4 EXEC SQL INCLUDE SQLCA;
5 EXEC SQL INCLUDE SQLDA;
14 * ---Implementations---
18 return (sqlca.sqlcode < 0) ? sqlca.sqlcode : 0;
21 short INGgetCols(const char *stmt)
23 EXEC SQL BEGIN DECLARE SECTION;
25 EXEC SQL END DECLARE SECTION;
30 sqlda = (IISQLDA *)malloc(IISQDA_HEAD_SIZE + (number * IISQDA_VAR_SIZE));
31 memset(sqlda, 0, (IISQDA_HEAD_SIZE + (number * IISQDA_VAR_SIZE)));
35 stmtd = (char*)malloc(strlen(stmt)+1);
36 bstrncpy(stmtd,stmt,strlen(stmt)+1);
38 EXEC SQL PREPARE s1 from :stmtd;
44 EXEC SQL DESCRIBE s1 into :sqlda;
57 IISQLDA *INGgetDescriptor(short numCols, const char *stmt)
59 EXEC SQL BEGIN DECLARE SECTION;
61 EXEC SQL END DECLARE SECTION;
66 sqlda = (IISQLDA *)malloc(IISQDA_HEAD_SIZE + (numCols * IISQDA_VAR_SIZE));
67 memset(sqlda, 0, (IISQDA_HEAD_SIZE + (numCols * IISQDA_VAR_SIZE)));
69 sqlda->sqln = numCols;
71 stmtd = (char *)malloc(strlen(stmt)+1);
72 bstrncpy(stmtd,stmt,strlen(stmt)+1);
74 EXEC SQL PREPARE s2 INTO :sqlda FROM :stmtd;
78 for (i = 0; i < sqlda->sqld; ++i) {
80 * Alloc space for variable like indicated in sqllen
81 * for date types sqllen is always 0 -> allocate by type
83 switch (abs(sqlda->sqlvar[i].sqltype)) {
85 sqlda->sqlvar[i].sqldata = (char *)malloc(IISQ_TSW_LEN);
88 sqlda->sqlvar[i].sqldata = (char *)malloc(IISQ_TSWO_LEN);
91 sqlda->sqlvar[i].sqldata = (char *)malloc(IISQ_TSTMP_LEN);
94 sqlda->sqlvar[i].sqldata = (char *)malloc(sqlda->sqlvar[i].sqllen);
102 void INGfreeDescriptor(IISQLDA *sqlda)
110 for (i = 0; i < sqlda->sqld; ++i) {
111 if (sqlda->sqlvar[i].sqldata) {
112 free(sqlda->sqlvar[i].sqldata);
114 if (sqlda->sqlvar[i].sqlind) {
115 free(sqlda->sqlvar[i].sqlind);
122 int INGgetTypeSize(IISQLVAR *ingvar)
127 * TODO: add date types (at least TSTMP,TSW TSWO)
129 switch (ingvar->sqltype) {
137 inglength = ingvar->sqllen;
144 INGresult *INGgetINGresult(IISQLDA *sqlda)
151 INGresult *result = NULL;
153 result = (INGresult *)malloc(sizeof(INGresult));
154 memset(result, 0, sizeof(INGresult));
156 result->sqlda = sqlda;
157 result->num_fields = sqlda->sqld;
158 result->num_rows = 0;
159 result->first_row = NULL;
160 result->status = ING_EMPTY_RESULT;
161 result->act_row = NULL;
162 memset(result->numrowstring, 0, sizeof(result->numrowstring));
164 if (result->num_fields) {
165 result->fields = (INGRES_FIELD *)malloc(sizeof(INGRES_FIELD) * result->num_fields);
166 memset(result->fields, 0, sizeof(INGRES_FIELD) * result->num_fields);
168 for (i = 0; i < result->num_fields; ++i) {
169 memset(result->fields[i].name, 0, 34);
170 bstrncpy(result->fields[i].name, sqlda->sqlvar[i].sqlname.sqlnamec, sqlda->sqlvar[i].sqlname.sqlnamel);
171 result->fields[i].max_length = INGgetTypeSize(&sqlda->sqlvar[i]);
172 result->fields[i].type = abs(sqlda->sqlvar[i].sqltype);
173 result->fields[i].flags = (abs(sqlda->sqlvar[i].sqltype)<0) ? 1 : 0;
180 void INGfreeINGresult(INGresult *ing_res)
190 * Free all rows and fields, then res, not descriptor!
192 if (ing_res != NULL) {
194 * Use of rows is a nasty workaround til I find the reason,
195 * why aggregates like max() don't work
197 rows = ing_res->num_rows;
198 ing_res->act_row = ing_res->first_row;
199 while (ing_res->act_row != NULL && rows > 0) {
200 rowtemp = ing_res->act_row->next;
201 INGfreeRowSpace(ing_res->act_row, ing_res->sqlda);
202 ing_res->act_row = rowtemp;
205 if (ing_res->fields) {
206 free(ing_res->fields);
213 ING_ROW *INGgetRowSpace(INGresult *ing_res)
216 unsigned short len; /* used for VARCHAR type length */
217 IISQLDA *sqlda = ing_res->sqlda;
219 IISQLVAR *vars = NULL;
221 row = (ING_ROW *)malloc(sizeof(ING_ROW));
222 memset(row, 0, sizeof(ING_ROW));
224 vars = (IISQLVAR *)malloc(sizeof(IISQLVAR) * sqlda->sqld);
225 memset(vars, 0, sizeof(IISQLVAR) * sqlda->sqld);
230 for (i = 0; i < sqlda->sqld; ++i) {
232 * Make strings out of the data, then the space and assign
233 * (why string? at least it seems that way, looking into the sources)
235 switch (ing_res->fields[i].type) {
237 len = ((ING_VARCHAR *)sqlda->sqlvar[i].sqldata)->len;
238 vars[i].sqldata = (char *)malloc(len+1);
239 memcpy(vars[i].sqldata,sqlda->sqlvar[i].sqldata+2,len);
240 vars[i].sqldata[len] = '\0';
243 vars[i].sqldata = (char *)malloc(ing_res->fields[i].max_length+1);
244 memcpy(vars[i].sqldata,sqlda->sqlvar[i].sqldata,sqlda->sqlvar[i].sqllen);
245 vars[i].sqldata[ing_res->fields[i].max_length] = '\0';
248 vars[i].sqldata = (char *)malloc(20);
249 memset(vars[i].sqldata, 0, 20);
250 switch (sqlda->sqlvar[i].sqllen) {
252 bsnprintf(vars[i].sqldata, 20, "%d",*(short*)sqlda->sqlvar[i].sqldata);
255 bsnprintf(vars[i].sqldata, 20, "%ld",*(int*)sqlda->sqlvar[i].sqldata);
258 bsnprintf(vars[i].sqldata, 20, "%lld",*(long*)sqlda->sqlvar[i].sqldata);
262 case IISQ_TSTMP_TYPE:
263 vars[i].sqldata = (char *)malloc(IISQ_TSTMP_LEN+1);
264 vars[i].sqldata[IISQ_TSTMP_LEN] = '\0';
267 vars[i].sqldata = (char *)malloc(IISQ_TSWO_LEN+1);
268 vars[i].sqldata[IISQ_TSWO_LEN] = '\0';
271 vars[i].sqldata = (char *)malloc(IISQ_TSW_LEN+1);
272 vars[i].sqldata[IISQ_TSW_LEN] = '\0';
275 vars[i].sqlind = (short *)malloc(sizeof(short));
276 if (sqlda->sqlvar[i].sqlind) {
277 memcpy(vars[i].sqlind,sqlda->sqlvar[i].sqlind,sizeof(short));
287 void INGfreeRowSpace(ING_ROW *row, IISQLDA *sqlda)
291 if (row == NULL || sqlda == NULL) {
295 for (i = 0; i < sqlda->sqld; ++i) {
296 if (row->sqlvar[i].sqldata) {
297 free(row->sqlvar[i].sqldata);
299 if (row->sqlvar[i].sqlind) {
300 free(row->sqlvar[i].sqlind);
307 int INGfetchAll(const char *stmt, INGresult *ing_res)
314 desc = ing_res->sqlda;
316 EXEC SQL DECLARE c2 CURSOR FOR s2;
317 if ((check = INGcheck()) < 0) {
322 if ((check = INGcheck()) < 0) {
326 /* for (linecount = 0; sqlca.sqlcode == 0; ++linecount) */
328 EXEC SQL FETCH c2 USING DESCRIPTOR :desc;
330 if ( (sqlca.sqlcode == 0) || (sqlca.sqlcode == -40202) ) {
331 row = INGgetRowSpace(ing_res); /* alloc space for fetched row */
334 * Initialize list when encountered first time
336 if (ing_res->first_row == 0) {
337 ing_res->first_row = row; /* head of the list */
338 ing_res->first_row->next = NULL;
339 ing_res->act_row = ing_res->first_row;
341 ing_res->act_row->next = row; /* append row to old act_row */
342 ing_res->act_row = row; /* set row as act_row */
344 row->row_number = linecount;
346 } while ( (sqlca.sqlcode == 0) || (sqlca.sqlcode == -40202) );
350 ing_res->status = ING_COMMAND_OK;
351 ing_res->num_rows = linecount;
355 ING_STATUS INGresultStatus(INGresult *res)
357 if (res == NULL) {return ING_NO_RESULT;}
361 void INGrowSeek(INGresult *res, int row_number)
363 ING_ROW *trow = NULL;
364 if (res->act_row->row_number == row_number) {
369 * TODO: real error handling
371 if (row_number<0 || row_number>res->num_rows) {
375 for (trow = res->first_row ; trow->row_number != row_number ; trow = trow->next );
378 * Note - can be null - if row_number not found, right?
382 char *INGgetvalue(INGresult *res, int row_number, int column_number)
384 if (row_number != res->act_row->row_number) {
385 INGrowSeek(res, row_number);
387 return res->act_row->sqlvar[column_number].sqldata;
390 int INGgetisnull(INGresult *res, int row_number, int column_number)
392 if (row_number != res->act_row->row_number) {
393 INGrowSeek(res, row_number);
395 return (short)*res->act_row->sqlvar[column_number].sqlind;
398 int INGntuples(const INGresult *res)
400 return res->num_rows;
403 int INGnfields(const INGresult *res)
405 return res->num_fields;
408 char *INGfname(const INGresult *res, int column_number)
410 if ((column_number > res->num_fields) || (column_number < 0)) {
413 return res->fields[column_number].name;
417 short INGftype(const INGresult *res, int column_number)
419 return res->fields[column_number].type;
422 int INGexec(INGconn *conn, const char *query)
425 EXEC SQL BEGIN DECLARE SECTION;
428 EXEC SQL END DECLARE SECTION;
430 stmt = (char *)malloc(strlen(query)+1);
431 bstrncpy(stmt,query,strlen(query)+1);
434 EXEC SQL EXECUTE IMMEDIATE :stmt;
436 if ((check = INGcheck()) < 0) {
440 EXEC SQL INQUIRE_INGRES(:rowcount = ROWCOUNT);
441 if ((check = INGcheck()) < 0) {
448 INGresult *INGquery(INGconn *conn, const char *query)
451 * TODO: error handling
453 IISQLDA *desc = NULL;
454 INGresult *res = NULL;
456 int cols = INGgetCols(query);
458 desc = INGgetDescriptor(cols, query);
462 res = INGgetINGresult(desc);
466 rows = INGfetchAll(query, res);
469 INGfreeINGresult(res);
470 INGfreeDescriptor(desc);
476 void INGclear(INGresult *res)
481 IISQLDA *desc = res->sqlda;
482 INGfreeINGresult(res);
483 INGfreeDescriptor(desc);
486 INGconn *INGconnectDB(char *dbname, char *user, char *passwd)
488 if (dbname == NULL || strlen(dbname) == 0) {
492 INGconn *dbconn = (INGconn *)malloc(sizeof(INGconn));
493 memset(dbconn, 0, sizeof(INGconn));
495 EXEC SQL BEGIN DECLARE SECTION;
501 EXEC SQL END DECLARE SECTION;
503 bstrncpy(ingdbname, dbname, sizeof(ingdbname));
506 bstrncpy(ingdbuser, user, sizeof(ingdbuser));
507 if (passwd != NULL) {
508 bstrncpy(ingdbpasw, passwd, sizeof(ingdbpasw));
510 memset(ingdbpasw, 0, sizeof(ingdbpasw));
514 identified by :ingdbuser
515 dbms_password = :ingdbpasw;
517 EXEC SQL CONNECT :ingdbname;
520 EXEC SQL INQUIRE_SQL(:conn_name = connection_name);
521 EXEC SQL INQUIRE_SQL(:sess_id = session);
523 bstrncpy(dbconn->dbname, ingdbname, sizeof(dbconn->dbname));
524 bstrncpy(dbconn->user, ingdbuser, sizeof(dbconn->user));
525 bstrncpy(dbconn->password, ingdbpasw, sizeof(dbconn->password));
526 bstrncpy(dbconn->connection_name, conn_name, sizeof(dbconn->connection_name));
527 dbconn->session_id = sess_id;
528 dbconn->msg = (char*)malloc(257);
529 memset(dbconn->msg, 0, 257);
534 void INGdisconnectDB(INGconn *dbconn)
537 * TODO: check for any real use of dbconn: maybe whenn multithreaded?
540 if (dbconn != NULL) {
546 char *INGerrorMessage(const INGconn *conn)
548 EXEC SQL BEGIN DECLARE SECTION;
550 EXEC SQL END DECLARE SECTION;
552 EXEC SQL INQUIRE_INGRES(:errbuf = ERRORTEXT);
553 memcpy(conn->msg,&errbuf,256);
557 char *INGcmdTuples(INGresult *res)
559 return res->numrowstring;
563 int INGputCopyEnd(INGconn *conn, const char *errormsg);
564 int INGputCopyData(INGconn *conn, const char *buffer, int nbytes);