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diff --git a/src/core/store.c b/src/core/store.c
index 47ba0356933453d4aa0c061daf23a6d3ad4a727c..44e696cccf6549ec49707022d30c58a4f387da64 100644 (file)
--- a/src/core/store.c
+++ b/src/core/store.c
#include "sysdb.h"
#include "core/store-private.h"
#include "core/plugin.h"
+#include "utils/avltree.h"
#include "utils/error.h"
-#include "utils/llist.h"
#include <assert.h>
* private variables
*/
-static sdb_llist_t *obj_list = NULL;
-static pthread_rwlock_t obj_lock = PTHREAD_RWLOCK_INITIALIZER;
+static sdb_avltree_t *hosts = NULL;
+static pthread_rwlock_t host_lock = PTHREAD_RWLOCK_INITIALIZER;
/*
* private types
*/
-static sdb_type_t sdb_store_obj_type;
+static sdb_type_t sdb_host_type;
+static sdb_type_t sdb_service_type;
+static sdb_type_t sdb_metric_type;
static sdb_type_t sdb_attribute_type;
static int
-store_base_init(sdb_object_t *obj, va_list ap)
+store_obj_init(sdb_object_t *obj, va_list ap)
{
- sdb_store_base_t *sobj = STORE_BASE(obj);
+ sdb_store_obj_t *sobj = STORE_OBJ(obj);
sobj->type = va_arg(ap, int);
sobj->last_update = va_arg(ap, sdb_time_t);
+ sobj->interval = 0;
+ sobj->backends = NULL;
+ sobj->backends_num = 0;
sobj->parent = NULL;
return 0;
-} /* store_base_init */
+} /* store_obj_init */
static void
-store_base_destroy(sdb_object_t *obj)
+store_obj_destroy(sdb_object_t *obj)
{
- const sdb_store_base_t *sobj = STORE_CONST_BASE(obj);
+ sdb_store_obj_t *sobj = STORE_OBJ(obj);
+ size_t i;
+
+ for (i = 0; i < sobj->backends_num; ++i)
+ free(sobj->backends[i]);
+ free(sobj->backends);
+ sobj->backends = NULL;
+ sobj->backends_num = 0;
if (sobj->parent)
sdb_object_deref(SDB_OBJ(sobj->parent));
-} /* store_base_destroy */
+} /* store_obj_destroy */
static int
-sdb_store_obj_init(sdb_object_t *obj, va_list ap)
+sdb_host_init(sdb_object_t *obj, va_list ap)
{
- sdb_store_obj_t *sobj = SDB_STORE_OBJ(obj);
+ sdb_host_t *sobj = HOST(obj);
int ret;
/* this will consume the first argument (type) of ap */
- ret = store_base_init(obj, ap);
+ ret = store_obj_init(obj, ap);
if (ret)
return ret;
- sobj->children = sdb_llist_create();
- if (! sobj->children)
+ sobj->services = sdb_avltree_create();
+ if (! sobj->services)
+ return -1;
+ sobj->metrics = sdb_avltree_create();
+ if (! sobj->metrics)
return -1;
- sobj->attributes = sdb_llist_create();
+ sobj->attributes = sdb_avltree_create();
if (! sobj->attributes)
return -1;
return 0;
-} /* sdb_store_obj_init */
+} /* sdb_host_init */
static void
-sdb_store_obj_destroy(sdb_object_t *obj)
+sdb_host_destroy(sdb_object_t *obj)
+{
+ sdb_host_t *sobj = HOST(obj);
+ assert(obj);
+
+ store_obj_destroy(obj);
+
+ if (sobj->services)
+ sdb_avltree_destroy(sobj->services);
+ if (sobj->metrics)
+ sdb_avltree_destroy(sobj->metrics);
+ if (sobj->attributes)
+ sdb_avltree_destroy(sobj->attributes);
+} /* sdb_host_destroy */
+
+static int
+sdb_service_init(sdb_object_t *obj, va_list ap)
{
- sdb_store_obj_t *sobj = SDB_STORE_OBJ(obj);
+ sdb_service_t *sobj = SVC(obj);
+ int ret;
+
+ /* this will consume the first argument (type) of ap */
+ ret = store_obj_init(obj, ap);
+ if (ret)
+ return ret;
+ sobj->attributes = sdb_avltree_create();
+ if (! sobj->attributes)
+ return -1;
+ return 0;
+} /* sdb_service_init */
+
+static void
+sdb_service_destroy(sdb_object_t *obj)
+{
+ sdb_service_t *sobj = SVC(obj);
assert(obj);
- store_base_destroy(obj);
+ store_obj_destroy(obj);
- if (sobj->children)
- sdb_llist_destroy(sobj->children);
if (sobj->attributes)
- sdb_llist_destroy(sobj->attributes);
-} /* sdb_store_obj_destroy */
+ sdb_avltree_destroy(sobj->attributes);
+} /* sdb_service_destroy */
+
+static int
+sdb_metric_init(sdb_object_t *obj, va_list ap)
+{
+ sdb_metric_t *sobj = METRIC(obj);
+ int ret;
+
+ /* this will consume the first argument (type) of ap */
+ ret = store_obj_init(obj, ap);
+ if (ret)
+ return ret;
+
+ sobj->attributes = sdb_avltree_create();
+ if (! sobj->attributes)
+ return -1;
+ return 0;
+} /* sdb_metric_init */
+
+static void
+sdb_metric_destroy(sdb_object_t *obj)
+{
+ sdb_metric_t *sobj = METRIC(obj);
+ assert(obj);
+
+ store_obj_destroy(obj);
+
+ if (sobj->attributes)
+ sdb_avltree_destroy(sobj->attributes);
+} /* sdb_metric_destroy */
static int
sdb_attr_init(sdb_object_t *obj, va_list ap)
/* this will consume the first two arguments
* (type and last_update) of ap */
- ret = store_base_init(obj, ap);
+ ret = store_obj_init(obj, ap);
if (ret)
return ret;
value = va_arg(ap, const sdb_data_t *);
if (value)
- if (sdb_data_copy(&SDB_ATTR(obj)->value, value))
+ if (sdb_data_copy(&ATTR(obj)->value, value))
return -1;
return 0;
} /* sdb_attr_init */
{
assert(obj);
- store_base_destroy(obj);
- sdb_data_free_datum(&SDB_ATTR(obj)->value);
+ store_obj_destroy(obj);
+ sdb_data_free_datum(&ATTR(obj)->value);
} /* sdb_attr_destroy */
-static sdb_type_t sdb_store_obj_type = {
- sizeof(sdb_store_obj_t),
+static sdb_type_t sdb_host_type = {
+ sizeof(sdb_host_t),
+ sdb_host_init,
+ sdb_host_destroy
+};
+
+static sdb_type_t sdb_service_type = {
+ sizeof(sdb_service_t),
+ sdb_service_init,
+ sdb_service_destroy
+};
- sdb_store_obj_init,
- sdb_store_obj_destroy
+static sdb_type_t sdb_metric_type = {
+ sizeof(sdb_metric_t),
+ sdb_metric_init,
+ sdb_metric_destroy
};
static sdb_type_t sdb_attribute_type = {
sizeof(sdb_attribute_t),
-
sdb_attr_init,
sdb_attr_destroy
};
* private helper functions
*/
-static sdb_store_obj_t *
-store_lookup_in_list(sdb_llist_t *l, int type, const char *name)
+static sdb_host_t *
+lookup_host(const char *name)
{
- sdb_llist_iter_t *iter;
+ return HOST(sdb_avltree_lookup(hosts, name));
+} /* lookup_host */
- if (! l)
- return NULL;
-
- iter = sdb_llist_get_iter(l);
- if (! iter)
- return NULL;
+static int
+record_backend(sdb_store_obj_t *obj)
+{
+ const sdb_plugin_info_t *info;
+ char **tmp;
+ size_t i;
- while (sdb_llist_iter_has_next(iter)) {
- sdb_store_obj_t *sobj = SDB_STORE_OBJ(sdb_llist_iter_get_next(iter));
- assert(sobj);
+ info = sdb_plugin_current();
+ if (! info)
+ return 0;
- if ((STORE_BASE(sobj)->type == type)
- && (! strcasecmp(SDB_OBJ(sobj)->name, name))) {
- sdb_llist_iter_destroy(iter);
- return sobj;
- }
+ for (i = 0; i < obj->backends_num; ++i)
+ if (!strcasecmp(obj->backends[i], info->plugin_name))
+ return 0;
- /* don't lookups non-host types from hierarchical hosts */
- if ((type != SDB_HOST) && (STORE_BASE(sobj)->type == SDB_HOST))
- continue;
+ tmp = realloc(obj->backends,
+ (obj->backends_num + 1) * sizeof(*obj->backends));
+ if (! tmp)
+ return -1;
- sobj = store_lookup_in_list(sobj->children, type, name);
- if (sobj) {
- sdb_llist_iter_destroy(iter);
- return sobj;
- }
- }
- sdb_llist_iter_destroy(iter);
- return NULL;
-} /* store_lookup_in_list */
+ obj->backends = tmp;
+ obj->backends[obj->backends_num] = strdup(info->plugin_name);
+ if (! obj->backends[obj->backends_num])
+ return -1;
-static sdb_store_obj_t *
-store_lookup(int type, const char *name)
-{
- return store_lookup_in_list(obj_list, type, name);
-} /* store_lookup */
+ ++obj->backends_num;
+ return 0;
+} /* record_backend */
-/* The obj_lock has to be acquired before calling this function. */
static int
-store_obj(int parent_type, const char *parent_name,
- int type, const char *name, sdb_time_t last_update,
- sdb_store_base_t **updated_obj)
+store_obj(sdb_avltree_t *parent_tree, int type, const char *name,
+ sdb_time_t last_update, sdb_store_obj_t **updated_obj)
{
- char *parent_cname = NULL, *cname = NULL;
-
- sdb_llist_t *parent_list;
- sdb_store_base_t *old;
+ sdb_store_obj_t *old, *new;
int status = 0;
+ assert(parent_tree);
+
if (last_update <= 0)
last_update = sdb_gettime();
- assert((parent_type == 0)
- || (parent_type == SDB_HOST)
- || (parent_type == SDB_SERVICE));
- assert((type == 0)
- || (type == SDB_HOST)
- || (type == SDB_SERVICE)
- || (type == SDB_ATTRIBUTE));
-
- if (parent_type == SDB_HOST) {
- parent_cname = sdb_plugin_cname(strdup(parent_name));
- if (! parent_cname) {
- sdb_log(SDB_LOG_ERR, "store: strdup failed");
- return -1;
- }
- parent_name = parent_cname;
- }
- if (type == SDB_HOST) {
- cname = sdb_plugin_cname(strdup(name));
- if (! cname) {
- sdb_log(SDB_LOG_ERR, "store: strdup failed");
- return -1;
- }
- name = cname;
- }
-
- if (! obj_list) {
- if (! (obj_list = sdb_llist_create())) {
- free(parent_cname);
- free(cname);
- return -1;
- }
- }
- parent_list = obj_list;
-
- if (parent_type && parent_name) {
- sdb_store_obj_t *parent;
-
- parent = store_lookup(parent_type, parent_name);
- if (! parent) {
- sdb_log(SDB_LOG_ERR, "store: Failed to store %s '%s' - "
- "parent %s '%s' not found", TYPE_TO_NAME(type), name,
- TYPE_TO_NAME(parent_type), parent_name);
- free(parent_cname);
- free(cname);
- return -1;
- }
-
- if (type == SDB_ATTRIBUTE)
- parent_list = parent->attributes;
- else
- parent_list = parent->children;
- }
-
- if (type == SDB_HOST)
- /* make sure that each host is unique */
- old = STORE_BASE(store_lookup_in_list(obj_list, type, name));
- else if (type == SDB_ATTRIBUTE)
- /* look into attributes of this host */
- old = STORE_BASE(sdb_llist_search_by_name(parent_list, name));
- else
- /* look into services assigned to this host (store_lookup_in_list
- * does not look up services from hierarchical hosts) */
- old = STORE_BASE(store_lookup_in_list(parent_list, type, name));
-
+ old = STORE_OBJ(sdb_avltree_lookup(parent_tree, name));
if (old) {
if (old->last_update > last_update) {
sdb_log(SDB_LOG_DEBUG, "store: Cannot update %s '%s' - "
- "value too old (%"PRIscTIME" < %"PRIscTIME")",
- TYPE_TO_NAME(type), name, last_update, old->last_update);
+ "value too old (%"PRIsdbTIME" < %"PRIsdbTIME")",
+ SDB_STORE_TYPE_TO_NAME(type), name,
+ last_update, old->last_update);
/* don't report an error; the object may be updated by multiple
* backends */
status = 1;
}
+ else if (old->last_update == last_update) {
+ /* don't report an error and also don't even log this to avoid
+ * excessive noise on high sampling frequencies */
+ status = 1;
+ }
else {
+ sdb_time_t interval = last_update - old->last_update;
old->last_update = last_update;
+ if (interval) {
+ if (old->interval)
+ old->interval = (sdb_time_t)((0.9 * (double)old->interval)
+ + (0.1 * (double)interval));
+ else
+ old->interval = interval;
+ }
}
- if (updated_obj)
- *updated_obj = old;
+ new = old;
+ sdb_object_deref(SDB_OBJ(old));
}
else {
- sdb_store_base_t *new;
-
- if (type == SDB_ATTRIBUTE)
+ if (type == SDB_ATTRIBUTE) {
/* the value will be updated by the caller */
- new = STORE_BASE(sdb_object_create(name, sdb_attribute_type,
+ new = STORE_OBJ(sdb_object_create(name, sdb_attribute_type,
type, last_update, NULL));
- else
- new = STORE_BASE(sdb_object_create(name, sdb_store_obj_type,
- type, last_update));
+ }
+ else {
+ sdb_type_t t;
+ t = type == SDB_HOST
+ ? sdb_host_type
+ : type == SDB_SERVICE
+ ? sdb_service_type
+ : sdb_metric_type;
+ new = STORE_OBJ(sdb_object_create(name, t, type, last_update));
+ }
+
+ if (new) {
+ status = sdb_avltree_insert(parent_tree, SDB_OBJ(new));
- if (! new) {
+ /* pass control to the tree or destroy in case of an error */
+ sdb_object_deref(SDB_OBJ(new));
+ }
+ else {
char errbuf[1024];
sdb_log(SDB_LOG_ERR, "store: Failed to create %s '%s': %s",
- TYPE_TO_NAME(type), name,
+ SDB_STORE_TYPE_TO_NAME(type), name,
sdb_strerror(errno, errbuf, sizeof(errbuf)));
- free(parent_cname);
- free(cname);
- return -1;
+ status = -1;
}
+ }
- /* TODO: insert type-aware; the current version works as long as we
- * don't support to store hierarchical data */
- status = sdb_llist_insert_sorted(parent_list, SDB_OBJ(new),
- sdb_object_cmp_by_name);
+ if (status < 0)
+ return status;
+ assert(new);
- /* pass control to the list or destroy in case of an error */
- sdb_object_deref(SDB_OBJ(new));
+ if (updated_obj)
+ *updated_obj = new;
- if (updated_obj)
- *updated_obj = new;
- }
- free(parent_cname);
- free(cname);
+ if (record_backend(new))
+ return -1;
return status;
} /* store_obj */
+static int
+store_attr(sdb_avltree_t *attributes, const char *key, const sdb_data_t *value,
+ sdb_time_t last_update)
+{
+ sdb_store_obj_t *attr = NULL;
+ int status;
+
+ status = store_obj(attributes, SDB_ATTRIBUTE, key, last_update, &attr);
+ if (status)
+ return status;
+
+ /* don't update unchanged values */
+ if (! sdb_data_cmp(&ATTR(attr)->value, value))
+ return status;
+
+ assert(attr);
+ if (sdb_data_copy(&ATTR(attr)->value, value))
+ return -1;
+ return status;
+} /* store_attr */
+
+/* The host_lock has to be acquired before calling this function. */
+static sdb_avltree_t *
+get_host_children(const char *hostname, int type)
+{
+ char *cname = NULL;
+ sdb_host_t *host;
+
+ assert(hostname);
+ assert((type == SDB_SERVICE) || (type == SDB_METRIC)
+ || (type == SDB_ATTRIBUTE));
+
+ if (! hosts)
+ return NULL;
+
+ cname = sdb_plugin_cname(strdup(hostname));
+ if (! cname) {
+ sdb_log(SDB_LOG_ERR, "store: strdup failed");
+ return NULL;
+ }
+
+ host = lookup_host(cname);
+ free(cname);
+ if (! host)
+ return NULL;
+
+ sdb_object_deref(SDB_OBJ(host));
+ if (type == SDB_ATTRIBUTE)
+ return host->attributes;
+ else if (type == SDB_METRIC)
+ return host->metrics;
+ else
+ return host->services;
+} /* get_host_children */
+
/*
- * store_obj_tojson serializes attribute / service objects to JSON.
+ * store_common_tojson serializes common object attributes to JSON.
*
* The function never returns an error. Rather, an error message will be part
* of the serialized data.
*/
static void
-store_obj_tojson(sdb_llist_t *list, int type, sdb_strbuf_t *buf)
+store_common_tojson(sdb_store_obj_t *obj, sdb_strbuf_t *buf)
{
- sdb_llist_iter_t *iter;
char time_str[64];
+ char interval_str[64];
+ size_t i;
+
+ if (! sdb_strftime(time_str, sizeof(time_str),
+ "%F %T %z", obj->last_update))
+ snprintf(time_str, sizeof(time_str), "<error>");
+ time_str[sizeof(time_str) - 1] = '\0';
- assert((type == SDB_ATTRIBUTE) || (type == SDB_SERVICE));
+ if (! sdb_strfinterval(interval_str, sizeof(interval_str),
+ obj->interval))
+ snprintf(interval_str, sizeof(interval_str), "<error>");
+ interval_str[sizeof(interval_str) - 1] = '\0';
- sdb_strbuf_append(buf, "[");
+ sdb_strbuf_append(buf, "\"last_update\": \"%s\", "
+ "\"update_interval\": \"%s\", \"backends\": [",
+ time_str, interval_str);
+
+ for (i = 0; i < obj->backends_num; ++i) {
+ sdb_strbuf_append(buf, "\"%s\"", obj->backends[i]);
+ if (i < obj->backends_num - 1)
+ sdb_strbuf_append(buf, ",");
+ }
+ sdb_strbuf_append(buf, "]");
+} /* store_common_tojson */
+
+/*
+ * store_obj_tojson serializes attribute / metric / service objects to JSON.
+ *
+ * The function never returns an error. Rather, an error message will be part
+ * of the serialized data.
+ */
+static void
+store_obj_tojson(sdb_avltree_t *tree, int type, sdb_strbuf_t *buf,
+ sdb_store_matcher_t *filter, int flags)
+{
+ sdb_avltree_iter_t *iter;
+
+ assert((type == SDB_ATTRIBUTE)
+ || (type == SDB_METRIC)
+ || (type == SDB_SERVICE));
- iter = sdb_llist_get_iter(list);
+ sdb_strbuf_append(buf, "[");
+ iter = sdb_avltree_get_iter(tree);
if (! iter) {
char errbuf[1024];
sdb_log(SDB_LOG_ERR, "store: Failed to retrieve %ss: %s\n",
- TYPE_TO_NAME(type),
+ SDB_STORE_TYPE_TO_NAME(type),
sdb_strerror(errno, errbuf, sizeof(errbuf)));
sdb_strbuf_append(buf, "{\"error\": \"failed to retrieve %ss: %s\"}",
- TYPE_TO_NAME(type), errbuf);
+ SDB_STORE_TYPE_TO_NAME(type), errbuf);
}
/* has_next returns false if the iterator is NULL */
- while (sdb_llist_iter_has_next(iter)) {
- sdb_store_base_t *sobj = STORE_BASE(sdb_llist_iter_get_next(iter));
+ while (sdb_avltree_iter_has_next(iter)) {
+ sdb_store_obj_t *sobj = STORE_OBJ(sdb_avltree_iter_get_next(iter));
assert(sobj);
+ assert(sobj->type == type);
- if (! sdb_strftime(time_str, sizeof(time_str),
- "%F %T %z", sobj->last_update))
- snprintf(time_str, sizeof(time_str), "<error>");
- time_str[sizeof(time_str) - 1] = '\0';
+ if (filter && (! sdb_store_matcher_matches(filter, sobj, NULL)))
+ continue;
sdb_strbuf_append(buf, "{\"name\": \"%s\", ", SDB_OBJ(sobj)->name);
- if (type == SDB_ATTRIBUTE) {
- char tmp[sdb_data_strlen(&SDB_ATTR(sobj)->value) + 1];
- sdb_data_format(&SDB_ATTR(sobj)->value, tmp, sizeof(tmp),
+ if (sobj->type == SDB_ATTRIBUTE) {
+ char tmp[sdb_data_strlen(&ATTR(sobj)->value) + 1];
+ sdb_data_format(&ATTR(sobj)->value, tmp, sizeof(tmp),
SDB_DOUBLE_QUOTED);
- sdb_strbuf_append(buf, "\"value\": %s, \"last_update\": \"%s\"}",
- tmp, time_str);
+ sdb_strbuf_append(buf, "\"value\": %s, ", tmp);
+ }
+ store_common_tojson(sobj, buf);
+
+ if ((sobj->type == SDB_SERVICE)
+ && (! (flags & SDB_SKIP_ATTRIBUTES))) {
+ sdb_strbuf_append(buf, ", \"attributes\": ");
+ store_obj_tojson(SVC(sobj)->attributes, SDB_ATTRIBUTE,
+ buf, filter, flags);
+ }
+ else if ((sobj->type == SDB_METRIC)
+ && (! (flags & SDB_SKIP_ATTRIBUTES))) {
+ sdb_strbuf_append(buf, ", \"attributes\": ");
+ store_obj_tojson(METRIC(sobj)->attributes, SDB_ATTRIBUTE,
+ buf, filter, flags);
}
- else
- sdb_strbuf_append(buf, "\"last_update\": \"%s\"}", time_str);
+ sdb_strbuf_append(buf, "}");
- if (sdb_llist_iter_has_next(iter))
+ if (sdb_avltree_iter_has_next(iter))
sdb_strbuf_append(buf, ",");
}
- sdb_llist_iter_destroy(iter);
+ sdb_avltree_iter_destroy(iter);
sdb_strbuf_append(buf, "]");
} /* store_obj_tojson */
void
sdb_store_clear(void)
{
- sdb_llist_destroy(obj_list);
- obj_list = NULL;
+ sdb_avltree_destroy(hosts);
+ hosts = NULL;
} /* sdb_store_clear */
int
sdb_store_host(const char *name, sdb_time_t last_update)
{
- int status;
+ char *cname = NULL;
+ int status = 0;
if (! name)
return -1;
- pthread_rwlock_wrlock(&obj_lock);
- status = store_obj(/* parent = */ 0, NULL,
- /* stored object = */ SDB_HOST, name, last_update,
- /* updated_obj = */ NULL);
- pthread_rwlock_unlock(&obj_lock);
+ cname = sdb_plugin_cname(strdup(name));
+ if (! cname) {
+ sdb_log(SDB_LOG_ERR, "store: strdup failed");
+ return -1;
+ }
+
+ pthread_rwlock_wrlock(&host_lock);
+ if (! hosts)
+ if (! (hosts = sdb_avltree_create()))
+ status = -1;
+
+ if (! status)
+ status = store_obj(hosts, SDB_HOST, cname, last_update, NULL);
+ pthread_rwlock_unlock(&host_lock);
+
+ free(cname);
return status;
} /* sdb_store_host */
_Bool
sdb_store_has_host(const char *name)
{
- sdb_store_obj_t *host;
+ sdb_host_t *host;
if (! name)
return NULL;
- host = store_lookup(SDB_HOST, name);
+ host = lookup_host(name);
return host != NULL;
} /* sdb_store_has_host */
-sdb_store_base_t *
+sdb_store_obj_t *
sdb_store_get_host(const char *name)
{
- sdb_store_obj_t *host;
+ sdb_host_t *host;
if (! name)
return NULL;
- host = store_lookup(SDB_HOST, name);
+ host = lookup_host(name);
if (! host)
return NULL;
- sdb_object_ref(SDB_OBJ(host));
- return STORE_BASE(host);
+ return STORE_OBJ(host);
} /* sdb_store_get_host */
int
const char *key, const sdb_data_t *value,
sdb_time_t last_update)
{
- int status;
-
- sdb_store_base_t *updated_attr = NULL;
+ sdb_avltree_t *attrs;
+ int status = 0;
if ((! hostname) || (! key))
return -1;
- pthread_rwlock_wrlock(&obj_lock);
- status = store_obj(/* parent = */ SDB_HOST, hostname,
- /* stored object = */ SDB_ATTRIBUTE, key, last_update,
- &updated_attr);
-
- if (status >= 0) {
- assert(updated_attr);
- if (sdb_data_copy(&SDB_ATTR(updated_attr)->value, value)) {
- sdb_object_deref(SDB_OBJ(updated_attr));
- status = -1;
- }
+ pthread_rwlock_wrlock(&host_lock);
+ attrs = get_host_children(hostname, SDB_ATTRIBUTE);
+ if (! attrs) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' - "
+ "host '%s' not found", key, hostname);
+ status = -1;
}
- pthread_rwlock_unlock(&obj_lock);
+ if (! status)
+ status = store_attr(attrs, key, value, last_update);
+
+ pthread_rwlock_unlock(&host_lock);
return status;
} /* sdb_store_attribute */
sdb_store_service(const char *hostname, const char *name,
sdb_time_t last_update)
{
- int status;
+ sdb_avltree_t *services;
+
+ int status = 0;
if ((! hostname) || (! name))
return -1;
- pthread_rwlock_wrlock(&obj_lock);
- status = store_obj(/* parent = */ SDB_HOST, hostname,
- /* stored object = */ SDB_SERVICE, name, last_update,
- /* updated obj = */ NULL);
- pthread_rwlock_unlock(&obj_lock);
+ pthread_rwlock_wrlock(&host_lock);
+ services = get_host_children(hostname, SDB_SERVICE);
+ if (! services) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store service '%s' - "
+ "host '%s' not found", name, hostname);
+ status = -1;
+ }
+
+ if (! status)
+ status = store_obj(services, SDB_SERVICE, name, last_update, NULL);
+ pthread_rwlock_unlock(&host_lock);
return status;
} /* sdb_store_service */
int
-sdb_store_host_tojson(sdb_store_base_t *h, sdb_strbuf_t *buf, int flags)
+sdb_store_service_attr(const char *hostname, const char *service,
+ const char *key, const sdb_data_t *value, sdb_time_t last_update)
{
- sdb_store_obj_t *host;
- char time_str[64];
+ sdb_avltree_t *services;
+ sdb_service_t *svc;
+ int status = 0;
- if ((! h) || (h->type != SDB_HOST) || (! buf))
+ if ((! hostname) || (! service) || (! key))
return -1;
- host = SDB_STORE_OBJ(h);
+ pthread_rwlock_wrlock(&host_lock);
+ services = get_host_children(hostname, SDB_SERVICE);
+ if (! services) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' "
+ "for service '%s' - host '%ss' not found",
+ key, service, hostname);
+ pthread_rwlock_unlock(&host_lock);
+ return -1;
+ }
- if (! sdb_strftime(time_str, sizeof(time_str),
- "%F %T %z", host->_last_update))
- snprintf(time_str, sizeof(time_str), "<error>");
- time_str[sizeof(time_str) - 1] = '\0';
+ svc = SVC(sdb_avltree_lookup(services, service));
+ if (! svc) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' - "
+ "service '%s/%s' not found", key, hostname, service);
+ status = -1;
+ }
- sdb_strbuf_append(buf, "{\"name\": \"%s\", "
- "\"last_update\": \"%s\"",
- SDB_OBJ(host)->name, time_str);
+ if (! status)
+ status = store_attr(svc->attributes, key, value, last_update);
+
+ sdb_object_deref(SDB_OBJ(svc));
+ pthread_rwlock_unlock(&host_lock);
+ return status;
+} /* sdb_store_service_attr */
+
+int
+sdb_store_metric(const char *hostname, const char *name,
+ sdb_time_t last_update)
+{
+ sdb_avltree_t *metrics;
+
+ int status = 0;
+
+ if ((! hostname) || (! name))
+ return -1;
+
+ pthread_rwlock_wrlock(&host_lock);
+ metrics = get_host_children(hostname, SDB_METRIC);
+ if (! metrics) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store metric '%s' - "
+ "host '%s' not found", name, hostname);
+ status = -1;
+ }
+
+ if (! status)
+ status = store_obj(metrics, SDB_METRIC, name, last_update, NULL);
+ pthread_rwlock_unlock(&host_lock);
+ return status;
+} /* sdb_store_metric */
+
+int
+sdb_store_metric_attr(const char *hostname, const char *metric,
+ const char *key, const sdb_data_t *value, sdb_time_t last_update)
+{
+ sdb_avltree_t *metrics;
+ sdb_metric_t *m;
+ int status = 0;
+
+ if ((! hostname) || (! metric) || (! key))
+ return -1;
+
+ pthread_rwlock_wrlock(&host_lock);
+ metrics = get_host_children(hostname, SDB_METRIC);
+ if (! metrics) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' "
+ "for metric '%s' - host '%ss' not found",
+ key, metric, hostname);
+ pthread_rwlock_unlock(&host_lock);
+ return -1;
+ }
+
+ m = METRIC(sdb_avltree_lookup(metrics, metric));
+ if (! m) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' - "
+ "metric '%s/%s' not found", key, hostname, metric);
+ status = -1;
+ }
+
+ if (! status)
+ status = store_attr(m->attributes, key, value, last_update);
+
+ sdb_object_deref(SDB_OBJ(m));
+ pthread_rwlock_unlock(&host_lock);
+ return status;
+} /* sdb_store_metric_attr */
+
+int
+sdb_store_get_field(sdb_store_obj_t *obj, int field, sdb_data_t *res)
+{
+ if ((! obj) || (! res))
+ return -1;
+
+ switch (field) {
+ case SDB_FIELD_LAST_UPDATE:
+ res->type = SDB_TYPE_DATETIME;
+ res->data.datetime = obj->last_update;
+ break;
+ case SDB_FIELD_AGE:
+ res->type = SDB_TYPE_DATETIME;
+ res->data.datetime = sdb_gettime() - obj->last_update;
+ break;
+ case SDB_FIELD_INTERVAL:
+ res->type = SDB_TYPE_DATETIME;
+ res->data.datetime = obj->interval;
+ break;
+ case SDB_FIELD_BACKEND:
+ /* TODO: add support for storing array values in a data object
+ * for now, fall thru to the error case */
+ default:
+ return -1;
+ }
+ return 0;
+} /* sdb_store_get_field */
+
+int
+sdb_store_host_tojson(sdb_store_obj_t *h, sdb_strbuf_t *buf,
+ sdb_store_matcher_t *filter, int flags)
+{
+ sdb_host_t *host = HOST(h);
+
+ if ((! h) || (h->type != SDB_HOST) || (! buf))
+ return -1;
+
+ sdb_strbuf_append(buf, "{\"name\": \"%s\", ", SDB_OBJ(host)->name);
+ store_common_tojson(h, buf);
if (! (flags & SDB_SKIP_ATTRIBUTES)) {
sdb_strbuf_append(buf, ", \"attributes\": ");
- store_obj_tojson(host->attributes, SDB_ATTRIBUTE, buf);
+ store_obj_tojson(host->attributes, SDB_ATTRIBUTE, buf, filter, flags);
+ }
+
+ if (! (flags & SDB_SKIP_METRICS)) {
+ sdb_strbuf_append(buf, ", \"metrics\": ");
+ store_obj_tojson(host->metrics, SDB_METRIC, buf, filter, flags);
}
if (! (flags & SDB_SKIP_SERVICES)) {
sdb_strbuf_append(buf, ", \"services\": ");
- store_obj_tojson(host->children, SDB_SERVICE, buf);
+ store_obj_tojson(host->services, SDB_SERVICE, buf, filter, flags);
}
sdb_strbuf_append(buf, "}");
return 0;
} /* sdb_store_host_tojson */
-/* TODO: actually support hierarchical data */
int
-sdb_store_tojson(sdb_strbuf_t *buf, int flags)
+sdb_store_tojson(sdb_strbuf_t *buf, sdb_store_matcher_t *filter, int flags)
{
- sdb_llist_iter_t *host_iter;
+ sdb_avltree_iter_t *host_iter;
+ size_t len;
if (! buf)
return -1;
- pthread_rwlock_rdlock(&obj_lock);
+ pthread_rwlock_rdlock(&host_lock);
- host_iter = sdb_llist_get_iter(obj_list);
+ host_iter = sdb_avltree_get_iter(hosts);
if (! host_iter) {
- pthread_rwlock_unlock(&obj_lock);
+ pthread_rwlock_unlock(&host_lock);
return -1;
}
sdb_strbuf_append(buf, "{\"hosts\":[");
- while (sdb_llist_iter_has_next(host_iter)) {
- sdb_store_base_t *host = STORE_BASE(sdb_llist_iter_get_next(host_iter));
+ len = sdb_strbuf_len(buf);
+ while (sdb_avltree_iter_has_next(host_iter)) {
+ sdb_store_obj_t *host;
+
+ host = STORE_OBJ(sdb_avltree_iter_get_next(host_iter));
assert(host);
- if (sdb_store_host_tojson(host, buf, flags))
- return -1;
+ if (filter && (! sdb_store_matcher_matches(filter, host, NULL)))
+ continue;
- if (sdb_llist_iter_has_next(host_iter))
+ if (sdb_strbuf_len(buf) > len)
sdb_strbuf_append(buf, ",");
+ len = sdb_strbuf_len(buf);
+
+ if (sdb_store_host_tojson(host, buf, filter, flags))
+ return -1;
}
sdb_strbuf_append(buf, "]}");
- sdb_llist_iter_destroy(host_iter);
- pthread_rwlock_unlock(&obj_lock);
+ sdb_avltree_iter_destroy(host_iter);
+ pthread_rwlock_unlock(&host_lock);
return 0;
} /* sdb_store_tojson */
+/* TODO: actually support hierarchical data */
+int
+sdb_store_iterate(sdb_store_iter_cb cb, void *user_data)
+{
+ sdb_avltree_iter_t *host_iter;
+ int status = 0;
+
+ pthread_rwlock_rdlock(&host_lock);
+
+ host_iter = sdb_avltree_get_iter(hosts);
+ if (! host_iter)
+ status = -1;
+
+ /* has_next returns false if the iterator is NULL */
+ while (sdb_avltree_iter_has_next(host_iter)) {
+ sdb_store_obj_t *host;
+
+ host = STORE_OBJ(sdb_avltree_iter_get_next(host_iter));
+ assert(host);
+
+ if (cb(host, user_data)) {
+ status = -1;
+ break;
+ }
+ }
+
+ sdb_avltree_iter_destroy(host_iter);
+ pthread_rwlock_unlock(&host_lock);
+ return status;
+} /* sdb_store_iterate */
+
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */