v2(db, sql, -1, &stmt, NULL));
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int fields = sqlite3_column_count(stmt);
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CALL_SQLITE(ARG1, finalize(stmt));
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__android_log_print(ANDROID_LOG_INFO, "YAPDroid", " sqlite3 fields %d",fields);
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return Yap_unify(arg_fields, MkIntegerTerm(fields));
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}
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/* db_get_attributes_types: RelName x connection -> TypesList */
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static Int c_sqlite3_get_attributes_types(USES_REGS1) {
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Term arg_relation = Deref(ARG1);
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Term arg_db = Deref(ARG2);
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Term list, tf, *tfp = &tf;
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const char *relation = AtomName(AtomOfTerm(arg_relation));
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sqlite3 *db = (sqlite3 *)IntegerOfTerm(arg_db);
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char sql[256];
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int row;
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__android_log_print(ANDROID_LOG_INFO, "YAPDroid", " sqlite3 reelation %s get_attributes",relation);
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sqlite3_stmt *stmt;
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sprintf(sql, "SELECT * FROM `%s`", relation);
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/* executar a query SQL */
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CALL_SQLITE(MkStringTerm(sql), prepare_v2(db, sql, -1, &stmt, NULL));
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int fields = sqlite3_column_count(stmt);
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for (row = 0; row < fields; row++) {
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const char *tm;
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list = Yap_MkNewPairTerm();
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*tfp = list;
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RepPair(list)[0] =
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MkAtomTerm(Yap_LookupAtom(sqlite3_column_name(stmt, row)));
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tfp = RepPair(list) + 1;
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int type = sqlite3_column_type(stmt, row);
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switch (type) {
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case SQLITE_INTEGER:
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tm = "integer";
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break;
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case SQLITE_FLOAT:
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tm = "real";
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break;
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case SQLITE_TEXT:
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tm = "string";
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break;
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case SQLITE_BLOB:
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tm = "blob";
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break;
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case SQLITE_NULL:
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tm = "";
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break;
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default:
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tm = "?";
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break;
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}
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__android_log_print(ANDROID_LOG_INFO, "YAPDroid", " sqlite3 attributes %s:%s ",sqlite3_column_name(stmt, row),tm);
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list = Yap_MkNewPairTerm();
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*tfp = list;
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RepPair(list)[0] = MkAtomTerm(Yap_LookupAtom(tm));
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tfp = RepPair(list) + 1;
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tfp = RepPair(list) + 1;
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}
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*tfp = TermNil;
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CALL_SQLITE(ARG1, finalize(stmt));
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return Yap_unify(tf, ARG3);
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}
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/* db_disconnect */
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static Int c_sqlite3_disconnect(USES_REGS1) {
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Term arg_db = Deref(ARG1);
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sqlite3 *db = (sqlite3 *)IntegerOfTerm(arg_db);
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if ((myddas_util_search_connection(db)) != NULL) {
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myddas_util_delete_connection(db);
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sqlite3_close(db);
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return TRUE;
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} else {
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return FALSE;
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}
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}
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/* db_table_write: Result Set */
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static Int c_sqlite3_table_write(USES_REGS1) {
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/*
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Term arg_res_set = Deref(ARG1);
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sqlite3_RES *res_set = (sqlite3_RES *) IntegerOfTerm(arg_res_set);
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mydas_util_table_write(res_set);
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sqlite3_free_result(res_set);
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*/
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return TRUE;
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}
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static Int c_sqlite3_get_fields_properties(USES_REGS1) {
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Term nome_relacao = Deref(ARG1);
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Term arg_db = Deref(ARG2);
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Term fields_properties_list = Deref(ARG3);
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Term head, list;
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const char *relation = AtomName(AtomOfTerm(nome_relacao));
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char sql[256];
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Int num_fields, i;
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sqlite3 *db = (sqlite3 *)(IntegerOfTerm(arg_db));
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sqlite3_stmt *stmt;
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sprintf(sql, "SELECT * FROM `%s`", relation);
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/* executar a query SQL */
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// printf(" SQL 4: %s\n", sql);
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CALL_SQLITE(ARG1, prepare_v2(db, sql, -1, &stmt, NULL));
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Functor functor = Yap_MkFunctor(Yap_LookupAtom("property"), 4);
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Term properties[4];
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list = fields_properties_list;
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num_fields = sqlite3_column_count(stmt);
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for (i = 0; i < num_fields; i++) {
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int not_null, prim, auto_inc;
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head = HeadOfTerm(list);
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const char *col = sqlite3_column_name(stmt, i);
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properties[0] = MkAtomTerm(Yap_LookupAtom(col));
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CALL_SQLITE(properties[0],
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table_column_metadata(db, NULL, relation, col, NULL, NULL,
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¬_null, &prim, &auto_inc));
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properties[1] = MkIntegerTerm(not_null); // Can't be NULL
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properties[2] = MkIntegerTerm(prim); // It''s a primary key
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properties[3] = MkIntegerTerm(auto_inc);
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list = TailOfTerm(list);
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if (!Yap_unify(head, Yap_MkApplTerm(functor, 4, properties))) {
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return FALSE;
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}
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}
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sqlite3_finalize(stmt);
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return TRUE;
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}
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/* c_sqlite3_get_next_result_set: connection * NextResSet */
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static Int c_sqlite3_get_next_result_set(USES_REGS1) {
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Term arg_db = Deref(ARG1);
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Term arg_next_res_set = Deref(ARG2);
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sqlite3 *db = (sqlite3 *)(IntegerOfTerm(arg_db));
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sqlite3_stmt *stmt;
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if ((stmt = sqlite3_next_stmt(db, NULL)) != NULL) {
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struct result_set *rs = malloc(sizeof(struct result_set));
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if (!rs)
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return FALSE;
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rs->stmt = stmt;
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rs->nrows = -1;
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rs->length = sqlite3_column_count(stmt);
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rs->db = db;
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Yap_unify(arg_next_res_set, MkAddressTerm(rs));
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}
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return TRUE;
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}
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static Int c_sqlite3_get_database(USES_REGS1) {
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Term arg_con = Deref(ARG1);
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Term arg_database = Deref(ARG2);
|
|
|
|
if (!Yap_unify(arg_database, arg_con))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static Int c_sqlite3_change_database(USES_REGS1) {
|
|
/* no-op for now */
|
|
return TRUE;
|
|
}
|
|
|
|
typedef struct row_state {
|
|
struct result_set *res_set;
|
|
int count;
|
|
} ROW_STATE;
|
|
|
|
static Int c_sqlite3_row_terminate(USES_REGS1) {
|
|
struct row_state *rs = AddressOfTerm(Deref(ARG1));
|
|
struct result_set *res_set = rs->res_set;
|
|
sqlite3 *db = res_set->db;
|
|
// no more data
|
|
CALL_SQLITE(Deref(ARG1), finalize(res_set->stmt));
|
|
free(res_set);
|
|
free(rs);
|
|
return true;
|
|
}
|
|
|
|
/* db_row: ResultSet x Arity_ListOfArgs x ListOfArgs -> */
|
|
static Int c_sqlite3_row_initialise(USES_REGS1) {
|
|
#ifdef MYDDAS_STATS
|
|
/* Measure time used by the */
|
|
/* c_sqlite3_row function */
|
|
// MYDDAS_STATS_TIME start,end,total_time,diff;
|
|
MyddasULInt count = 0;
|
|
start = myddas_stats_walltime();
|
|
#endif
|
|
Term arg_result_set = Deref(ARG1);
|
|
struct result_set *res_set;
|
|
struct row_state *rs = malloc(sizeof(struct row_state));
|
|
if (rs == NULL) {
|
|
Yap_Error(RESOURCE_ERROR_HEAP, ARG1, "sqlite3_row");
|
|
} else {
|
|
if (!Yap_unify(ARG2, MkAddressTerm(rs)))
|
|
return false;
|
|
}
|
|
|
|
if (IsVarTerm(arg_result_set)) {
|
|
if (!c_sqlite3_query(PASS_REGS1)) {
|
|
return false;
|
|
}
|
|
arg_result_set = Deref(ARG1);
|
|
}
|
|
res_set = AddressOfTerm(arg_result_set);
|
|
rs->res_set = res_set;
|
|
rs->count = 0;
|
|
return true;
|
|
}
|
|
|
|
/* db_row: ResultSet x Arity_ListOfArgs x ListOfArgs -> */
|
|
static Int c_sqlite3_row(USES_REGS1) {
|
|
#ifdef MYDDAS_STATS
|
|
/* Measure time used by the */
|
|
/* c_sqlite3_row function */
|
|
// MYDDAS_STATS_TIME start,end,total_time,diff;
|
|
MyddasULInt count = 0;
|
|
start = myddas_stats_walltime();
|
|
#endif
|
|
Term arg_arity = Deref(ARG2);
|
|
Term arg_list_args = Deref(ARG3);
|
|
Int rc = TRUE;
|
|
struct row_state *rs = AddressOfTerm(Deref(ARG4));
|
|
struct result_set *res_set = rs->res_set;
|
|
Term head, list, null_atom[1];
|
|
Int i, arity;
|
|
list = arg_list_args;
|
|
arity = IntegerOfTerm(arg_arity);
|
|
sqlite3 *db = res_set->db;
|
|
|
|
// busy-waiting
|
|
int res;
|
|
if ((res = sqlite3_step(res_set->stmt)) == SQLITE_BUSY)
|
|
Yap_Error(SYSTEM_ERROR_INTERNAL, ARG1,
|
|
"sqlite3_row deadlocked (SQLITE_BUSY)");
|
|
;
|
|
if (res == SQLITE_DONE) {
|
|
#ifdef MYDDAS_STATS
|
|
end = myddas_stats_walltime();
|
|
|
|
MYDDAS_STATS_INITIALIZE_TIME_STRUCT(diff, time_copy);
|
|
myddas_stats_subtract_time(diff, end, start);
|
|
diff = myddas_stats_time_copy_to_final(diff);
|
|
|
|
MYDDAS_FREE(end, struct myddas_stats_time_struct);
|
|
MYDDAS_FREE(start, struct myddas_stats_time_struct);
|
|
|
|
MYDDAS_STATS_GET_DB_ROW_FUNCTION(total_time);
|
|
myddas_stats_add_time(total_time, diff, total_time);
|
|
MYDDAS_STATS_SET_DB_ROW_FUNCTION_COUNT(++rs->count);
|
|
|
|
MYDDAS_FREE(diff, struct myddas_stats_time_struct);
|
|
#endif /* MYDDAS_STATS */
|
|
cut_fail(); /* This macro already does a return FALSE */
|
|
|
|
} else if (res == SQLITE_ROW) {
|
|
list = arg_list_args;
|
|
Term tf = 0;
|
|
for (i = 0; i < arity; i++) {
|
|
/* convert data types here */
|
|
head = HeadOfTerm(list);
|
|
list = TailOfTerm(list);
|
|
|
|
int type = sqlite3_column_type(res_set->stmt, i);
|
|
switch (type) {
|
|
case SQLITE_INTEGER:
|
|
tf = Yap_Mk64IntegerTerm(sqlite3_column_int64(res_set->stmt, i));
|
|
break;
|
|
case SQLITE_FLOAT:
|
|
tf = MkFloatTerm(sqlite3_column_double(res_set->stmt, i));
|
|
break;
|
|
case SQLITE_TEXT:
|
|
tf = MkAtomTerm(Yap_LookupAtom(
|
|
(const char *)sqlite3_column_text(res_set->stmt, i)));
|
|
break;
|
|
case SQLITE_BLOB: {
|
|
size_t bytes = sqlite3_column_bytes(res_set->stmt, i);
|
|
void *pt;
|
|
tf = Yap_AllocExternalDataInStack(EXTERNAL_BLOB, bytes, &pt);
|
|
memmove(pt, sqlite3_column_blob(res_set->stmt, i), bytes);
|
|
} break;
|
|
case SQLITE_NULL:
|
|
null_atom[0] = MkIntegerTerm(null_id++);
|
|
tf = Yap_MkApplTerm(Yap_MkFunctor(Yap_LookupAtom("null"), 1), 1,
|
|
null_atom);
|
|
break;
|
|
}
|
|
if (!Yap_unify(head, tf))
|
|
rc = FALSE;
|
|
}
|
|
#ifdef MYDDAS_STATS
|
|
end = myddas_stats_walltime();
|
|
|
|
myddas_stats_subtract_time(diff, end, start);
|
|
diff = myddas_stats_time_copy_to_final(diff);
|
|
|
|
MYDDAS_FREE(end, struct myddas_stats_time_struct);
|
|
MYDDAS_FREE(start, struct myddas_stats_time_struct);
|
|
|
|
MYDDAS_STATS_GET_DB_ROW_FUNCTION(total_time);
|
|
myddas_stats_add_time(total_time, diff, total_time);
|
|
MYDDAS_STATS_GET_DB_ROW_FUNCTION_COUNT(count);
|
|
MYDDAS_STATS_SET_DB_ROW_FUNCTION_COUNT(++count);
|
|
|
|
MYDDAS_FREE(diff, struct myddas_stats_time_struct);
|
|
#endif /* MYDDAS_STATS */
|
|
} else {
|
|
Yap_Error(SYSTEM_ERROR_INTERNAL, TermNil, "sqlite3: %s",
|
|
sqlite3_errmsg(db));
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static void Yap_InitMYDDAS_SQLITE3Preds(void) {
|
|
/* db_dbect: Host x User x Passwd x Database x dbection x ERROR_CODE */
|
|
Yap_InitCPred("c_sqlite3_connect", 4, c_sqlite3_connect, 0);
|
|
|
|
/* db_number_of_fields: Relation x connection x NumberOfFields */
|
|
Yap_InitCPred("c_sqlite3_number_of_fields", 3, c_sqlite3_number_of_fields, 0);
|
|
|
|
/* db_get_attributes_types: Relation x TypesList */
|
|
Yap_InitCPred("c_sqlite3_get_attributes_types", 3,
|
|
c_sqlite3_get_attributes_types, 0);
|
|
|
|
/* db_query: SQLQuery x ResultSet x conection */
|
|
Yap_InitCPred("c_sqlite3_query", 5, c_sqlite3_query, 0);
|
|
|
|
/* db_disconnect: connection */
|
|
Yap_InitCPred("c_sqlite3_disconnect", 1, c_sqlite3_disconnect, 0);
|
|
|
|
/* db_table_write: Result Set */
|
|
Yap_InitCPred("c_sqlite3_table_write", 1, c_sqlite3_table_write, 0);
|
|
|
|
/* db_get_fields_properties: PredName x connection x PropertiesList*/
|
|
Yap_InitCPred("c_sqlite3_get_fields_properties", 3,
|
|
c_sqlite3_get_fields_properties, 0);
|
|
|
|
Yap_InitCPred("c_sqlite3_get_next_result_set", 2,
|
|
c_sqlite3_get_next_result_set, 0);
|
|
|
|
/* c_sqlite3_get_database: connection x DataBaseName */
|
|
Yap_InitCPred("c_sqlite3_get_database", 2, c_sqlite3_get_database, 0);
|
|
|
|
/* c_sqlite3_change_database: connection x DataBaseName */
|
|
Yap_InitCPred("c_sqlite3_change_database", 2, c_sqlite3_change_database, 0);
|
|
}
|
|
static void Yap_InitBackMYDDAS_SQLITE3Preds(void) {
|
|
/* db_row: ResultSet x Arity x ListOfArgs */
|
|
// Yap_InitCPredBack("c_sqlite3_row", 3, 0, c_sqlite3_row_initialise,
|
|
// c_sqlite3_row, c_sqlite3_row_terminate);
|
|
Yap_InitCPred("c_sqlite3_row_initialise", 2, c_sqlite3_row_initialise, 0);
|
|
Yap_InitCPred("c_sqlite3_row_terminate", 2, c_sqlite3_row_terminate, 0);
|
|
Yap_InitCPredBack("c_sqlite3_row_get", 4, 0, c_sqlite3_row, c_sqlite3_row, 0);
|
|
}
|
|
|
|
X_API void init_sqlite3(void) {
|
|
Term cm = CurrentModule;
|
|
CurrentModule = MkAtomTerm(Yap_LookupAtom("user"));
|
|
|
|
Yap_InitMYDDAS_SQLITE3Preds();
|
|
|
|
Yap_InitBackMYDDAS_SQLITE3Preds();
|
|
CurrentModule = cm;
|
|
}
|
|
|
|
|
|
#ifdef _WIN32
|
|
|
|
#include <windows.h>
|
|
|
|
int WINAPI win_sqlite3(HANDLE hinst, DWORD reason, LPVOID reserved);
|
|
|
|
int WINAPI win_sqlite3(HANDLE hinst, DWORD reason, LPVOID reserved) {
|
|
switch (reason) {
|
|
case DLL_PROCESS_ATTACH:
|
|
break;
|
|
case DLL_PROCESS_DETACH:
|
|
break;
|
|
case DLL_THREAD_ATTACH:
|
|
break;
|
|
case DLL_THREAD_DETACH:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#endif
|