2 * collectd - src/utils_cache.c
3 * Copyright (C) 2007,2008 Florian octo Forster
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Florian octo Forster <octo at verplant.org>
25 #include "utils_avltree.h"
26 #include "utils_cache.h"
27 #include "utils_threshold.h"
28 #include "meta_data.h"
33 typedef struct cache_entry_s
35 char name[6 * DATA_MAX_NAME_LEN];
37 gauge_t *values_gauge;
39 /* Time contained in the package
40 * (for calculating rates) */
42 /* Time according to the local clock
43 * (for purging old entries) */
45 /* Interval in which the data is collected
46 * (for purding old entries) */
52 * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
53 * ! 0 ! 1 ! 2 ! 3 ! 4 ! 5 ! 6 ! 7 ! 8 ! ...
54 * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
55 * ! ds0 ! ds1 ! ds2 ! ds0 ! ds1 ! ds2 ! ds0 ! ds1 ! ds2 ! ...
56 * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
57 * ! t = 0 ! t = 1 ! t = 2 ! ...
58 * +-----------------+-----------------+-----------------+----
61 size_t history_index; /* points to the next position to write to. */
62 size_t history_length;
67 static c_avl_tree_t *cache_tree = NULL;
68 static pthread_mutex_t cache_lock = PTHREAD_MUTEX_INITIALIZER;
70 static int cache_compare (const cache_entry_t *a, const cache_entry_t *b)
72 assert ((a != NULL) && (b != NULL));
73 return (strcmp (a->name, b->name));
74 } /* int cache_compare */
76 static cache_entry_t *cache_alloc (int values_num)
80 ce = (cache_entry_t *) malloc (sizeof (cache_entry_t));
83 ERROR ("utils_cache: cache_alloc: malloc failed.");
86 memset (ce, '\0', sizeof (cache_entry_t));
87 ce->values_num = values_num;
89 ce->values_gauge = calloc (values_num, sizeof (*ce->values_gauge));
90 ce->values_raw = calloc (values_num, sizeof (*ce->values_raw));
91 if ((ce->values_gauge == NULL) || (ce->values_raw == NULL))
93 sfree (ce->values_gauge);
94 sfree (ce->values_raw);
96 ERROR ("utils_cache: cache_alloc: calloc failed.");
101 ce->history_length = 0;
105 } /* cache_entry_t *cache_alloc */
107 static void cache_free (cache_entry_t *ce)
112 sfree (ce->values_gauge);
113 sfree (ce->values_raw);
115 if (ce->meta != NULL)
117 meta_data_destroy (ce->meta);
121 } /* void cache_free */
123 static int uc_send_notification (const char *name)
125 cache_entry_t *ce = NULL;
131 char *plugin_instance;
137 name_copy = strdup (name);
138 if (name_copy == NULL)
140 ERROR ("uc_send_notification: strdup failed.");
144 status = parse_identifier (name_copy, &host,
145 &plugin, &plugin_instance,
146 &type, &type_instance);
149 ERROR ("uc_send_notification: Cannot parse name `%s'", name);
153 /* Copy the associative members */
154 notification_init (&n, NOTIF_FAILURE, /* host = */ NULL,
155 host, plugin, plugin_instance, type, type_instance);
158 name_copy = host = plugin = plugin_instance = type = type_instance = NULL;
160 pthread_mutex_lock (&cache_lock);
163 * Set the time _after_ getting the lock because we don't know how long
164 * acquiring the lock takes and we will use this time later to decide
165 * whether or not the state is OKAY.
169 status = c_avl_get (cache_tree, name, (void *) &ce);
172 pthread_mutex_unlock (&cache_lock);
177 /* Check if the entry has been updated in the meantime */
178 if ((n.time - ce->last_update) < (2 * ce->interval))
180 ce->state = STATE_OKAY;
181 pthread_mutex_unlock (&cache_lock);
186 ssnprintf (n.message, sizeof (n.message),
187 "%s has not been updated for %.3f seconds.", name,
188 CDTIME_T_TO_DOUBLE (n.time - ce->last_update));
190 pthread_mutex_unlock (&cache_lock);
192 plugin_dispatch_notification (&n);
195 } /* int uc_send_notification */
197 static void uc_check_range (const data_set_t *ds, cache_entry_t *ce)
201 for (i = 0; i < ds->ds_num; i++)
203 if (isnan (ce->values_gauge[i]))
205 else if (ce->values_gauge[i] < ds->ds[i].min)
206 ce->values_gauge[i] = NAN;
207 else if (ce->values_gauge[i] > ds->ds[i].max)
208 ce->values_gauge[i] = NAN;
210 } /* void uc_check_range */
212 static int uc_insert (const data_set_t *ds, const value_list_t *vl,
219 /* `cache_lock' has been locked by `uc_update' */
221 key_copy = strdup (key);
222 if (key_copy == NULL)
224 ERROR ("uc_insert: strdup failed.");
228 ce = cache_alloc (ds->ds_num);
232 ERROR ("uc_insert: cache_alloc (%i) failed.", ds->ds_num);
236 sstrncpy (ce->name, key, sizeof (ce->name));
238 for (i = 0; i < ds->ds_num; i++)
240 switch (ds->ds[i].type)
242 case DS_TYPE_COUNTER:
243 ce->values_gauge[i] = NAN;
244 ce->values_raw[i].counter = vl->values[i].counter;
248 ce->values_gauge[i] = vl->values[i].gauge;
249 ce->values_raw[i].gauge = vl->values[i].gauge;
253 ce->values_gauge[i] = NAN;
254 ce->values_raw[i].derive = vl->values[i].derive;
257 case DS_TYPE_ABSOLUTE:
258 ce->values_gauge[i] = NAN;
259 if (vl->interval > 0)
260 ce->values_gauge[i] = ((double) vl->values[i].absolute)
261 / ((double) vl->interval);
262 ce->values_raw[i].absolute = vl->values[i].absolute;
266 /* This shouldn't happen. */
267 ERROR ("uc_insert: Don't know how to handle data source type %i.",
270 } /* switch (ds->ds[i].type) */
273 /* Prune invalid gauge data */
274 uc_check_range (ds, ce);
276 ce->last_time = vl->time;
277 ce->last_update = cdtime ();
278 ce->interval = vl->interval;
279 ce->state = STATE_OKAY;
281 if (c_avl_insert (cache_tree, key_copy, ce) != 0)
284 ERROR ("uc_insert: c_avl_insert failed.");
288 DEBUG ("uc_insert: Added %s to the cache.", key);
290 } /* int uc_insert */
294 if (cache_tree == NULL)
295 cache_tree = c_avl_create ((int (*) (const void *, const void *))
301 int uc_check_timeout (void)
310 c_avl_iterator_t *iter;
313 pthread_mutex_lock (&cache_lock);
317 /* Build a list of entries to be flushed */
318 iter = c_avl_get_iterator (cache_tree);
319 while (c_avl_iterator_next (iter, (void *) &key, (void *) &ce) == 0)
321 /* If entry has not been updated, add to `keys' array */
322 /* FIXME: Remove macro once "ce->interval" is of type cdtime_t. */
323 if ((now - ce->last_update) >= TIME_T_TO_CDTIME_T (timeout_g * ce->interval))
327 tmp = (char **) realloc ((void *) keys,
328 (keys_len + 1) * sizeof (char *));
331 ERROR ("uc_check_timeout: realloc failed.");
332 c_avl_iterator_destroy (iter);
334 pthread_mutex_unlock (&cache_lock);
339 keys[keys_len] = strdup (key);
340 if (keys[keys_len] == NULL)
342 ERROR ("uc_check_timeout: strdup failed.");
347 } /* while (c_avl_iterator_next) */
351 for (i = 0; i < keys_len; i++)
355 status = ut_check_interesting (keys[i]);
359 ERROR ("uc_check_timeout: ut_check_interesting failed.");
363 else if (status == 0) /* ``service'' is uninteresting */
365 DEBUG ("uc_check_timeout: %s is missing but ``uninteresting''",
368 status = c_avl_remove (cache_tree, keys[i],
369 (void *) &key, (void *) &ce);
372 ERROR ("uc_check_timeout: c_avl_remove (%s) failed.", keys[i]);
381 /* If we get here, the value is ``interesting''. Query the record from the
382 * cache and update the state field. */
383 if (c_avl_get (cache_tree, keys[i], (void *) &ce) != 0)
385 ERROR ("uc_check_timeout: cannot get data for %s from cache", keys[i]);
386 /* Do not free `keys[i]' so a notification is sent further down. */
391 if (status == 2) /* persist */
393 DEBUG ("uc_check_timeout: %s is missing, sending notification.",
395 ce->state = STATE_MISSING;
396 /* Do not free `keys[i]' so a notification is sent further down. */
398 else if (status == 1) /* do not persist */
400 if (ce->state == STATE_MISSING)
402 DEBUG ("uc_check_timeout: %s is missing but "
403 "notification has already been sent.",
405 /* Set `keys[i]' to NULL to no notification is sent. */
408 else /* (ce->state != STATE_MISSING) */
410 DEBUG ("uc_check_timeout: %s is missing, sending one notification.",
412 ce->state = STATE_MISSING;
413 /* Do not free `keys[i]' so a notification is sent further down. */
418 WARNING ("uc_check_timeout: ut_check_interesting (%s) returned "
419 "invalid status %i.",
424 /* Make really sure the next iteration doesn't work with this pointer.
425 * There have been too many bugs in the past.. :/ -- octo */
427 } /* for (keys[i]) */
429 c_avl_iterator_destroy (iter);
431 pthread_mutex_unlock (&cache_lock);
433 for (i = 0; i < keys_len; i++)
438 uc_send_notification (keys[i]);
445 } /* int uc_check_timeout */
447 int uc_update (const data_set_t *ds, const value_list_t *vl)
449 char name[6 * DATA_MAX_NAME_LEN];
450 cache_entry_t *ce = NULL;
451 int send_okay_notification = 0;
452 cdtime_t update_delay = 0;
457 if (FORMAT_VL (name, sizeof (name), vl) != 0)
459 ERROR ("uc_update: FORMAT_VL failed.");
463 pthread_mutex_lock (&cache_lock);
465 status = c_avl_get (cache_tree, name, (void *) &ce);
466 if (status != 0) /* entry does not yet exist */
468 status = uc_insert (ds, vl, name);
469 pthread_mutex_unlock (&cache_lock);
474 assert (ce->values_num == ds->ds_num);
476 if (ce->last_time >= vl->time)
478 pthread_mutex_unlock (&cache_lock);
479 NOTICE ("uc_update: Value too old: name = %s; value time = %.3f; "
480 "last cache update = %.3f;",
482 CDTIME_T_TO_DOUBLE (vl->time),
483 CDTIME_T_TO_DOUBLE (ce->last_time));
487 /* Send a notification (after the lock has been released) if we switch the
488 * state from something else to `okay'. */
489 if (ce->state == STATE_MISSING)
491 send_okay_notification = 1;
492 ce->state = STATE_OKAY;
493 update_delay = cdtime () - ce->last_update;
496 for (i = 0; i < ds->ds_num; i++)
498 switch (ds->ds[i].type)
500 case DS_TYPE_COUNTER:
504 /* check if the counter has wrapped around */
505 if (vl->values[i].counter < ce->values_raw[i].counter)
507 if (ce->values_raw[i].counter <= 4294967295U)
508 diff = (4294967295U - ce->values_raw[i].counter)
509 + vl->values[i].counter;
511 diff = (18446744073709551615ULL - ce->values_raw[i].counter)
512 + vl->values[i].counter;
514 else /* counter has NOT wrapped around */
516 diff = vl->values[i].counter - ce->values_raw[i].counter;
519 ce->values_gauge[i] = ((double) diff)
520 / (CDTIME_T_TO_DOUBLE (vl->time - ce->last_time));
521 ce->values_raw[i].counter = vl->values[i].counter;
526 ce->values_raw[i].gauge = vl->values[i].gauge;
527 ce->values_gauge[i] = vl->values[i].gauge;
534 diff = vl->values[i].derive - ce->values_raw[i].derive;
536 ce->values_gauge[i] = ((double) diff)
537 / (CDTIME_T_TO_DOUBLE (vl->time - ce->last_time));
538 ce->values_raw[i].derive = vl->values[i].derive;
542 case DS_TYPE_ABSOLUTE:
543 ce->values_gauge[i] = ((double) vl->values[i].absolute)
544 / (CDTIME_T_TO_DOUBLE (vl->time - ce->last_time));
545 ce->values_raw[i].absolute = vl->values[i].absolute;
549 /* This shouldn't happen. */
550 pthread_mutex_unlock (&cache_lock);
551 ERROR ("uc_update: Don't know how to handle data source type %i.",
554 } /* switch (ds->ds[i].type) */
556 DEBUG ("uc_update: %s: ds[%i] = %lf", name, i, ce->values_gauge[i]);
559 /* Update the history if it exists. */
560 if (ce->history != NULL)
562 assert (ce->history_index < ce->history_length);
563 for (i = 0; i < ce->values_num; i++)
565 size_t hist_idx = (ce->values_num * ce->history_index) + i;
566 ce->history[hist_idx] = ce->values_gauge[i];
569 assert (ce->history_length > 0);
570 ce->history_index = (ce->history_index + 1) % ce->history_length;
573 /* Prune invalid gauge data */
574 uc_check_range (ds, ce);
576 ce->last_time = vl->time;
577 ce->last_update = cdtime ();
578 ce->interval = vl->interval;
580 pthread_mutex_unlock (&cache_lock);
582 if (send_okay_notification == 0)
585 /* Do not send okay notifications for uninteresting values, i. e. values for
586 * which no threshold is configured. */
587 status = ut_check_interesting (name);
591 /* Initialize the notification */
592 memset (&n, '\0', sizeof (n));
593 NOTIFICATION_INIT_VL (&n, vl, ds);
595 n.severity = NOTIF_OKAY;
598 ssnprintf (n.message, sizeof (n.message),
599 "Received a value for %s. It was missing for %u seconds.",
600 name, (unsigned int) update_delay);
602 plugin_dispatch_notification (&n);
605 } /* int uc_update */
607 int uc_get_rate_by_name (const char *name, gauge_t **ret_values, size_t *ret_values_num)
611 cache_entry_t *ce = NULL;
614 pthread_mutex_lock (&cache_lock);
616 if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
620 /* remove missing values from getval */
621 if (ce->state == STATE_MISSING)
627 ret_num = ce->values_num;
628 ret = (gauge_t *) malloc (ret_num * sizeof (gauge_t));
631 ERROR ("utils_cache: uc_get_rate_by_name: malloc failed.");
636 memcpy (ret, ce->values_gauge, ret_num * sizeof (gauge_t));
642 DEBUG ("utils_cache: uc_get_rate_by_name: No such value: %s", name);
646 pthread_mutex_unlock (&cache_lock);
651 *ret_values_num = ret_num;
655 } /* gauge_t *uc_get_rate_by_name */
657 gauge_t *uc_get_rate (const data_set_t *ds, const value_list_t *vl)
659 char name[6 * DATA_MAX_NAME_LEN];
664 if (FORMAT_VL (name, sizeof (name), vl) != 0)
666 ERROR ("utils_cache: uc_get_rate: FORMAT_VL failed.");
670 status = uc_get_rate_by_name (name, &ret, &ret_num);
674 /* This is important - the caller has no other way of knowing how many
675 * values are returned. */
676 if (ret_num != (size_t) ds->ds_num)
678 ERROR ("utils_cache: uc_get_rate: ds[%s] has %i values, "
679 "but uc_get_rate_by_name returned %zu.",
680 ds->type, ds->ds_num, ret_num);
686 } /* gauge_t *uc_get_rate */
688 int uc_get_names (char ***ret_names, cdtime_t **ret_times, size_t *ret_number)
690 c_avl_iterator_t *iter;
692 cache_entry_t *value;
695 cdtime_t *times = NULL;
700 if ((ret_names == NULL) || (ret_number == NULL))
703 pthread_mutex_lock (&cache_lock);
705 iter = c_avl_get_iterator (cache_tree);
706 while (c_avl_iterator_next (iter, (void *) &key, (void *) &value) == 0)
710 /* remove missing values when list values */
711 if (value->state == STATE_MISSING)
714 if (ret_times != NULL)
718 tmp_times = (cdtime_t *) realloc (times, sizeof (cdtime_t) * (number + 1));
719 if (tmp_times == NULL)
725 times[number] = value->last_time;
728 temp = (char **) realloc (names, sizeof (char *) * (number + 1));
735 names[number] = strdup (key);
736 if (names[number] == NULL)
742 } /* while (c_avl_iterator_next) */
744 c_avl_iterator_destroy (iter);
745 pthread_mutex_unlock (&cache_lock);
751 for (i = 0; i < number; i++)
761 if (ret_times != NULL)
763 *ret_number = number;
766 } /* int uc_get_names */
768 int uc_get_state (const data_set_t *ds, const value_list_t *vl)
770 char name[6 * DATA_MAX_NAME_LEN];
771 cache_entry_t *ce = NULL;
772 int ret = STATE_ERROR;
774 if (FORMAT_VL (name, sizeof (name), vl) != 0)
776 ERROR ("uc_get_state: FORMAT_VL failed.");
777 return (STATE_ERROR);
780 pthread_mutex_lock (&cache_lock);
782 if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
788 pthread_mutex_unlock (&cache_lock);
791 } /* int uc_get_state */
793 int uc_set_state (const data_set_t *ds, const value_list_t *vl, int state)
795 char name[6 * DATA_MAX_NAME_LEN];
796 cache_entry_t *ce = NULL;
799 if (FORMAT_VL (name, sizeof (name), vl) != 0)
801 ERROR ("uc_get_state: FORMAT_VL failed.");
802 return (STATE_ERROR);
805 pthread_mutex_lock (&cache_lock);
807 if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
814 pthread_mutex_unlock (&cache_lock);
817 } /* int uc_set_state */
819 int uc_get_history_by_name (const char *name,
820 gauge_t *ret_history, size_t num_steps, size_t num_ds)
822 cache_entry_t *ce = NULL;
826 pthread_mutex_lock (&cache_lock);
828 status = c_avl_get (cache_tree, name, (void *) &ce);
831 pthread_mutex_unlock (&cache_lock);
835 if (((size_t) ce->values_num) != num_ds)
837 pthread_mutex_unlock (&cache_lock);
841 /* Check if there are enough values available. If not, increase the buffer
843 if (ce->history_length < num_steps)
848 tmp = realloc (ce->history, sizeof (*ce->history)
849 * num_steps * ce->values_num);
852 pthread_mutex_unlock (&cache_lock);
856 for (i = ce->history_length * ce->values_num;
857 i < (num_steps * ce->values_num);
862 ce->history_length = num_steps;
863 } /* if (ce->history_length < num_steps) */
865 /* Copy the values to the output buffer. */
866 for (i = 0; i < num_steps; i++)
871 if (i < ce->history_index)
872 src_index = ce->history_index - (i + 1);
874 src_index = ce->history_length + ce->history_index - (i + 1);
875 src_index = src_index * num_ds;
877 dst_index = i * num_ds;
879 memcpy (ret_history + dst_index, ce->history + src_index,
880 sizeof (*ret_history) * num_ds);
883 pthread_mutex_unlock (&cache_lock);
886 } /* int uc_get_history_by_name */
888 int uc_get_history (const data_set_t *ds, const value_list_t *vl,
889 gauge_t *ret_history, size_t num_steps, size_t num_ds)
891 char name[6 * DATA_MAX_NAME_LEN];
893 if (FORMAT_VL (name, sizeof (name), vl) != 0)
895 ERROR ("utils_cache: uc_get_history: FORMAT_VL failed.");
899 return (uc_get_history_by_name (name, ret_history, num_steps, num_ds));
900 } /* int uc_get_history */
902 int uc_get_hits (const data_set_t *ds, const value_list_t *vl)
904 char name[6 * DATA_MAX_NAME_LEN];
905 cache_entry_t *ce = NULL;
906 int ret = STATE_ERROR;
908 if (FORMAT_VL (name, sizeof (name), vl) != 0)
910 ERROR ("uc_get_state: FORMAT_VL failed.");
911 return (STATE_ERROR);
914 pthread_mutex_lock (&cache_lock);
916 if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
922 pthread_mutex_unlock (&cache_lock);
925 } /* int uc_get_hits */
927 int uc_set_hits (const data_set_t *ds, const value_list_t *vl, int hits)
929 char name[6 * DATA_MAX_NAME_LEN];
930 cache_entry_t *ce = NULL;
933 if (FORMAT_VL (name, sizeof (name), vl) != 0)
935 ERROR ("uc_get_state: FORMAT_VL failed.");
936 return (STATE_ERROR);
939 pthread_mutex_lock (&cache_lock);
941 if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
948 pthread_mutex_unlock (&cache_lock);
951 } /* int uc_set_hits */
953 int uc_inc_hits (const data_set_t *ds, const value_list_t *vl, int step)
955 char name[6 * DATA_MAX_NAME_LEN];
956 cache_entry_t *ce = NULL;
959 if (FORMAT_VL (name, sizeof (name), vl) != 0)
961 ERROR ("uc_get_state: FORMAT_VL failed.");
962 return (STATE_ERROR);
965 pthread_mutex_lock (&cache_lock);
967 if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
971 ce->hits = ret + step;
974 pthread_mutex_unlock (&cache_lock);
977 } /* int uc_inc_hits */
980 * Meta data interface
982 /* XXX: This function will acquire `cache_lock' but will not free it! */
983 static meta_data_t *uc_get_meta (const value_list_t *vl) /* {{{ */
985 char name[6 * DATA_MAX_NAME_LEN];
986 cache_entry_t *ce = NULL;
989 status = FORMAT_VL (name, sizeof (name), vl);
992 ERROR ("utils_cache: uc_get_meta: FORMAT_VL failed.");
996 pthread_mutex_lock (&cache_lock);
998 status = c_avl_get (cache_tree, name, (void *) &ce);
1001 pthread_mutex_unlock (&cache_lock);
1004 assert (ce != NULL);
1006 if (ce->meta == NULL)
1007 ce->meta = meta_data_create ();
1009 if (ce->meta == NULL)
1010 pthread_mutex_unlock (&cache_lock);
1013 } /* }}} meta_data_t *uc_get_meta */
1015 /* Sorry about this preprocessor magic, but it really makes this file much
1017 #define UC_WRAP(wrap_function) { \
1018 meta_data_t *meta; \
1020 meta = uc_get_meta (vl); \
1021 if (meta == NULL) return (-1); \
1022 status = wrap_function (meta, key); \
1023 pthread_mutex_unlock (&cache_lock); \
1026 int uc_meta_data_exists (const value_list_t *vl, const char *key)
1027 UC_WRAP (meta_data_exists)
1029 int uc_meta_data_delete (const value_list_t *vl, const char *key)
1030 UC_WRAP (meta_data_delete)
1033 /* We need a new version of this macro because the following functions take
1035 #define UC_WRAP(wrap_function) { \
1036 meta_data_t *meta; \
1038 meta = uc_get_meta (vl); \
1039 if (meta == NULL) return (-1); \
1040 status = wrap_function (meta, key, value); \
1041 pthread_mutex_unlock (&cache_lock); \
1044 int uc_meta_data_add_string (const value_list_t *vl,
1047 UC_WRAP(meta_data_add_string)
1048 int uc_meta_data_add_signed_int (const value_list_t *vl,
1051 UC_WRAP(meta_data_add_signed_int)
1052 int uc_meta_data_add_unsigned_int (const value_list_t *vl,
1055 UC_WRAP(meta_data_add_unsigned_int)
1056 int uc_meta_data_add_double (const value_list_t *vl,
1059 UC_WRAP(meta_data_add_double)
1060 int uc_meta_data_add_boolean (const value_list_t *vl,
1063 UC_WRAP(meta_data_add_boolean)
1065 int uc_meta_data_get_string (const value_list_t *vl,
1068 UC_WRAP(meta_data_get_string)
1069 int uc_meta_data_get_signed_int (const value_list_t *vl,
1072 UC_WRAP(meta_data_get_signed_int)
1073 int uc_meta_data_get_unsigned_int (const value_list_t *vl,
1076 UC_WRAP(meta_data_get_unsigned_int)
1077 int uc_meta_data_get_double (const value_list_t *vl,
1080 UC_WRAP(meta_data_get_double)
1081 int uc_meta_data_get_boolean (const value_list_t *vl,
1084 UC_WRAP(meta_data_get_boolean)
1087 /* vim: set sw=2 ts=8 sts=2 tw=78 : */