6dd7d1ade1ca98b952a4ce05a8b1a4f6bc21fa49
1 /*
2 * SysDB - src/include/core/store.h
3 * Copyright (C) 2012 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #ifndef SDB_CORE_STORE_H
29 #define SDB_CORE_STORE_H 1
31 #include "sysdb.h"
32 #include "core/object.h"
33 #include "core/data.h"
34 #include "core/time.h"
35 #include "core/timeseries.h"
36 #include "utils/strbuf.h"
38 #include <stdio.h>
40 #ifdef __cplusplus
41 extern "C" {
42 #endif
44 /*
45 * Store object types.
46 */
47 enum {
48 SDB_HOST = 1,
49 SDB_SERVICE,
50 SDB_METRIC,
51 SDB_ATTRIBUTE,
52 };
53 #define SDB_STORE_TYPE_TO_NAME(t) \
54 (((t) == SDB_HOST) ? "host" \
55 : ((t) == SDB_SERVICE) ? "service" \
56 : ((t) == SDB_METRIC) ? "metric" \
57 : ((t) == SDB_ATTRIBUTE) ? "attribute" : "unknown")
59 /*
60 * sdb_store_obj_t represents the super-class of any object stored in the
61 * database. It inherits from sdb_object_t and may safely be cast to a generic
62 * object to access its name.
63 */
64 struct sdb_store_obj;
65 typedef struct sdb_store_obj sdb_store_obj_t;
67 /*
68 * Expressions represent arithmetic expressions based on stored objects and
69 * their various attributes.
70 *
71 * An expression object inherits from sdb_object_t and, thus, may safely be
72 * cast to a generic object.
73 */
74 struct sdb_store_expr;
75 typedef struct sdb_store_expr sdb_store_expr_t;
76 #define SDB_STORE_EXPR(obj) ((sdb_store_expr_t *)(obj))
78 /*
79 * Store matchers may be used to lookup hosts from the store based on their
80 * various attributes. Service and attribute matchers are applied to a host's
81 * services and attributes and evaluate to true if *any* service or attribute
82 * matches.
83 *
84 * A store matcher object inherits from sdb_object_t and, thus, may safely be
85 * cast to a generic object.
86 */
87 struct sdb_store_matcher;
88 typedef struct sdb_store_matcher sdb_store_matcher_t;
89 #define SDB_STORE_MATCHER(obj) ((sdb_store_matcher_t *)(obj))
91 /*
92 * A JSON formatter converts a stored object into the JSON format.
93 * See http://www.ietf.org/rfc/rfc4627.txt
94 */
95 struct sdb_store_json_formatter;
96 typedef struct sdb_store_json_formatter sdb_store_json_formatter_t;
98 /*
99 * Queryable fields of a stored object.
100 */
101 enum {
102 SDB_FIELD_NAME = 1, /* string */
103 SDB_FIELD_LAST_UPDATE, /* datetime */
104 SDB_FIELD_AGE, /* datetime */
105 SDB_FIELD_INTERVAL, /* datetime */
106 SDB_FIELD_BACKEND, /* string */
107 };
109 #define SDB_FIELD_TO_NAME(f) \
110 (((f) == SDB_FIELD_NAME) ? "name" \
111 : ((f) == SDB_FIELD_LAST_UPDATE) ? "last-update" \
112 : ((f) == SDB_FIELD_AGE) ? "age" \
113 : ((f) == SDB_FIELD_INTERVAL) ? "interval" \
114 : ((f) == SDB_FIELD_BACKEND) ? "backend" : "unknown")
116 #define SDB_FIELD_TYPE(f) \
117 (((f) == SDB_FIELD_NAME) ? SDB_TYPE_STRING \
118 : ((f) == SDB_FIELD_LAST_UPDATE) ? SDB_TYPE_DATETIME \
119 : ((f) == SDB_FIELD_AGE) ? SDB_TYPE_DATETIME \
120 : ((f) == SDB_FIELD_INTERVAL) ? SDB_TYPE_DATETIME \
121 : ((f) == SDB_FIELD_BACKEND) ? (SDB_TYPE_ARRAY | SDB_TYPE_STRING) \
122 : -1)
124 /*
125 * sdb_store_clear:
126 * Clear the entire store and remove all stored objects.
127 */
128 void
129 sdb_store_clear(void);
131 /*
132 * sdb_store_host:
133 * Add/update a host in the store. If the host, identified by its
134 * canonicalized name, already exists, it will be updated according to the
135 * specified name and timestamp. Else, a new entry will be created in the
136 * store. Any memory required for storing the entry will be allocated an
137 * managed by the store itself.
138 *
139 * Returns:
140 * - 0 on success
141 * - a positive value if the new entry is older than the currently stored
142 * entry (in this case, no update will happen)
143 * - a negative value on error
144 */
145 int
146 sdb_store_host(const char *name, sdb_time_t last_update);
148 /*
149 * sdb_store_has_host:
150 * sdb_store_get_host:
151 * Query the store for a host by its (canonicalized) name.
152 *
153 * sdb_store_get_host increments the ref count of the host object. The caller
154 * needs to deref it when no longer using it.
155 */
156 _Bool
157 sdb_store_has_host(const char *name);
159 sdb_store_obj_t *
160 sdb_store_get_host(const char *name);
162 /*
163 * sdb_store_attribute:
164 * Add/update a host's attribute in the store. If the attribute, identified by
165 * its key, already exists for the specified host, it will be updated to the
166 * specified values. If the referenced host does not exist, an error will be
167 * reported. Else, a new entry will be created in the store. Any memory
168 * required for storing the entry will be allocated and managed by the store
169 * itself.
170 *
171 * Returns:
172 * - 0 on success
173 * - a positive value if the new entry is older than the currently stored
174 * entry (in this case, no update will happen)
175 * - a negative value on error
176 */
177 int
178 sdb_store_attribute(const char *hostname,
179 const char *key, const sdb_data_t *value,
180 sdb_time_t last_update);
182 /*
183 * sdb_store_service:
184 * Add/update a service in the store. If the service, identified by its name,
185 * already exists for the specified host, it will be updated according to the
186 * specified 'service' object. If the referenced host does not exist, an error
187 * will be reported. Else, a new entry will be created in the store. Any
188 * memory required for storing the entry will be allocated an managed by the
189 * store itself.
190 *
191 * Returns:
192 * - 0 on success
193 * - a positive value if the new entry is older than the currently stored
194 * entry (in this case, no update will happen)
195 * - a negative value on error
196 */
197 int
198 sdb_store_service(const char *hostname, const char *name,
199 sdb_time_t last_update);
201 /*
202 * sdb_store_service_attr:
203 * Add/update a service's attribute in the store. If the attribute, identified
204 * by its key, already exists for the specified service, it will be updated to
205 * the specified value. If the references service (for the specified host)
206 * does not exist, an error will be reported. Any memory required for storing
207 * the entry will be allocated and managed by the store itself.
208 *
209 * Returns:
210 * - 0 on success
211 * - a positive value if the new entry is older than the currently stored
212 * entry (in this case, no update will happen)
213 * - a negative value on error
214 */
215 int
216 sdb_store_service_attr(const char *hostname, const char *service,
217 const char *key, const sdb_data_t *value, sdb_time_t last_update);
219 /*
220 * A metric store describes how to access a metric's data.
221 */
222 typedef struct {
223 const char *type;
224 const char *id;
225 } sdb_metric_store_t;
227 /*
228 * sdb_store_metric:
229 * Add/update a metric in the store. If the metric, identified by its name,
230 * already exists for the specified host, it will be updated according to the
231 * specified 'metric' object. If the referenced host does not exist, an error
232 * will be reported. Else, a new entry will be created in the store. Any
233 * memory required for storing the entry will be allocated an managed by the
234 * store itself.
235 *
236 * If specified, the metric store describes where to access the metric's data.
237 *
238 * Returns:
239 * - 0 on success
240 * - a positive value if the new entry is older than the currently stored
241 * entry (in this case, no update will happen)
242 * - a negative value on error
243 */
244 int
245 sdb_store_metric(const char *hostname, const char *name,
246 sdb_metric_store_t *store, sdb_time_t last_update);
248 /*
249 * sdb_store_metric_attr:
250 * Add/update a metric's attribute in the store. If the attribute, identified
251 * by its key, already exists for the specified metric, it will be updated to
252 * the specified value. If the references metric (for the specified host)
253 * does not exist, an error will be reported. Any memory required for storing
254 * the entry will be allocated and managed by the store itself.
255 *
256 * Returns:
257 * - 0 on success
258 * - a positive value if the new entry is older than the currently stored
259 * entry (in this case, no update will happen)
260 * - a negative value on error
261 */
262 int
263 sdb_store_metric_attr(const char *hostname, const char *metric,
264 const char *key, const sdb_data_t *value, sdb_time_t last_update);
266 /*
267 * sdb_store_fetch_timeseries:
268 * Fetch the time-series described by the specified host's metric and
269 * serialize it as JSON into the provided string buffer.
270 *
271 * Returns:
272 * - 0 on success
273 * - a negative value else
274 */
275 int
276 sdb_store_fetch_timeseries(const char *hostname, const char *metric,
277 sdb_timeseries_opts_t *opts, sdb_strbuf_t *buf);
279 /*
280 * sdb_store_get_field:
281 * Get the value of a stored object's queryable field. The caller is
282 * responsible for freeing any dynamically allocated memory possibly stored in
283 * the returned value. If 'res' is NULL, the function will return whether the
284 * field exists.
285 *
286 * Note: Retrieving the backend this way is not currently supported.
287 *
288 * Returns:
289 * - 0 on success
290 * - a negative value else
291 */
292 int
293 sdb_store_get_field(sdb_store_obj_t *obj, int field, sdb_data_t *res);
295 /*
296 * sdb_store_get_attr:
297 * Get the value of a stored object's attribute. The caller is responsible for
298 * freeing any dynamically allocated memory possibly stored in the returned
299 * value. If 'res' is NULL, the function will return whether the attribute
300 * exists. If specified, only attributes matching the filter will be
301 * considered.
302 *
303 * Returns:
304 * - 0 if the attribute exists
305 * - a negative value else
306 */
307 int
308 sdb_store_get_attr(sdb_store_obj_t *obj, const char *name, sdb_data_t *res,
309 sdb_store_matcher_t *filter);
311 /*
312 * sdb_store_expr_create:
313 * Creates an arithmetic expression implementing the specified operator on the
314 * specified left and right operand.
315 *
316 * Returns:
317 * - an expression object on success
318 * - NULL else
319 */
320 sdb_store_expr_t *
321 sdb_store_expr_create(int op, sdb_store_expr_t *left, sdb_store_expr_t *right);
323 /*
324 * sdb_store_expr_fieldvalue:
325 * Creates an expression which evaluates to the value of the specified
326 * queryable field of a stored object.
327 *
328 * Returns:
329 * - an expression object on success
330 * - NULL else
331 */
332 sdb_store_expr_t *
333 sdb_store_expr_fieldvalue(int field);
335 /*
336 * sdb_store_expr_attrvalue:
337 * Creates an expression which evaluates to the value of the specified
338 * attribute of a stored object. Evaluates to a NULL value if the attribute
339 * does not exist.
340 *
341 * Returns:
342 * - an expression object on success
343 * - NULL else
344 */
345 sdb_store_expr_t *
346 sdb_store_expr_attrvalue(const char *name);
348 /*
349 * sdb_store_expr_constvalue:
350 * Creates an expression which evaluates to the specified constant value.
351 *
352 * Returns:
353 * - an expression object on success
354 * - NULL else
355 */
356 sdb_store_expr_t *
357 sdb_store_expr_constvalue(const sdb_data_t *value);
359 /*
360 * sdb_store_expr_eval:
361 * Evaluate an expression for the specified stored object and stores the
362 * result in 'res'. The result's value will be allocated dynamically if
363 * necessary and, thus, should be free'd by the caller (e.g. using
364 * sdb_data_free_datum). The object may be NULL, in which case the expression
365 * needs to evaluate to a constant value. If specified, only objects matching
366 * the filter will be used during the evaluation.
367 *
368 * Returns:
369 * - 0 on success
370 * - a negative value else
371 */
372 int
373 sdb_store_expr_eval(sdb_store_expr_t *expr, sdb_store_obj_t *obj,
374 sdb_data_t *res, sdb_store_matcher_t *filter);
376 /*
377 * sdb_store_isnull_matcher:
378 * Creates a matcher matching NULL values.
379 */
380 sdb_store_matcher_t *
381 sdb_store_isnull_matcher(sdb_store_expr_t *expr);
383 /*
384 * sdb_store_isnnull_matcher:
385 * Creates a matcher matching non-NULL values.
386 */
387 sdb_store_matcher_t *
388 sdb_store_isnnull_matcher(sdb_store_expr_t *expr);
390 /*
391 * sdb_store_any_matcher:
392 * Creates a matcher iterating over objects of the specified type. It matches
393 * if *any* of those objects match 'm'.
394 */
395 sdb_store_matcher_t *
396 sdb_store_any_matcher(int type, sdb_store_matcher_t *m);
398 /*
399 * sdb_store_all_matcher:
400 * Creates a matcher iterating over objects of the specified type. It matches
401 * if *all* of those objects match 'm'.
402 */
403 sdb_store_matcher_t *
404 sdb_store_all_matcher(int type, sdb_store_matcher_t *m);
406 /*
407 * sdb_store_lt_matcher, sdb_store_le_matcher, sdb_store_eq_matcher,
408 * sdb_store_ge_matcher, sdb_store_gt_matcher:
409 * Create conditional matchers comparing the values of two expressions. The
410 * matcher matches if the left expression compres less than, less or equal
411 * than, equal to, not equal to, greater or equal than, or greater than the
412 * right expression.
413 */
414 sdb_store_matcher_t *
415 sdb_store_lt_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
416 sdb_store_matcher_t *
417 sdb_store_le_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
418 sdb_store_matcher_t *
419 sdb_store_eq_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
420 sdb_store_matcher_t *
421 sdb_store_ne_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
422 sdb_store_matcher_t *
423 sdb_store_ge_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
424 sdb_store_matcher_t *
425 sdb_store_gt_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
427 /*
428 * sdb_store_in_matcher:
429 * Creates a matcher which matches if the right value evaluates to an array
430 * value and the left value is included in that array. See sdb_data_inarray
431 * for more details.
432 */
433 sdb_store_matcher_t *
434 sdb_store_in_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
436 /*
437 * sdb_store_regex_matcher:
438 * Creates a matcher which matches the string value the left expression
439 * evaluates to against the regular expression the right expression evaluates
440 * to. The right expression may either be a constant value regular expression
441 * or string or a dynamic value evaluating to a string. In the latter case,
442 * the string is compiled to a regex every time the matcher is executed.
443 */
444 sdb_store_matcher_t *
445 sdb_store_regex_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
447 /*
448 * sdb_store_nregex_matcher:
449 * Creates a regex matcher just like sdb_store_regex_matcher except that it
450 * matches in case the regular expression does not match.
451 */
452 sdb_store_matcher_t *
453 sdb_store_nregex_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
455 /*
456 * sdb_store_matcher_op_cb:
457 * Callback constructing a matcher operator.
458 */
459 typedef sdb_store_matcher_t *(*sdb_store_matcher_op_cb)
460 (sdb_store_expr_t *, sdb_store_expr_t *);
462 /*
463 * sdb_store_parse_matcher_op:
464 * Parse a matcher operator and return a constructor for the respective
465 * matcher.
466 *
467 * Returns:
468 * - matcher operator constructor on success
469 * - NULL else
470 */
471 sdb_store_matcher_op_cb
472 sdb_store_parse_matcher_op(const char *op);
474 /*
475 * sdb_store_parse_object_type:
476 * Parse the type name of a stored object.
477 *
478 * Returns:
479 * - the object type on success
480 * - a negative value else
481 */
482 int
483 sdb_store_parse_object_type(const char *name);
485 /*
486 * sdb_store_parse_object_type_plural:
487 * Parse the type name (plural) of a stored object.
488 *
489 * Returns:
490 * - the object type on success
491 * - a negative value else
492 */
493 int
494 sdb_store_parse_object_type_plural(const char *name);
496 /*
497 * sdb_store_parse_field_name:
498 * Parse the name of a stored object's queryable field.
499 *
500 * Returns:
501 * - the field id on success
502 * - a negative value else
503 */
504 int
505 sdb_store_parse_field_name(const char *name);
507 /*
508 * sdb_store_dis_matcher:
509 * Creates a matcher matching the disjunction (logical OR) of two matchers.
510 */
511 sdb_store_matcher_t *
512 sdb_store_dis_matcher(sdb_store_matcher_t *left, sdb_store_matcher_t *right);
514 /*
515 * sdb_store_con_matcher:
516 * Creates a matcher matching the conjunction (logical AND) of two matchers.
517 */
518 sdb_store_matcher_t *
519 sdb_store_con_matcher(sdb_store_matcher_t *left, sdb_store_matcher_t *right);
521 /*
522 * sdb_store_con_matcher::
523 * Creates a matcher matching the inverse (logical NOT) of a matcher.
524 */
525 sdb_store_matcher_t *
526 sdb_store_inv_matcher(sdb_store_matcher_t *m);
528 /*
529 * sdb_store_matcher_matches:
530 * Check whether the specified matcher matches the specified store object. If
531 * specified, the filter will be used to preselect objects for further
532 * evaluation. It is applied to any object that's used during the evaluation
533 * of the matcher. Only those objects matching the filter will be considered.
534 *
535 * Note that the filter is applied to all object types (hosts, service,
536 * metric, attribute). Thus, any object-specific matchers are mostly unsuited
537 * for this purpose and, if used, may result in unexpected behavior.
538 *
539 * Returns:
540 * - 1 if the object matches
541 * - 0 else
542 */
543 int
544 sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
545 sdb_store_matcher_t *filter);
547 /*
548 * sdb_store_lookup_cb:
549 * Lookup callback. It is called for each matching object when looking up data
550 * in the store passing on the lookup filter and the specified user-data. The
551 * lookup aborts early if the callback returns non-zero.
552 */
553 typedef int (*sdb_store_lookup_cb)(sdb_store_obj_t *obj,
554 sdb_store_matcher_t *filter, void *user_data);
556 /*
557 * sdb_store_scan:
558 * Look up objects of the specified type in the store. The specified callback
559 * function is called for each object in the store matching 'm'. The function
560 * performs a full scan of all objects stored in the database. If specified,
561 * the filter will be used to preselect objects for further evaluation. See
562 * the description of 'sdb_store_matcher_matches' for details.
563 *
564 * Returns:
565 * - 0 on success
566 * - a negative value else
567 */
568 int
569 sdb_store_scan(int type, sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
570 sdb_store_lookup_cb cb, void *user_data);
572 /*
573 * Flags for serialization functions.
574 *
575 * By default, the full host object will be included in the serialized output.
576 * When specifying any of the flags, the respective information will be left
577 * out. The SKIP_EMPTY flags may be used to skip host objects entirely.
578 */
579 enum {
580 SDB_SKIP_ATTRIBUTES = 1 << 0,
581 SDB_SKIP_SERVICES = 1 << 1,
582 SDB_SKIP_METRICS = 1 << 2,
583 SDB_SKIP_SERVICE_ATTRIBUTES = 1 << 3,
585 SDB_SKIP_ALL = (1 << 8) - 1,
587 /* skip hosts if they do not reference any services/metrics */
588 SDB_SKIP_EMPTY_SERVICES = 1 << 8,
589 SDB_SKIP_EMPTY_METRICS = 1 << 9,
590 };
592 /*
593 * sdb_store_tojson:
594 * Serialize the entire store to JSON and append the result to the specified
595 * buffer. If specified, only objects matching the filter will be included in
596 * the result (see sdb_store_host_tojson for details).
597 *
598 * Returns:
599 * - 0 on success
600 * - a negative value on error
601 */
602 int
603 sdb_store_tojson(sdb_strbuf_t *buf, sdb_store_matcher_t *filter, int flags);
605 /*
606 * sdb_store_host_tojson:
607 * Serialize a host object to JSON and append the result to the specified
608 * buffer. If specified, only objects matching the filter will be included in
609 * the result. The filter is applied to each object individually and, thus,
610 * should not be of any object-type specific kind. The filter is never applied
611 * to the specified host object; the caller is responsible for this and for
612 * correctly handling skipped hosts.
613 *
614 * Returns:
615 * - 0 on success
616 * - a negative value on error
617 */
618 int
619 sdb_store_host_tojson(sdb_store_obj_t *host, sdb_strbuf_t *buf,
620 sdb_store_matcher_t *filter, int flags);
622 /*
623 * sdb_store_json_formatter:
624 * Create a JSON formatter writing to the specified buffer.
625 */
626 sdb_store_json_formatter_t *
627 sdb_store_json_formatter(sdb_strbuf_t *buf);
629 /*
630 * sdb_store_json_emit:
631 * Serialize a single object to JSON adding it to the string buffer associated
632 * with the formatter object. The serialized object will not include
633 * attributes or any child objects. Instead, call the function again for each
634 * of those objects. All attributes have to be emitted before any other
635 * children types. Use sdb_store_json_emit_full() to emit a full (filtered)
636 * object.
637 *
638 * Note that the output might not be valid JSON before calling
639 * sdb_store_json_finish().
640 *
641 * Returns:
642 * - 0 on success
643 * - a negative value else
644 */
645 int
646 sdb_store_json_emit(sdb_store_json_formatter_t *f, sdb_store_obj_t *obj);
648 /*
649 * sdb_store_json_emit_full:
650 * Serialize a single object including it's attributes and all children to
651 * JSON, adding it to the string buffer associated with the formatter object.
652 * The filter, if specified, is applied to each attribute and child object.
653 * Only matching objects will be included in the output.
654 *
655 * Note that the output might not be valid JSON before calling
656 * sdb_store_json_finish().
657 *
658 * Returns:
659 * - 0 on success
660 * - a negative value else
661 */
662 int
663 sdb_store_json_emit_full(sdb_store_json_formatter_t *f, sdb_store_obj_t *obj,
664 sdb_store_matcher_t *filter);
666 /*
667 * sdb_store_json_finish:
668 * Finish the JSON output. This function has to be called once after emiting
669 * all objects.
670 */
671 int
672 sdb_store_json_finish(sdb_store_json_formatter_t *f);
674 #ifdef __cplusplus
675 } /* extern "C" */
676 #endif
678 #endif /* ! SDB_CORE_STORE_H */
680 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */