#include "collectd.h"
#include "common.h"
+#include "meta_data.h"
#include "plugin.h"
#include "utils_avltree.h"
#include "utils_cache.h"
-#include "meta_data.h"
#include <assert.h>
-typedef struct cache_entry_s
-{
- char name[6 * DATA_MAX_NAME_LEN];
- size_t values_num;
- gauge_t *values_gauge;
- value_t *values_raw;
- /* Time contained in the package
- * (for calculating rates) */
- cdtime_t last_time;
- /* Time according to the local clock
- * (for purging old entries) */
- cdtime_t last_update;
- /* Interval in which the data is collected
- * (for purging old entries) */
- cdtime_t interval;
- int state;
- int hits;
-
- /*
- * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
- * ! 0 ! 1 ! 2 ! 3 ! 4 ! 5 ! 6 ! 7 ! 8 ! ...
- * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
- * ! ds0 ! ds1 ! ds2 ! ds0 ! ds1 ! ds2 ! ds0 ! ds1 ! ds2 ! ...
- * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
- * ! t = 0 ! t = 1 ! t = 2 ! ...
- * +-----------------+-----------------+-----------------+----
- */
- gauge_t *history;
- size_t history_index; /* points to the next position to write to. */
- size_t history_length;
-
- meta_data_t *meta;
+typedef struct cache_entry_s {
+ char name[6 * DATA_MAX_NAME_LEN];
+ size_t values_num;
+ gauge_t *values_gauge;
+ value_t *values_raw;
+ /* Time contained in the package
+ * (for calculating rates) */
+ cdtime_t last_time;
+ /* Time according to the local clock
+ * (for purging old entries) */
+ cdtime_t last_update;
+ /* Interval in which the data is collected
+ * (for purging old entries) */
+ cdtime_t interval;
+ int state;
+ int hits;
+
+ /*
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
+ * ! 0 ! 1 ! 2 ! 3 ! 4 ! 5 ! 6 ! 7 ! 8 ! ...
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
+ * ! ds0 ! ds1 ! ds2 ! ds0 ! ds1 ! ds2 ! ds0 ! ds1 ! ds2 ! ...
+ * +-----+-----+-----+-----+-----+-----+-----+-----+-----+----
+ * ! t = 0 ! t = 1 ! t = 2 ! ...
+ * +-----------------+-----------------+-----------------+----
+ */
+ gauge_t *history;
+ size_t history_index; /* points to the next position to write to. */
+ size_t history_length;
+
+ meta_data_t *meta;
} cache_entry_t;
struct uc_iter_s {
cache_entry_t *entry;
};
-static c_avl_tree_t *cache_tree = NULL;
+static c_avl_tree_t *cache_tree = NULL;
static pthread_mutex_t cache_lock = PTHREAD_MUTEX_INITIALIZER;
-static int cache_compare (const cache_entry_t *a, const cache_entry_t *b)
-{
+static int cache_compare(const cache_entry_t *a, const cache_entry_t *b) {
#if COLLECT_DEBUG
- assert ((a != NULL) && (b != NULL));
+ assert((a != NULL) && (b != NULL));
#endif
- return (strcmp (a->name, b->name));
+ return strcmp(a->name, b->name);
} /* int cache_compare */
-static cache_entry_t *cache_alloc (size_t values_num)
-{
+static cache_entry_t *cache_alloc(size_t values_num) {
cache_entry_t *ce;
- ce = calloc (1, sizeof (*ce));
- if (ce == NULL)
- {
- ERROR ("utils_cache: cache_alloc: calloc failed.");
- return (NULL);
+ ce = calloc(1, sizeof(*ce));
+ if (ce == NULL) {
+ ERROR("utils_cache: cache_alloc: calloc failed.");
+ return NULL;
}
ce->values_num = values_num;
- ce->values_gauge = calloc (values_num, sizeof (*ce->values_gauge));
- ce->values_raw = calloc (values_num, sizeof (*ce->values_raw));
- if ((ce->values_gauge == NULL) || (ce->values_raw == NULL))
- {
- sfree (ce->values_gauge);
- sfree (ce->values_raw);
- sfree (ce);
- ERROR ("utils_cache: cache_alloc: calloc failed.");
- return (NULL);
+ ce->values_gauge = calloc(values_num, sizeof(*ce->values_gauge));
+ ce->values_raw = calloc(values_num, sizeof(*ce->values_raw));
+ if ((ce->values_gauge == NULL) || (ce->values_raw == NULL)) {
+ sfree(ce->values_gauge);
+ sfree(ce->values_raw);
+ sfree(ce);
+ ERROR("utils_cache: cache_alloc: calloc failed.");
+ return NULL;
}
ce->history = NULL;
ce->history_length = 0;
ce->meta = NULL;
- return (ce);
+ return ce;
} /* cache_entry_t *cache_alloc */
-static void cache_free (cache_entry_t *ce)
-{
+static void cache_free(cache_entry_t *ce) {
if (ce == NULL)
return;
- sfree (ce->values_gauge);
- sfree (ce->values_raw);
- sfree (ce->history);
- if (ce->meta != NULL)
- {
- meta_data_destroy (ce->meta);
+ sfree(ce->values_gauge);
+ sfree(ce->values_raw);
+ sfree(ce->history);
+ if (ce->meta != NULL) {
+ meta_data_destroy(ce->meta);
ce->meta = NULL;
}
- sfree (ce);
+ sfree(ce);
} /* void cache_free */
-static void uc_check_range (const data_set_t *ds, cache_entry_t *ce)
-{
- for (size_t i = 0; i < ds->ds_num; i++)
- {
- if (isnan (ce->values_gauge[i]))
+static void uc_check_range(const data_set_t *ds, cache_entry_t *ce) {
+ for (size_t i = 0; i < ds->ds_num; i++) {
+ if (isnan(ce->values_gauge[i]))
continue;
else if (ce->values_gauge[i] < ds->ds[i].min)
ce->values_gauge[i] = NAN;
}
} /* void uc_check_range */
-static int uc_insert (const data_set_t *ds, const value_list_t *vl,
- const char *key)
-{
+static int uc_insert(const data_set_t *ds, const value_list_t *vl,
+ const char *key) {
char *key_copy;
cache_entry_t *ce;
/* `cache_lock' has been locked by `uc_update' */
- key_copy = strdup (key);
- if (key_copy == NULL)
- {
- ERROR ("uc_insert: strdup failed.");
- return (-1);
+ key_copy = strdup(key);
+ if (key_copy == NULL) {
+ ERROR("uc_insert: strdup failed.");
+ return -1;
}
- ce = cache_alloc (ds->ds_num);
- if (ce == NULL)
- {
- sfree (key_copy);
- ERROR ("uc_insert: cache_alloc (%zu) failed.", ds->ds_num);
- return (-1);
+ ce = cache_alloc(ds->ds_num);
+ if (ce == NULL) {
+ sfree(key_copy);
+ ERROR("uc_insert: cache_alloc (%zu) failed.", ds->ds_num);
+ return -1;
}
- sstrncpy (ce->name, key, sizeof (ce->name));
+ sstrncpy(ce->name, key, sizeof(ce->name));
- for (size_t i = 0; i < ds->ds_num; i++)
- {
- switch (ds->ds[i].type)
- {
- case DS_TYPE_COUNTER:
- ce->values_gauge[i] = NAN;
- ce->values_raw[i].counter = vl->values[i].counter;
- break;
-
- case DS_TYPE_GAUGE:
- ce->values_gauge[i] = vl->values[i].gauge;
- ce->values_raw[i].gauge = vl->values[i].gauge;
- break;
-
- case DS_TYPE_DERIVE:
- ce->values_gauge[i] = NAN;
- ce->values_raw[i].derive = vl->values[i].derive;
- break;
-
- case DS_TYPE_ABSOLUTE:
- ce->values_gauge[i] = NAN;
- if (vl->interval > 0)
- ce->values_gauge[i] = ((double) vl->values[i].absolute)
- / CDTIME_T_TO_DOUBLE (vl->interval);
- ce->values_raw[i].absolute = vl->values[i].absolute;
- break;
-
- default:
- /* This shouldn't happen. */
- ERROR ("uc_insert: Don't know how to handle data source type %i.",
- ds->ds[i].type);
- sfree (key_copy);
- cache_free (ce);
- return (-1);
+ for (size_t i = 0; i < ds->ds_num; i++) {
+ switch (ds->ds[i].type) {
+ case DS_TYPE_COUNTER:
+ ce->values_gauge[i] = NAN;
+ ce->values_raw[i].counter = vl->values[i].counter;
+ break;
+
+ case DS_TYPE_GAUGE:
+ ce->values_gauge[i] = vl->values[i].gauge;
+ ce->values_raw[i].gauge = vl->values[i].gauge;
+ break;
+
+ case DS_TYPE_DERIVE:
+ ce->values_gauge[i] = NAN;
+ ce->values_raw[i].derive = vl->values[i].derive;
+ break;
+
+ case DS_TYPE_ABSOLUTE:
+ ce->values_gauge[i] = NAN;
+ if (vl->interval > 0)
+ ce->values_gauge[i] =
+ ((double)vl->values[i].absolute) / CDTIME_T_TO_DOUBLE(vl->interval);
+ ce->values_raw[i].absolute = vl->values[i].absolute;
+ break;
+
+ default:
+ /* This shouldn't happen. */
+ ERROR("uc_insert: Don't know how to handle data source type %i.",
+ ds->ds[i].type);
+ sfree(key_copy);
+ cache_free(ce);
+ return -1;
} /* switch (ds->ds[i].type) */
- } /* for (i) */
+ } /* for (i) */
/* Prune invalid gauge data */
- uc_check_range (ds, ce);
+ uc_check_range(ds, ce);
ce->last_time = vl->time;
- ce->last_update = cdtime ();
+ ce->last_update = cdtime();
ce->interval = vl->interval;
ce->state = STATE_OKAY;
- if (c_avl_insert (cache_tree, key_copy, ce) != 0)
- {
- sfree (key_copy);
- ERROR ("uc_insert: c_avl_insert failed.");
- return (-1);
+ if (c_avl_insert(cache_tree, key_copy, ce) != 0) {
+ sfree(key_copy);
+ ERROR("uc_insert: c_avl_insert failed.");
+ return -1;
}
- DEBUG ("uc_insert: Added %s to the cache.", key);
- return (0);
+ DEBUG("uc_insert: Added %s to the cache.", key);
+ return 0;
} /* int uc_insert */
-int uc_init (void)
-{
+int uc_init(void) {
if (cache_tree == NULL)
- cache_tree = c_avl_create ((int (*) (const void *, const void *))
- cache_compare);
+ cache_tree =
+ c_avl_create((int (*)(const void *, const void *))cache_compare);
- return (0);
+ return 0;
} /* int uc_init */
-int uc_check_timeout (void)
-{
- cdtime_t now;
- cache_entry_t *ce;
-
- char **keys = NULL;
- cdtime_t *keys_time = NULL;
- cdtime_t *keys_interval = NULL;
- int keys_len = 0;
+int uc_check_timeout(void) {
+ struct {
+ char *key;
+ cdtime_t time;
+ cdtime_t interval;
+ } *expired = NULL;
+ size_t expired_num = 0;
- char *key;
- c_avl_iterator_t *iter;
-
- int status;
-
- pthread_mutex_lock (&cache_lock);
-
- now = cdtime ();
+ pthread_mutex_lock(&cache_lock);
+ cdtime_t now = cdtime();
/* Build a list of entries to be flushed */
- iter = c_avl_get_iterator (cache_tree);
- while (c_avl_iterator_next (iter, (void *) &key, (void *) &ce) == 0)
- {
- char **tmp;
- cdtime_t *tmp_time;
-
+ c_avl_iterator_t *iter = c_avl_get_iterator(cache_tree);
+ char *key = NULL;
+ cache_entry_t *ce = NULL;
+ while (c_avl_iterator_next(iter, (void *)&key, (void *)&ce) == 0) {
/* If the entry is fresh enough, continue. */
if ((now - ce->last_update) < (ce->interval * timeout_g))
continue;
- /* If entry has not been updated, add to `keys' array */
- tmp = realloc ((void *) keys,
- (keys_len + 1) * sizeof (char *));
- if (tmp == NULL)
- {
- ERROR ("uc_check_timeout: realloc failed.");
- continue;
- }
- keys = tmp;
-
- tmp_time = realloc (keys_time, (keys_len + 1) * sizeof (*keys_time));
- if (tmp_time == NULL)
- {
- ERROR ("uc_check_timeout: realloc failed.");
+ void *tmp = realloc(expired, (expired_num + 1) * sizeof(*expired));
+ if (tmp == NULL) {
+ ERROR("uc_check_timeout: realloc failed.");
continue;
}
- keys_time = tmp_time;
+ expired = tmp;
- tmp_time = realloc (keys_interval, (keys_len + 1) * sizeof (*keys_interval));
- if (tmp_time == NULL)
- {
- ERROR ("uc_check_timeout: realloc failed.");
- continue;
- }
- keys_interval = tmp_time;
+ expired[expired_num].key = strdup(key);
+ expired[expired_num].time = ce->last_time;
+ expired[expired_num].interval = ce->interval;
- keys[keys_len] = strdup (key);
- if (keys[keys_len] == NULL)
- {
- ERROR ("uc_check_timeout: strdup failed.");
+ if (expired[expired_num].key == NULL) {
+ ERROR("uc_check_timeout: strdup failed.");
continue;
}
- keys_time[keys_len] = ce->last_time;
- keys_interval[keys_len] = ce->interval;
- keys_len++;
+ expired_num++;
} /* while (c_avl_iterator_next) */
- c_avl_iterator_destroy (iter);
- pthread_mutex_unlock (&cache_lock);
+ c_avl_iterator_destroy(iter);
+ pthread_mutex_unlock(&cache_lock);
- if (keys_len == 0)
- {
- /* realloc() may have been called for these. */
- sfree (keys);
- sfree (keys_time);
- sfree (keys_interval);
- return (0);
+ if (expired_num == 0) {
+ sfree(expired);
+ return 0;
}
/* Call the "missing" callback for each value. Do this before removing the
* including plugin specific meta data, rates, history, …. This must be done
* without holding the lock, otherwise we will run into a deadlock if a
* plugin calls the cache interface. */
- for (int i = 0; i < keys_len; i++)
- {
- value_list_t vl = VALUE_LIST_INIT;
-
- vl.values = NULL;
- vl.values_len = 0;
- vl.meta = NULL;
-
- status = parse_identifier_vl (keys[i], &vl);
- if (status != 0)
- {
- ERROR ("uc_check_timeout: parse_identifier_vl (\"%s\") failed.", keys[i]);
+ for (size_t i = 0; i < expired_num; i++) {
+ value_list_t vl = {
+ .time = expired[i].time, .interval = expired[i].interval,
+ };
+
+ if (parse_identifier_vl(expired[i].key, &vl) != 0) {
+ ERROR("uc_check_timeout: parse_identifier_vl (\"%s\") failed.",
+ expired[i].key);
continue;
}
- vl.time = keys_time[i];
- vl.interval = keys_interval[i];
-
- plugin_dispatch_missing (&vl);
- } /* for (i = 0; i < keys_len; i++) */
+ plugin_dispatch_missing(&vl);
+ } /* for (i = 0; i < expired_num; i++) */
/* Now actually remove all the values from the cache. We don't re-evaluate
* the timestamp again, so in theory it is possible we remove a value after
* it is updated here. */
- pthread_mutex_lock (&cache_lock);
- for (int i = 0; i < keys_len; i++)
- {
- key = NULL;
- ce = NULL;
-
- status = c_avl_remove (cache_tree, keys[i],
- (void *) &key, (void *) &ce);
- if (status != 0)
- {
- ERROR ("uc_check_timeout: c_avl_remove (\"%s\") failed.", keys[i]);
- sfree (keys[i]);
+ pthread_mutex_lock(&cache_lock);
+ for (size_t i = 0; i < expired_num; i++) {
+ char *key = NULL;
+ cache_entry_t *value = NULL;
+
+ if (c_avl_remove(cache_tree, expired[i].key, (void *)&key,
+ (void *)&value) != 0) {
+ ERROR("uc_check_timeout: c_avl_remove (\"%s\") failed.", expired[i].key);
+ sfree(expired[i].key);
continue;
}
+ sfree(key);
+ cache_free(value);
- sfree (keys[i]);
- sfree (key);
- cache_free (ce);
- } /* for (i = 0; i < keys_len; i++) */
- pthread_mutex_unlock (&cache_lock);
+ sfree(expired[i].key);
+ } /* for (i = 0; i < expired_num; i++) */
+ pthread_mutex_unlock(&cache_lock);
- sfree (keys);
- sfree (keys_time);
- sfree (keys_interval);
-
- return (0);
+ sfree(expired);
+ return 0;
} /* int uc_check_timeout */
-int uc_update (const data_set_t *ds, const value_list_t *vl)
-{
+int uc_update(const data_set_t *ds, const value_list_t *vl) {
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int status;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("uc_update: FORMAT_VL failed.");
- return (-1);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("uc_update: FORMAT_VL failed.");
+ return -1;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- status = c_avl_get (cache_tree, name, (void *) &ce);
+ status = c_avl_get(cache_tree, name, (void *)&ce);
if (status != 0) /* entry does not yet exist */
{
- status = uc_insert (ds, vl, name);
- pthread_mutex_unlock (&cache_lock);
- return (status);
+ status = uc_insert(ds, vl, name);
+ pthread_mutex_unlock(&cache_lock);
+ return status;
}
- assert (ce != NULL);
- assert (ce->values_num == ds->ds_num);
+ assert(ce != NULL);
+ assert(ce->values_num == ds->ds_num);
- if (ce->last_time >= vl->time)
- {
- pthread_mutex_unlock (&cache_lock);
- NOTICE ("uc_update: Value too old: name = %s; value time = %.3f; "
- "last cache update = %.3f;",
- name,
- CDTIME_T_TO_DOUBLE (vl->time),
- CDTIME_T_TO_DOUBLE (ce->last_time));
- return (-1);
+ if (ce->last_time >= vl->time) {
+ pthread_mutex_unlock(&cache_lock);
+ NOTICE("uc_update: Value too old: name = %s; value time = %.3f; "
+ "last cache update = %.3f;",
+ name, CDTIME_T_TO_DOUBLE(vl->time),
+ CDTIME_T_TO_DOUBLE(ce->last_time));
+ return -1;
}
- for (size_t i = 0; i < ds->ds_num; i++)
- {
- switch (ds->ds[i].type)
- {
- case DS_TYPE_COUNTER:
- {
- counter_t diff = counter_diff (ce->values_raw[i].counter, vl->values[i].counter);
- ce->values_gauge[i] = ((double) diff)
- / (CDTIME_T_TO_DOUBLE (vl->time - ce->last_time));
- ce->values_raw[i].counter = vl->values[i].counter;
- }
- break;
-
- case DS_TYPE_GAUGE:
- ce->values_raw[i].gauge = vl->values[i].gauge;
- ce->values_gauge[i] = vl->values[i].gauge;
- break;
-
- case DS_TYPE_DERIVE:
- {
- derive_t diff = vl->values[i].derive - ce->values_raw[i].derive;
-
- ce->values_gauge[i] = ((double) diff)
- / (CDTIME_T_TO_DOUBLE (vl->time - ce->last_time));
- ce->values_raw[i].derive = vl->values[i].derive;
- }
- break;
-
- case DS_TYPE_ABSOLUTE:
- ce->values_gauge[i] = ((double) vl->values[i].absolute)
- / (CDTIME_T_TO_DOUBLE (vl->time - ce->last_time));
- ce->values_raw[i].absolute = vl->values[i].absolute;
- break;
-
- default:
- /* This shouldn't happen. */
- pthread_mutex_unlock (&cache_lock);
- ERROR ("uc_update: Don't know how to handle data source type %i.",
- ds->ds[i].type);
- return (-1);
+ for (size_t i = 0; i < ds->ds_num; i++) {
+ switch (ds->ds[i].type) {
+ case DS_TYPE_COUNTER: {
+ counter_t diff =
+ counter_diff(ce->values_raw[i].counter, vl->values[i].counter);
+ ce->values_gauge[i] =
+ ((double)diff) / (CDTIME_T_TO_DOUBLE(vl->time - ce->last_time));
+ ce->values_raw[i].counter = vl->values[i].counter;
+ } break;
+
+ case DS_TYPE_GAUGE:
+ ce->values_raw[i].gauge = vl->values[i].gauge;
+ ce->values_gauge[i] = vl->values[i].gauge;
+ break;
+
+ case DS_TYPE_DERIVE: {
+ derive_t diff = vl->values[i].derive - ce->values_raw[i].derive;
+
+ ce->values_gauge[i] =
+ ((double)diff) / (CDTIME_T_TO_DOUBLE(vl->time - ce->last_time));
+ ce->values_raw[i].derive = vl->values[i].derive;
+ } break;
+
+ case DS_TYPE_ABSOLUTE:
+ ce->values_gauge[i] = ((double)vl->values[i].absolute) /
+ (CDTIME_T_TO_DOUBLE(vl->time - ce->last_time));
+ ce->values_raw[i].absolute = vl->values[i].absolute;
+ break;
+
+ default:
+ /* This shouldn't happen. */
+ pthread_mutex_unlock(&cache_lock);
+ ERROR("uc_update: Don't know how to handle data source type %i.",
+ ds->ds[i].type);
+ return -1;
} /* switch (ds->ds[i].type) */
- DEBUG ("uc_update: %s: ds[%zu] = %lf", name, i, ce->values_gauge[i]);
+ DEBUG("uc_update: %s: ds[%zu] = %lf", name, i, ce->values_gauge[i]);
} /* for (i) */
/* Update the history if it exists. */
- if (ce->history != NULL)
- {
- assert (ce->history_index < ce->history_length);
- for (size_t i = 0; i < ce->values_num; i++)
- {
+ if (ce->history != NULL) {
+ assert(ce->history_index < ce->history_length);
+ for (size_t i = 0; i < ce->values_num; i++) {
size_t hist_idx = (ce->values_num * ce->history_index) + i;
ce->history[hist_idx] = ce->values_gauge[i];
}
- assert (ce->history_length > 0);
+ assert(ce->history_length > 0);
ce->history_index = (ce->history_index + 1) % ce->history_length;
}
/* Prune invalid gauge data */
- uc_check_range (ds, ce);
+ uc_check_range(ds, ce);
ce->last_time = vl->time;
- ce->last_update = cdtime ();
+ ce->last_update = cdtime();
ce->interval = vl->interval;
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (0);
+ return 0;
} /* int uc_update */
-int uc_get_rate_by_name (const char *name, gauge_t **ret_values, size_t *ret_values_num)
-{
+int uc_get_rate_by_name(const char *name, gauge_t **ret_values,
+ size_t *ret_values_num) {
gauge_t *ret = NULL;
size_t ret_num = 0;
cache_entry_t *ce = NULL;
int status = 0;
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
- {
- assert (ce != NULL);
+ if (c_avl_get(cache_tree, name, (void *)&ce) == 0) {
+ assert(ce != NULL);
/* remove missing values from getval */
- if (ce->state == STATE_MISSING)
- {
+ if (ce->state == STATE_MISSING) {
+ DEBUG("utils_cache: uc_get_rate_by_name: requested metric \"%s\" is in "
+ "state \"missing\".",
+ name);
status = -1;
- }
- else
- {
+ } else {
ret_num = ce->values_num;
- ret = malloc (ret_num * sizeof (*ret));
- if (ret == NULL)
- {
- ERROR ("utils_cache: uc_get_rate_by_name: malloc failed.");
+ ret = malloc(ret_num * sizeof(*ret));
+ if (ret == NULL) {
+ ERROR("utils_cache: uc_get_rate_by_name: malloc failed.");
status = -1;
+ } else {
+ memcpy(ret, ce->values_gauge, ret_num * sizeof(gauge_t));
}
- else
- {
- memcpy (ret, ce->values_gauge, ret_num * sizeof (gauge_t));
+ }
+ } else {
+ DEBUG("utils_cache: uc_get_rate_by_name: No such value: %s", name);
+ status = -1;
+ }
+
+ pthread_mutex_unlock(&cache_lock);
+
+ if (status == 0) {
+ *ret_values = ret;
+ *ret_values_num = ret_num;
+ }
+
+ return status;
+} /* gauge_t *uc_get_rate_by_name */
+
+gauge_t *uc_get_rate(const data_set_t *ds, const value_list_t *vl) {
+ char name[6 * DATA_MAX_NAME_LEN];
+ gauge_t *ret = NULL;
+ size_t ret_num = 0;
+ int status;
+
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("utils_cache: uc_get_rate: FORMAT_VL failed.");
+ return NULL;
+ }
+
+ status = uc_get_rate_by_name(name, &ret, &ret_num);
+ if (status != 0)
+ return NULL;
+
+ /* This is important - the caller has no other way of knowing how many
+ * values are returned. */
+ if (ret_num != ds->ds_num) {
+ ERROR("utils_cache: uc_get_rate: ds[%s] has %zu values, "
+ "but uc_get_rate_by_name returned %zu.",
+ ds->type, ds->ds_num, ret_num);
+ sfree(ret);
+ return NULL;
+ }
+
+ return ret;
+} /* gauge_t *uc_get_rate */
+
+int uc_get_value_by_name(const char *name, value_t **ret_values,
+ size_t *ret_values_num) {
+ value_t *ret = NULL;
+ size_t ret_num = 0;
+ cache_entry_t *ce = NULL;
+ int status = 0;
+
+ pthread_mutex_lock(&cache_lock);
+
+ if (c_avl_get(cache_tree, name, (void *) &ce) == 0) {
+ assert(ce != NULL);
+
+ /* remove missing values from getval */
+ if (ce->state == STATE_MISSING) {
+ status = -1;
+ } else {
+ ret_num = ce->values_num;
+ ret = malloc(ret_num * sizeof(*ret));
+ if (ret == NULL) {
+ ERROR("utils_cache: uc_get_value_by_name: malloc failed.");
+ status = -1;
+ } else {
+ memcpy(ret, ce->values_raw, ret_num * sizeof(value_t));
}
}
}
- else
- {
- DEBUG ("utils_cache: uc_get_rate_by_name: No such value: %s", name);
+ else {
+ DEBUG("utils_cache: uc_get_value_by_name: No such value: %s", name);
status = -1;
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- if (status == 0)
- {
+ if (status == 0) {
*ret_values = ret;
*ret_values_num = ret_num;
}
return (status);
-} /* gauge_t *uc_get_rate_by_name */
+} /* int uc_get_value_by_name */
-gauge_t *uc_get_rate (const data_set_t *ds, const value_list_t *vl)
-{
+value_t *uc_get_value(const data_set_t *ds, const value_list_t *vl) {
char name[6 * DATA_MAX_NAME_LEN];
- gauge_t *ret = NULL;
+ value_t *ret = NULL;
size_t ret_num = 0;
int status;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("utils_cache: uc_get_rate: FORMAT_VL failed.");
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("utils_cache: uc_get_value: FORMAT_VL failed.");
return (NULL);
}
- status = uc_get_rate_by_name (name, &ret, &ret_num);
+ status = uc_get_value_by_name(name, &ret, &ret_num);
if (status != 0)
return (NULL);
/* This is important - the caller has no other way of knowing how many
* values are returned. */
- if (ret_num != (size_t) ds->ds_num)
- {
- ERROR ("utils_cache: uc_get_rate: ds[%s] has %zu values, "
- "but uc_get_rate_by_name returned %zu.",
- ds->type, ds->ds_num, ret_num);
- sfree (ret);
+ if (ret_num != (size_t) ds->ds_num) {
+ ERROR("utils_cache: uc_get_value: ds[%s] has %zu values, "
+ "but uc_get_value_by_name returned %zu.", ds->type, ds->ds_num,
+ ret_num);
+ sfree(ret);
return (NULL);
}
return (ret);
-} /* gauge_t *uc_get_rate */
+} /* value_t *uc_get_value */
-size_t uc_get_size (void) {
+size_t uc_get_size(void) {
size_t size_arrays = 0;
- pthread_mutex_lock (&cache_lock);
- size_arrays = (size_t) c_avl_size (cache_tree);
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
+ size_arrays = (size_t)c_avl_size(cache_tree);
+ pthread_mutex_unlock(&cache_lock);
- return (size_arrays);
+ return size_arrays;
}
-int uc_get_names (char ***ret_names, cdtime_t **ret_times, size_t *ret_number)
-{
+int uc_get_names(char ***ret_names, cdtime_t **ret_times, size_t *ret_number) {
c_avl_iterator_t *iter;
char *key;
cache_entry_t *value;
int status = 0;
if ((ret_names == NULL) || (ret_number == NULL))
- return (-1);
+ return -1;
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- size_arrays = (size_t) c_avl_size (cache_tree);
- if (size_arrays < 1)
- {
+ size_arrays = (size_t)c_avl_size(cache_tree);
+ if (size_arrays < 1) {
/* Handle the "no values" case here, to avoid the error message when
* calloc() returns NULL. */
- pthread_mutex_unlock (&cache_lock);
- return (0);
+ pthread_mutex_unlock(&cache_lock);
+ return 0;
}
- names = calloc (size_arrays, sizeof (*names));
- times = calloc (size_arrays, sizeof (*times));
- if ((names == NULL) || (times == NULL))
- {
- ERROR ("uc_get_names: calloc failed.");
- sfree (names);
- sfree (times);
- pthread_mutex_unlock (&cache_lock);
- return (ENOMEM);
+ names = calloc(size_arrays, sizeof(*names));
+ times = calloc(size_arrays, sizeof(*times));
+ if ((names == NULL) || (times == NULL)) {
+ ERROR("uc_get_names: calloc failed.");
+ sfree(names);
+ sfree(times);
+ pthread_mutex_unlock(&cache_lock);
+ return ENOMEM;
}
- iter = c_avl_get_iterator (cache_tree);
- while (c_avl_iterator_next (iter, (void *) &key, (void *) &value) == 0)
- {
+ iter = c_avl_get_iterator(cache_tree);
+ while (c_avl_iterator_next(iter, (void *)&key, (void *)&value) == 0) {
/* remove missing values when list values */
if (value->state == STATE_MISSING)
continue;
/* c_avl_size does not return a number smaller than the number of elements
* returned by c_avl_iterator_next. */
- assert (number < size_arrays);
+ assert(number < size_arrays);
if (ret_times != NULL)
times[number] = value->last_time;
- names[number] = strdup (key);
- if (names[number] == NULL)
- {
+ names[number] = strdup(key);
+ if (names[number] == NULL) {
status = -1;
break;
}
number++;
} /* while (c_avl_iterator_next) */
- c_avl_iterator_destroy (iter);
- pthread_mutex_unlock (&cache_lock);
+ c_avl_iterator_destroy(iter);
+ pthread_mutex_unlock(&cache_lock);
- if (status != 0)
- {
- for (size_t i = 0; i < number; i++)
- {
- sfree (names[i]);
+ if (status != 0) {
+ for (size_t i = 0; i < number; i++) {
+ sfree(names[i]);
}
- sfree (names);
- sfree (times);
+ sfree(names);
+ sfree(times);
- return (-1);
+ return -1;
}
*ret_names = names;
if (ret_times != NULL)
*ret_times = times;
else
- sfree (times);
+ sfree(times);
*ret_number = number;
- return (0);
+ return 0;
} /* int uc_get_names */
-int uc_get_state (const data_set_t *ds, const value_list_t *vl)
-{
+int uc_get_state(const data_set_t *ds, const value_list_t *vl) {
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int ret = STATE_ERROR;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("uc_get_state: FORMAT_VL failed.");
- return (STATE_ERROR);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("uc_get_state: FORMAT_VL failed.");
+ return STATE_ERROR;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
- {
- assert (ce != NULL);
+ if (c_avl_get(cache_tree, name, (void *)&ce) == 0) {
+ assert(ce != NULL);
ret = ce->state;
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (ret);
+ return ret;
} /* int uc_get_state */
-int uc_set_state (const data_set_t *ds, const value_list_t *vl, int state)
-{
+int uc_set_state(const data_set_t *ds, const value_list_t *vl, int state) {
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int ret = -1;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("uc_set_state: FORMAT_VL failed.");
- return (STATE_ERROR);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("uc_set_state: FORMAT_VL failed.");
+ return STATE_ERROR;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
- {
- assert (ce != NULL);
+ if (c_avl_get(cache_tree, name, (void *)&ce) == 0) {
+ assert(ce != NULL);
ret = ce->state;
ce->state = state;
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (ret);
+ return ret;
} /* int uc_set_state */
-int uc_get_history_by_name (const char *name,
- gauge_t *ret_history, size_t num_steps, size_t num_ds)
-{
+int uc_get_history_by_name(const char *name, gauge_t *ret_history,
+ size_t num_steps, size_t num_ds) {
cache_entry_t *ce = NULL;
int status = 0;
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- status = c_avl_get (cache_tree, name, (void *) &ce);
- if (status != 0)
- {
- pthread_mutex_unlock (&cache_lock);
- return (-ENOENT);
+ status = c_avl_get(cache_tree, name, (void *)&ce);
+ if (status != 0) {
+ pthread_mutex_unlock(&cache_lock);
+ return -ENOENT;
}
- if (((size_t) ce->values_num) != num_ds)
- {
- pthread_mutex_unlock (&cache_lock);
- return (-EINVAL);
+ if (((size_t)ce->values_num) != num_ds) {
+ pthread_mutex_unlock(&cache_lock);
+ return -EINVAL;
}
/* Check if there are enough values available. If not, increase the buffer
* size. */
- if (ce->history_length < num_steps)
- {
+ if (ce->history_length < num_steps) {
gauge_t *tmp;
- tmp = realloc (ce->history, sizeof (*ce->history)
- * num_steps * ce->values_num);
- if (tmp == NULL)
- {
- pthread_mutex_unlock (&cache_lock);
- return (-ENOMEM);
+ tmp =
+ realloc(ce->history, sizeof(*ce->history) * num_steps * ce->values_num);
+ if (tmp == NULL) {
+ pthread_mutex_unlock(&cache_lock);
+ return -ENOMEM;
}
for (size_t i = ce->history_length * ce->values_num;
- i < (num_steps * ce->values_num);
- i++)
+ i < (num_steps * ce->values_num); i++)
tmp[i] = NAN;
ce->history = tmp;
} /* if (ce->history_length < num_steps) */
/* Copy the values to the output buffer. */
- for (size_t i = 0; i < num_steps; i++)
- {
+ for (size_t i = 0; i < num_steps; i++) {
size_t src_index;
size_t dst_index;
dst_index = i * num_ds;
- memcpy (ret_history + dst_index, ce->history + src_index,
- sizeof (*ret_history) * num_ds);
+ memcpy(ret_history + dst_index, ce->history + src_index,
+ sizeof(*ret_history) * num_ds);
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (0);
+ return 0;
} /* int uc_get_history_by_name */
-int uc_get_history (const data_set_t *ds, const value_list_t *vl,
- gauge_t *ret_history, size_t num_steps, size_t num_ds)
-{
+int uc_get_history(const data_set_t *ds, const value_list_t *vl,
+ gauge_t *ret_history, size_t num_steps, size_t num_ds) {
char name[6 * DATA_MAX_NAME_LEN];
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("utils_cache: uc_get_history: FORMAT_VL failed.");
- return (-1);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("utils_cache: uc_get_history: FORMAT_VL failed.");
+ return -1;
}
- return (uc_get_history_by_name (name, ret_history, num_steps, num_ds));
+ return uc_get_history_by_name(name, ret_history, num_steps, num_ds);
} /* int uc_get_history */
-int uc_get_hits (const data_set_t *ds, const value_list_t *vl)
-{
+int uc_get_hits(const data_set_t *ds, const value_list_t *vl) {
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int ret = STATE_ERROR;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("uc_get_hits: FORMAT_VL failed.");
- return (STATE_ERROR);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("uc_get_hits: FORMAT_VL failed.");
+ return STATE_ERROR;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
- {
- assert (ce != NULL);
+ if (c_avl_get(cache_tree, name, (void *)&ce) == 0) {
+ assert(ce != NULL);
ret = ce->hits;
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (ret);
+ return ret;
} /* int uc_get_hits */
-int uc_set_hits (const data_set_t *ds, const value_list_t *vl, int hits)
-{
+int uc_set_hits(const data_set_t *ds, const value_list_t *vl, int hits) {
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int ret = -1;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("uc_set_hits: FORMAT_VL failed.");
- return (STATE_ERROR);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("uc_set_hits: FORMAT_VL failed.");
+ return STATE_ERROR;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
- {
- assert (ce != NULL);
+ if (c_avl_get(cache_tree, name, (void *)&ce) == 0) {
+ assert(ce != NULL);
ret = ce->hits;
ce->hits = hits;
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (ret);
+ return ret;
} /* int uc_set_hits */
-int uc_inc_hits (const data_set_t *ds, const value_list_t *vl, int step)
-{
+int uc_inc_hits(const data_set_t *ds, const value_list_t *vl, int step) {
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int ret = -1;
- if (FORMAT_VL (name, sizeof (name), vl) != 0)
- {
- ERROR ("uc_inc_hits: FORMAT_VL failed.");
- return (STATE_ERROR);
+ if (FORMAT_VL(name, sizeof(name), vl) != 0) {
+ ERROR("uc_inc_hits: FORMAT_VL failed.");
+ return STATE_ERROR;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- if (c_avl_get (cache_tree, name, (void *) &ce) == 0)
- {
- assert (ce != NULL);
+ if (c_avl_get(cache_tree, name, (void *)&ce) == 0) {
+ assert(ce != NULL);
ret = ce->hits;
ce->hits = ret + step;
}
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (ret);
+ return ret;
} /* int uc_inc_hits */
/*
* Iterator interface
*/
-uc_iter_t *uc_get_iterator (void)
-{
+uc_iter_t *uc_get_iterator(void) {
uc_iter_t *iter;
- iter = (uc_iter_t *) calloc(1, sizeof (*iter));
+ iter = (uc_iter_t *)calloc(1, sizeof(*iter));
if (iter == NULL)
- return (NULL);
+ return NULL;
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- iter->iter = c_avl_get_iterator (cache_tree);
- if (iter->iter == NULL)
- {
- free (iter);
- return (NULL);
+ iter->iter = c_avl_get_iterator(cache_tree);
+ if (iter->iter == NULL) {
+ free(iter);
+ return NULL;
}
- return (iter);
+ return iter;
} /* uc_iter_t *uc_get_iterator */
-int uc_iterator_next (uc_iter_t *iter, char **ret_name)
-{
+int uc_iterator_next(uc_iter_t *iter, char **ret_name) {
int status;
if (iter == NULL)
- return (-1);
+ return -1;
- while ((status = c_avl_iterator_next (iter->iter,
- (void *) &iter->name, (void *) &iter->entry)) == 0)
- {
+ while ((status = c_avl_iterator_next(iter->iter, (void *)&iter->name,
+ (void *)&iter->entry)) == 0) {
if (iter->entry->state == STATE_MISSING)
continue;
if (status != 0) {
iter->name = NULL;
iter->entry = NULL;
- return (-1);
+ return -1;
}
if (ret_name != NULL)
*ret_name = iter->name;
- return (0);
+ return 0;
} /* int uc_iterator_next */
-void uc_iterator_destroy (uc_iter_t *iter)
-{
+void uc_iterator_destroy(uc_iter_t *iter) {
if (iter == NULL)
return;
- c_avl_iterator_destroy (iter->iter);
- pthread_mutex_unlock (&cache_lock);
+ c_avl_iterator_destroy(iter->iter);
+ pthread_mutex_unlock(&cache_lock);
- free (iter);
+ free(iter);
} /* void uc_iterator_destroy */
-int uc_iterator_get_time (uc_iter_t *iter, cdtime_t *ret_time)
-{
+int uc_iterator_get_time(uc_iter_t *iter, cdtime_t *ret_time) {
if ((iter == NULL) || (iter->entry == NULL) || (ret_time == NULL))
- return (-1);
+ return -1;
*ret_time = iter->entry->last_time;
- return (0);
+ return 0;
} /* int uc_iterator_get_name */
-int uc_iterator_get_values (uc_iter_t *iter, value_t **ret_values, size_t *ret_num)
-{
- if ((iter == NULL) || (iter->entry == NULL)
- || (ret_values == NULL) || (ret_num == NULL))
- return (-1);
+int uc_iterator_get_values(uc_iter_t *iter, value_t **ret_values,
+ size_t *ret_num) {
+ if ((iter == NULL) || (iter->entry == NULL) || (ret_values == NULL) ||
+ (ret_num == NULL))
+ return -1;
- *ret_values = calloc (iter->entry->values_num, sizeof(*iter->entry->values_raw));
+ *ret_values =
+ calloc(iter->entry->values_num, sizeof(*iter->entry->values_raw));
if (*ret_values == NULL)
- return (-1);
+ return -1;
for (size_t i = 0; i < iter->entry->values_num; ++i)
*ret_values[i] = iter->entry->values_raw[i];
*ret_num = iter->entry->values_num;
- return (0);
+ return 0;
} /* int uc_iterator_get_values */
-int uc_iterator_get_interval (uc_iter_t *iter, cdtime_t *ret_interval)
-{
+int uc_iterator_get_interval(uc_iter_t *iter, cdtime_t *ret_interval) {
if ((iter == NULL) || (iter->entry == NULL) || (ret_interval == NULL))
- return (-1);
+ return -1;
*ret_interval = iter->entry->interval;
- return (0);
+ return 0;
} /* int uc_iterator_get_name */
+int uc_iterator_get_meta(uc_iter_t *iter, meta_data_t **ret_meta) {
+ if ((iter == NULL) || (iter->entry == NULL) || (ret_meta == NULL))
+ return -1;
+
+ *ret_meta = meta_data_clone(iter->entry->meta);
+
+ return 0;
+} /* int uc_iterator_get_meta */
+
/*
* Meta data interface
*/
/* XXX: This function will acquire `cache_lock' but will not free it! */
-static meta_data_t *uc_get_meta (const value_list_t *vl) /* {{{ */
+static meta_data_t *uc_get_meta(const value_list_t *vl) /* {{{ */
{
char name[6 * DATA_MAX_NAME_LEN];
cache_entry_t *ce = NULL;
int status;
- status = FORMAT_VL (name, sizeof (name), vl);
- if (status != 0)
- {
- ERROR ("utils_cache: uc_get_meta: FORMAT_VL failed.");
- return (NULL);
+ status = FORMAT_VL(name, sizeof(name), vl);
+ if (status != 0) {
+ ERROR("utils_cache: uc_get_meta: FORMAT_VL failed.");
+ return NULL;
}
- pthread_mutex_lock (&cache_lock);
+ pthread_mutex_lock(&cache_lock);
- status = c_avl_get (cache_tree, name, (void *) &ce);
- if (status != 0)
- {
- pthread_mutex_unlock (&cache_lock);
- return (NULL);
+ status = c_avl_get(cache_tree, name, (void *)&ce);
+ if (status != 0) {
+ pthread_mutex_unlock(&cache_lock);
+ return NULL;
}
- assert (ce != NULL);
+ assert(ce != NULL);
if (ce->meta == NULL)
- ce->meta = meta_data_create ();
+ ce->meta = meta_data_create();
if (ce->meta == NULL)
- pthread_mutex_unlock (&cache_lock);
+ pthread_mutex_unlock(&cache_lock);
- return (ce->meta);
+ return ce->meta;
} /* }}} meta_data_t *uc_get_meta */
/* Sorry about this preprocessor magic, but it really makes this file much
* shorter.. */
-#define UC_WRAP(wrap_function) { \
- meta_data_t *meta; \
- int status; \
- meta = uc_get_meta (vl); \
- if (meta == NULL) return (-1); \
- status = wrap_function (meta, key); \
- pthread_mutex_unlock (&cache_lock); \
- return (status); \
-}
-int uc_meta_data_exists (const value_list_t *vl, const char *key)
- UC_WRAP (meta_data_exists)
-
-int uc_meta_data_delete (const value_list_t *vl, const char *key)
- UC_WRAP (meta_data_delete)
+#define UC_WRAP(wrap_function) \
+ { \
+ meta_data_t *meta; \
+ int status; \
+ meta = uc_get_meta(vl); \
+ if (meta == NULL) \
+ return -1; \
+ status = wrap_function(meta, key); \
+ pthread_mutex_unlock(&cache_lock); \
+ return status; \
+ }
+int uc_meta_data_exists(const value_list_t *vl,
+ const char *key) UC_WRAP(meta_data_exists)
+
+ int uc_meta_data_delete(const value_list_t *vl,
+ const char *key) UC_WRAP(meta_data_delete)
#undef UC_WRAP
/* We need a new version of this macro because the following functions take
* two argumetns. */
-#define UC_WRAP(wrap_function) { \
- meta_data_t *meta; \
- int status; \
- meta = uc_get_meta (vl); \
- if (meta == NULL) return (-1); \
- status = wrap_function (meta, key, value); \
- pthread_mutex_unlock (&cache_lock); \
- return (status); \
-}
-int uc_meta_data_add_string (const value_list_t *vl,
- const char *key,
- const char *value)
- UC_WRAP(meta_data_add_string)
-int uc_meta_data_add_signed_int (const value_list_t *vl,
- const char *key,
- int64_t value)
- UC_WRAP(meta_data_add_signed_int)
-int uc_meta_data_add_unsigned_int (const value_list_t *vl,
- const char *key,
- uint64_t value)
- UC_WRAP(meta_data_add_unsigned_int)
-int uc_meta_data_add_double (const value_list_t *vl,
- const char *key,
- double value)
- UC_WRAP(meta_data_add_double)
-int uc_meta_data_add_boolean (const value_list_t *vl,
- const char *key,
- _Bool value)
- UC_WRAP(meta_data_add_boolean)
-
-int uc_meta_data_get_string (const value_list_t *vl,
- const char *key,
- char **value)
- UC_WRAP(meta_data_get_string)
-int uc_meta_data_get_signed_int (const value_list_t *vl,
- const char *key,
- int64_t *value)
- UC_WRAP(meta_data_get_signed_int)
-int uc_meta_data_get_unsigned_int (const value_list_t *vl,
- const char *key,
- uint64_t *value)
- UC_WRAP(meta_data_get_unsigned_int)
-int uc_meta_data_get_double (const value_list_t *vl,
- const char *key,
- double *value)
- UC_WRAP(meta_data_get_double)
-int uc_meta_data_get_boolean (const value_list_t *vl,
- const char *key,
- _Bool *value)
- UC_WRAP(meta_data_get_boolean)
+#define UC_WRAP(wrap_function) \
+ { \
+ meta_data_t *meta; \
+ int status; \
+ meta = uc_get_meta(vl); \
+ if (meta == NULL) \
+ return -1; \
+ status = wrap_function(meta, key, value); \
+ pthread_mutex_unlock(&cache_lock); \
+ return status; \
+ }
+ int uc_meta_data_add_string(const value_list_t *vl, const char *key,
+ const char *value)
+ UC_WRAP(meta_data_add_string) int uc_meta_data_add_signed_int(
+ const value_list_t *vl, const char *key, int64_t value)
+ UC_WRAP(meta_data_add_signed_int) int uc_meta_data_add_unsigned_int(
+ const value_list_t *vl, const char *key, uint64_t value)
+ UC_WRAP(meta_data_add_unsigned_int) int uc_meta_data_add_double(
+ const value_list_t *vl, const char *key, double value)
+ UC_WRAP(meta_data_add_double) int uc_meta_data_add_boolean(
+ const value_list_t *vl, const char *key,
+ _Bool value) UC_WRAP(meta_data_add_boolean)
+
+ int uc_meta_data_get_string(const value_list_t *vl,
+ const char *key,
+ char **value)
+ UC_WRAP(meta_data_get_string) int uc_meta_data_get_signed_int(
+ const value_list_t *vl, const char *key,
+ int64_t *value)
+ UC_WRAP(meta_data_get_signed_int) int uc_meta_data_get_unsigned_int(
+ const value_list_t *vl, const char *key,
+ uint64_t *value)
+ UC_WRAP(meta_data_get_unsigned_int) int uc_meta_data_get_double(
+ const value_list_t *vl,
+ const char *key, double *value)
+ UC_WRAP(meta_data_get_double) int uc_meta_data_get_boolean(
+ const value_list_t *vl,
+ const char *key, _Bool *value)
+ UC_WRAP(meta_data_get_boolean)
#undef UC_WRAP
-
-/* vim: set sw=2 ts=8 sts=2 tw=78 : */
projects / collectd.git / blobdiff