69e519bdf1280a6f36c3def18c21dc15e8967b4a
1 /**
2 * collectd - src/oracle.c
3 * Copyright (C) 2008,2009 noris network AG
4 * Copyright (C) 2012 Florian octo Forster
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 *
19 * Linking src/oracle.c ("the oracle plugin") statically or dynamically with
20 * other modules is making a combined work based on the oracle plugin. Thus,
21 * the terms and conditions of the GNU General Public License cover the whole
22 * combination.
23 *
24 * In addition, as a special exception, the copyright holders of the oracle
25 * plugin give you permission to combine the oracle plugin with free software
26 * programs or libraries that are released under the GNU LGPL and with code
27 * included in the standard release of the Oracle® Call Interface (OCI) under
28 * the Oracle® Technology Network (OTN) License (or modified versions of such
29 * code, with unchanged license). You may copy and distribute such a system
30 * following the terms of the GNU GPL for the oracle plugin and the licenses of
31 * the other code concerned.
32 *
33 * Note that people who make modified versions of the oracle plugin are not
34 * obligated to grant this special exception for their modified versions; it is
35 * their choice whether to do so. The GNU General Public License gives
36 * permission to release a modified version without this exception; this
37 * exception also makes it possible to release a modified version which carries
38 * forward this exception. However, without this exception the OTN License does
39 * not allow linking with code licensed under the GNU General Public License.
40 *
41 * Oracle® is a registered trademark of Oracle Corporation and/or its
42 * affiliates. Other names may be trademarks of their respective owners.
43 *
44 * Authors:
45 * Florian octo Forster <octo at collectd.org>
46 **/
48 #include "collectd.h"
50 #include "common.h"
51 #include "plugin.h"
52 #include "utils_db_query.h"
54 #include <oci.h>
56 /*
57 * Data types
58 */
59 struct o_database_s {
60 char *name;
61 char *host;
62 char *connect_id;
63 char *username;
64 char *password;
65 char *plugin_name;
67 udb_query_preparation_area_t **q_prep_areas;
68 udb_query_t **queries;
69 size_t queries_num;
71 OCISvcCtx *oci_service_context;
72 };
73 typedef struct o_database_s o_database_t;
75 /*
76 * Global variables
77 */
78 static udb_query_t **queries = NULL;
79 static size_t queries_num = 0;
80 static o_database_t **databases = NULL;
81 static size_t databases_num = 0;
83 OCIEnv *oci_env = NULL;
84 OCIError *oci_error = NULL;
86 /*
87 * Functions
88 */
89 static void o_report_error(const char *where, /* {{{ */
90 const char *db_name, const char *query_name,
91 const char *what, OCIError *eh) {
92 char buffer[2048];
93 sb4 error_code;
94 int status;
96 if (db_name == NULL)
97 db_name = "(none)";
98 if (query_name == NULL)
99 query_name = "(none)";
101 /* An operation may cause / return multiple errors. Loop until we have
102 * handled all errors available (with a fail-save limit of 16). */
103 for (unsigned int record_number = 1; record_number <= 16; record_number++) {
104 memset(buffer, 0, sizeof(buffer));
105 error_code = -1;
107 status = OCIErrorGet(eh, (ub4)record_number,
108 /* sqlstate = */ NULL, &error_code, (text *)&buffer[0],
109 (ub4)sizeof(buffer), OCI_HTYPE_ERROR);
110 buffer[sizeof(buffer) - 1] = 0;
112 if (status == OCI_NO_DATA)
113 return;
115 if (status == OCI_SUCCESS) {
116 size_t buffer_length;
118 buffer_length = strlen(buffer);
119 while ((buffer_length > 0) && (buffer[buffer_length - 1] < 32)) {
120 buffer_length--;
121 buffer[buffer_length] = 0;
122 }
124 ERROR("oracle plugin: %s (db = %s, query = %s): %s failed: %s", where,
125 db_name, query_name, what, buffer);
126 } else {
127 ERROR("oracle plugin: %s (db = %s, query = %s): %s failed. "
128 "Additionally, OCIErrorGet failed with status %i.",
129 where, db_name, query_name, what, status);
130 return;
131 }
132 }
133 } /* }}} void o_report_error */
135 static void o_database_free(o_database_t *db) /* {{{ */
136 {
137 if (db == NULL)
138 return;
140 sfree(db->name);
141 sfree(db->connect_id);
142 sfree(db->username);
143 sfree(db->password);
144 sfree(db->queries);
145 sfree(db->plugin_name);
147 if (db->q_prep_areas != NULL)
148 for (size_t i = 0; i < db->queries_num; ++i)
149 udb_query_delete_preparation_area(db->q_prep_areas[i]);
150 free(db->q_prep_areas);
152 sfree(db);
153 } /* }}} void o_database_free */
155 /* Configuration handling functions {{{
156 *
157 * <Plugin oracle>
158 * <Query "plugin_instance0">
159 * Statement "SELECT name, value FROM table"
160 * <Result>
161 * Type "gauge"
162 * InstancesFrom "name"
163 * ValuesFrom "value"
164 * </Result>
165 * </Query>
166 *
167 * <Database "plugin_instance1">
168 * ConnectID "db01"
169 * Username "oracle"
170 * Password "secret"
171 * Query "plugin_instance0"
172 * </Database>
173 * </Plugin>
174 */
176 static int o_config_add_database(oconfig_item_t *ci) /* {{{ */
177 {
178 o_database_t *db;
179 int status;
181 if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) {
182 WARNING("oracle plugin: The `Database' block "
183 "needs exactly one string argument.");
184 return -1;
185 }
187 db = calloc(1, sizeof(*db));
188 if (db == NULL) {
189 ERROR("oracle plugin: calloc failed.");
190 return -1;
191 }
192 db->name = NULL;
193 db->host = NULL;
194 db->connect_id = NULL;
195 db->username = NULL;
196 db->password = NULL;
197 db->plugin_name = NULL;
199 status = cf_util_get_string(ci, &db->name);
200 if (status != 0) {
201 sfree(db);
202 return status;
203 }
205 /* Fill the `o_database_t' structure.. */
206 for (int i = 0; i < ci->children_num; i++) {
207 oconfig_item_t *child = ci->children + i;
209 if (strcasecmp("ConnectID", child->key) == 0)
210 status = cf_util_get_string(child, &db->connect_id);
211 else if (strcasecmp("Host", child->key) == 0)
212 status = cf_util_get_string(child, &db->host);
213 else if (strcasecmp("Username", child->key) == 0)
214 status = cf_util_get_string(child, &db->username);
215 else if (strcasecmp("Password", child->key) == 0)
216 status = cf_util_get_string(child, &db->password);
217 else if (strcasecmp("PluginName", child->key) == 0)
218 status = cf_util_get_string(child, &db->plugin_name);
219 else if (strcasecmp("Query", child->key) == 0)
220 status = udb_query_pick_from_list(child, queries, queries_num,
221 &db->queries, &db->queries_num);
222 else {
223 WARNING("oracle plugin: Option `%s' not allowed here.", child->key);
224 status = -1;
225 }
227 if (status != 0)
228 break;
229 }
231 /* Check that all necessary options have been given. */
232 while (status == 0) {
233 if (db->connect_id == NULL) {
234 WARNING("oracle plugin: `ConnectID' not given for query `%s'", db->name);
235 status = -1;
236 }
237 if (db->username == NULL) {
238 WARNING("oracle plugin: `Username' not given for query `%s'", db->name);
239 status = -1;
240 }
241 if (db->password == NULL) {
242 WARNING("oracle plugin: `Password' not given for query `%s'", db->name);
243 status = -1;
244 }
246 break;
247 } /* while (status == 0) */
249 while ((status == 0) && (db->queries_num > 0)) {
250 db->q_prep_areas = (udb_query_preparation_area_t **)calloc(
251 db->queries_num, sizeof(*db->q_prep_areas));
253 if (db->q_prep_areas == NULL) {
254 WARNING("oracle plugin: calloc failed");
255 status = -1;
256 break;
257 }
259 for (int i = 0; i < db->queries_num; ++i) {
260 db->q_prep_areas[i] = udb_query_allocate_preparation_area(db->queries[i]);
262 if (db->q_prep_areas[i] == NULL) {
263 WARNING("oracle plugin: udb_query_allocate_preparation_area failed");
264 status = -1;
265 break;
266 }
267 }
269 break;
270 }
272 /* If all went well, add this query to the list of queries within the
273 * database structure. */
274 if (status == 0) {
275 o_database_t **temp;
277 temp = realloc(databases, sizeof(*databases) * (databases_num + 1));
278 if (temp == NULL) {
279 ERROR("oracle plugin: realloc failed");
280 status = -1;
281 } else {
282 databases = temp;
283 databases[databases_num] = db;
284 databases_num++;
285 }
286 }
288 if (status != 0) {
289 o_database_free(db);
290 return -1;
291 }
293 return 0;
294 } /* }}} int o_config_add_database */
296 static int o_config(oconfig_item_t *ci) /* {{{ */
297 {
298 for (int i = 0; i < ci->children_num; i++) {
299 oconfig_item_t *child = ci->children + i;
300 if (strcasecmp("Query", child->key) == 0)
301 udb_query_create(&queries, &queries_num, child,
302 /* callback = */ NULL);
303 else if (strcasecmp("Database", child->key) == 0)
304 o_config_add_database(child);
305 else {
306 WARNING("oracle plugin: Ignoring unknown config option `%s'.",
307 child->key);
308 }
310 if (queries_num > 0) {
311 DEBUG("oracle plugin: o_config: queries_num = %zu; queries[0] = %p; "
312 "udb_query_get_user_data (queries[0]) = %p;",
313 queries_num, (void *)queries[0],
314 udb_query_get_user_data(queries[0]));
315 }
316 } /* for (ci->children) */
318 return 0;
319 } /* }}} int o_config */
321 /* }}} End of configuration handling functions */
323 static int o_init(void) /* {{{ */
324 {
325 int status;
327 if (oci_env != NULL)
328 return 0;
330 status = OCIEnvCreate(&oci_env,
331 /* mode = */ OCI_THREADED,
332 /* context = */ NULL,
333 /* malloc = */ NULL,
334 /* realloc = */ NULL,
335 /* free = */ NULL,
336 /* user_data_size = */ 0,
337 /* user_data_ptr = */ NULL);
338 if (status != 0) {
339 ERROR("oracle plugin: OCIEnvCreate failed with status %i.", status);
340 return -1;
341 }
343 status = OCIHandleAlloc(oci_env, (void *)&oci_error, OCI_HTYPE_ERROR,
344 /* user_data_size = */ 0, /* user_data = */ NULL);
345 if (status != OCI_SUCCESS) {
346 ERROR("oracle plugin: OCIHandleAlloc (OCI_HTYPE_ERROR) failed "
347 "with status %i.",
348 status);
349 return -1;
350 }
352 return 0;
353 } /* }}} int o_init */
355 static int o_read_database_query(o_database_t *db, /* {{{ */
356 udb_query_t *q,
357 udb_query_preparation_area_t *prep_area) {
358 char **column_names;
359 char **column_values;
360 size_t column_num;
362 OCIStmt *oci_statement;
364 /* List of `OCIDefine' pointers. These defines map columns to the buffer
365 * space declared above. */
366 OCIDefine **oci_defines;
368 int status;
370 oci_statement = udb_query_get_user_data(q);
372 /* Prepare the statement */
373 if (oci_statement == NULL) /* {{{ */
374 {
375 const char *statement;
377 statement = udb_query_get_statement(q);
378 assert(statement != NULL);
380 status = OCIHandleAlloc(oci_env, (void *)&oci_statement, OCI_HTYPE_STMT,
381 /* user_data_size = */ 0, /* user_data = */ NULL);
382 if (status != OCI_SUCCESS) {
383 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
384 "OCIHandleAlloc", oci_error);
385 oci_statement = NULL;
386 return -1;
387 }
389 status = OCIStmtPrepare(oci_statement, oci_error, (text *)statement,
390 (ub4)strlen(statement),
391 /* language = */ OCI_NTV_SYNTAX,
392 /* mode = */ OCI_DEFAULT);
393 if (status != OCI_SUCCESS) {
394 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
395 "OCIStmtPrepare", oci_error);
396 OCIHandleFree(oci_statement, OCI_HTYPE_STMT);
397 oci_statement = NULL;
398 return -1;
399 }
400 udb_query_set_user_data(q, oci_statement);
402 DEBUG("oracle plugin: o_read_database_query (%s, %s): "
403 "Successfully allocated statement handle.",
404 db->name, udb_query_get_name(q));
405 } /* }}} */
407 assert(oci_statement != NULL);
409 /* Execute the statement */
410 status = OCIStmtExecute(db->oci_service_context, /* {{{ */
411 oci_statement, oci_error,
412 /* iters = */ 0,
413 /* rowoff = */ 0,
414 /* snap_in = */ NULL, /* snap_out = */ NULL,
415 /* mode = */ OCI_DEFAULT);
416 if (status != OCI_SUCCESS) {
417 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
418 "OCIStmtExecute", oci_error);
419 return -1;
420 } /* }}} */
422 /* Acquire the number of columns returned. */
423 do /* {{{ */
424 {
425 ub4 param_counter = 0;
426 status = OCIAttrGet(oci_statement, OCI_HTYPE_STMT, /* {{{ */
427 ¶m_counter, /* size pointer = */ NULL,
428 OCI_ATTR_PARAM_COUNT, oci_error);
429 if (status != OCI_SUCCESS) {
430 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
431 "OCIAttrGet", oci_error);
432 return -1;
433 } /* }}} */
435 column_num = (size_t)param_counter;
436 } while (0); /* }}} */
438 /* Allocate the following buffers:
439 *
440 * +---------------+-----------------------------------+
441 * ! Name ! Size !
442 * +---------------+-----------------------------------+
443 * ! column_names ! column_num x DATA_MAX_NAME_LEN !
444 * ! column_values ! column_num x DATA_MAX_NAME_LEN !
445 * ! oci_defines ! column_num x sizeof (OCIDefine *) !
446 * +---------------+-----------------------------------+
447 *
448 * {{{ */
449 #define NUMBER_BUFFER_SIZE 64
451 #define FREE_ALL \
452 if (column_names != NULL) { \
453 sfree(column_names[0]); \
454 sfree(column_names); \
455 } \
456 if (column_values != NULL) { \
457 sfree(column_values[0]); \
458 sfree(column_values); \
459 } \
460 sfree(oci_defines)
462 #define ALLOC_OR_FAIL(ptr, ptr_size) \
463 do { \
464 size_t alloc_size = (size_t)((ptr_size)); \
465 (ptr) = calloc(1, alloc_size); \
466 if ((ptr) == NULL) { \
467 FREE_ALL; \
468 ERROR("oracle plugin: o_read_database_query: calloc failed."); \
469 return -1; \
470 } \
471 } while (0)
473 /* Initialize everything to NULL so the above works. */
474 column_names = NULL;
475 column_values = NULL;
476 oci_defines = NULL;
478 ALLOC_OR_FAIL(column_names, column_num * sizeof(char *));
479 ALLOC_OR_FAIL(column_names[0], column_num * DATA_MAX_NAME_LEN);
480 for (size_t i = 1; i < column_num; i++)
481 column_names[i] = column_names[i - 1] + DATA_MAX_NAME_LEN;
483 ALLOC_OR_FAIL(column_values, column_num * sizeof(char *));
484 ALLOC_OR_FAIL(column_values[0],
485 column_num * DATA_MAX_NAME_LEN);
486 for (size_t i = 1; i < column_num; i++)
487 column_values[i] = column_values[i - 1] + DATA_MAX_NAME_LEN;
489 ALLOC_OR_FAIL(oci_defines, column_num * sizeof(OCIDefine *));
490 /* }}} End of buffer allocations. */
492 /* ``Define'' the returned data, i. e. bind the columns to the buffers
493 * allocated above. */
494 for (size_t i = 0; i < column_num; i++) /* {{{ */
495 {
496 char *column_name;
497 ub4 column_name_length;
498 OCIParam *oci_param;
500 oci_param = NULL;
502 status = OCIParamGet(oci_statement, OCI_HTYPE_STMT, oci_error,
503 (void *)&oci_param, (ub4)(i + 1));
504 if (status != OCI_SUCCESS) {
505 /* This is probably alright */
506 DEBUG("oracle plugin: o_read_database_query: status = %#x (= %i);",
507 status, status);
508 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
509 "OCIParamGet", oci_error);
510 status = OCI_SUCCESS;
511 break;
512 }
514 column_name = NULL;
515 column_name_length = 0;
516 status = OCIAttrGet(oci_param, OCI_DTYPE_PARAM, &column_name,
517 &column_name_length, OCI_ATTR_NAME, oci_error);
518 if (status != OCI_SUCCESS) {
519 OCIDescriptorFree(oci_param, OCI_DTYPE_PARAM);
520 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
521 "OCIAttrGet (OCI_ATTR_NAME)", oci_error);
522 continue;
523 }
525 OCIDescriptorFree(oci_param, OCI_DTYPE_PARAM);
526 oci_param = NULL;
528 /* Copy the name to column_names. Warning: The ``string'' returned by OCI
529 * may not be null terminated! */
530 memset(column_names[i], 0, DATA_MAX_NAME_LEN);
531 if (column_name_length >= DATA_MAX_NAME_LEN)
532 column_name_length = DATA_MAX_NAME_LEN - 1;
533 memcpy(column_names[i], column_name, column_name_length);
534 column_names[i][column_name_length] = 0;
536 DEBUG("oracle plugin: o_read_database_query: column_names[%zu] = %s; "
537 "column_name_length = %" PRIu32 ";",
538 i, column_names[i], (uint32_t)column_name_length);
540 status = OCIDefineByPos(oci_statement, &oci_defines[i], oci_error,
541 (ub4)(i + 1), column_values[i], DATA_MAX_NAME_LEN,
542 SQLT_STR, NULL, NULL, NULL, OCI_DEFAULT);
543 if (status != OCI_SUCCESS) {
544 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
545 "OCIDefineByPos", oci_error);
546 continue;
547 }
548 } /* for (j = 1; j <= param_counter; j++) */
549 /* }}} End of the ``define'' stuff. */
551 status = udb_query_prepare_result(
552 q, prep_area, (db->host != NULL) ? db->host : hostname_g,
553 /* plugin = */ (db->plugin_name != NULL) ? db->plugin_name : "oracle",
554 db->name, column_names, column_num,
555 /* interval = */ 0);
556 if (status != 0) {
557 ERROR("oracle plugin: o_read_database_query (%s, %s): "
558 "udb_query_prepare_result failed.",
559 db->name, udb_query_get_name(q));
560 FREE_ALL;
561 return -1;
562 }
564 /* Fetch and handle all the rows that matched the query. */
565 while (42) /* {{{ */
566 {
567 status = OCIStmtFetch2(oci_statement, oci_error,
568 /* nrows = */ 1, /* orientation = */ OCI_FETCH_NEXT,
569 /* fetch offset = */ 0, /* mode = */ OCI_DEFAULT);
570 if (status == OCI_NO_DATA) {
571 status = OCI_SUCCESS;
572 break;
573 } else if ((status != OCI_SUCCESS) && (status != OCI_SUCCESS_WITH_INFO)) {
574 o_report_error("o_read_database_query", db->name, udb_query_get_name(q),
575 "OCIStmtFetch2", oci_error);
576 break;
577 }
579 status = udb_query_handle_result(q, prep_area, column_values);
580 if (status != 0) {
581 WARNING("oracle plugin: o_read_database_query (%s, %s): "
582 "udb_query_handle_result failed.",
583 db->name, udb_query_get_name(q));
584 }
585 } /* }}} while (42) */
587 /* DEBUG ("oracle plugin: o_read_database_query: This statement succeeded:
588 * %s", q->statement); */
589 FREE_ALL;
591 return 0;
592 #undef FREE_ALL
593 #undef ALLOC_OR_FAIL
594 } /* }}} int o_read_database_query */
596 static int o_read_database(o_database_t *db) /* {{{ */
597 {
598 int status;
600 if (db->oci_service_context != NULL) {
601 OCIServer *server_handle;
602 ub4 connection_status;
604 server_handle = NULL;
605 status = OCIAttrGet((void *)db->oci_service_context, OCI_HTYPE_SVCCTX,
606 (void *)&server_handle, /* size pointer = */ NULL,
607 OCI_ATTR_SERVER, oci_error);
608 if (status != OCI_SUCCESS) {
609 o_report_error("o_read_database", db->name, NULL, "OCIAttrGet",
610 oci_error);
611 return -1;
612 }
614 if (server_handle == NULL) {
615 connection_status = OCI_SERVER_NOT_CONNECTED;
616 } else /* if (server_handle != NULL) */
617 {
618 connection_status = 0;
619 status = OCIAttrGet((void *)server_handle, OCI_HTYPE_SERVER,
620 (void *)&connection_status, /* size pointer = */ NULL,
621 OCI_ATTR_SERVER_STATUS, oci_error);
622 if (status != OCI_SUCCESS) {
623 o_report_error("o_read_database", db->name, NULL, "OCIAttrGet",
624 oci_error);
625 return -1;
626 }
627 }
629 if (connection_status != OCI_SERVER_NORMAL) {
630 INFO("oracle plugin: Connection to %s lost. Trying to reconnect.",
631 db->name);
632 OCIHandleFree(db->oci_service_context, OCI_HTYPE_SVCCTX);
633 db->oci_service_context = NULL;
634 }
635 } /* if (db->oci_service_context != NULL) */
637 if (db->oci_service_context == NULL) {
638 status = OCILogon(oci_env, oci_error, &db->oci_service_context,
639 (OraText *)db->username, (ub4)strlen(db->username),
640 (OraText *)db->password, (ub4)strlen(db->password),
641 (OraText *)db->connect_id, (ub4)strlen(db->connect_id));
642 if ((status != OCI_SUCCESS) && (status != OCI_SUCCESS_WITH_INFO)) {
643 char errfunc[256];
645 ssnprintf(errfunc, sizeof(errfunc), "OCILogon(\"%s\")", db->connect_id);
647 o_report_error("o_read_database", db->name, NULL, errfunc, oci_error);
648 DEBUG("oracle plugin: OCILogon (%s): db->oci_service_context = %p;",
649 db->connect_id, db->oci_service_context);
650 db->oci_service_context = NULL;
651 return -1;
652 } else if (status == OCI_SUCCESS_WITH_INFO) {
653 /* TODO: Print NOTIFY message. */
654 }
655 assert(db->oci_service_context != NULL);
656 }
658 DEBUG("oracle plugin: o_read_database: db->connect_id = %s; "
659 "db->oci_service_context = %p;",
660 db->connect_id, db->oci_service_context);
662 for (size_t i = 0; i < db->queries_num; i++)
663 o_read_database_query(db, db->queries[i], db->q_prep_areas[i]);
665 return 0;
666 } /* }}} int o_read_database */
668 static int o_read(void) /* {{{ */
669 {
670 size_t i;
672 for (i = 0; i < databases_num; i++)
673 o_read_database(databases[i]);
675 return 0;
676 } /* }}} int o_read */
678 static int o_shutdown(void) /* {{{ */
679 {
680 size_t i;
682 for (i = 0; i < databases_num; i++)
683 if (databases[i]->oci_service_context != NULL) {
684 OCIHandleFree(databases[i]->oci_service_context, OCI_HTYPE_SVCCTX);
685 databases[i]->oci_service_context = NULL;
686 }
688 for (i = 0; i < queries_num; i++) {
689 OCIStmt *oci_statement;
691 oci_statement = udb_query_get_user_data(queries[i]);
692 if (oci_statement != NULL) {
693 OCIHandleFree(oci_statement, OCI_HTYPE_STMT);
694 udb_query_set_user_data(queries[i], NULL);
695 }
696 }
698 OCIHandleFree(oci_env, OCI_HTYPE_ENV);
699 oci_env = NULL;
701 udb_query_free(queries, queries_num);
702 queries = NULL;
703 queries_num = 0;
705 return 0;
706 } /* }}} int o_shutdown */
708 void module_register(void) /* {{{ */
709 {
710 plugin_register_complex_config("oracle", o_config);
711 plugin_register_init("oracle", o_init);
712 plugin_register_read("oracle", o_read);
713 plugin_register_shutdown("oracle", o_shutdown);
714 } /* }}} void module_register */