diff --git a/src/core/store.c b/src/core/store.c
index 22e965ff1858c9891cbf862e3f1af7e91d50a6c8..7772548a6b0efb340251a37057e7476e400768ba 100644 (file)
--- a/src/core/store.c
+++ b/src/core/store.c
* private variables
*/
-typedef struct {
+struct sdb_store {
sdb_object_t super;
/* hosts are the top-level entries and
* reference everything else */
sdb_avltree_t *hosts;
pthread_rwlock_t host_lock;
-} sdb_store_t;
-#define ST(obj) ((sdb_store_t *)(obj))
-
-sdb_store_t *global_store = NULL;
+};
/*
* private types
store_init(sdb_object_t *obj, va_list __attribute__((unused)) ap)
{
int err;
- if (! (ST(obj)->hosts = sdb_avltree_create()))
+ if (! (SDB_STORE(obj)->hosts = sdb_avltree_create()))
return -1;
- if ((err = pthread_rwlock_init(&ST(obj)->host_lock, /* attr = */ NULL))) {
+ if ((err = pthread_rwlock_init(&SDB_STORE(obj)->host_lock,
+ /* attr = */ NULL))) {
char errbuf[128];
sdb_log(SDB_LOG_ERR, "store: Failed to initialize lock: %s",
sdb_strerror(err, errbuf, sizeof(errbuf)));
store_destroy(sdb_object_t *obj)
{
int err;
- if ((err = pthread_rwlock_destroy(&ST(obj)->host_lock))) {
+ if ((err = pthread_rwlock_destroy(&SDB_STORE(obj)->host_lock))) {
char errbuf[128];
sdb_log(SDB_LOG_ERR, "store: Failed to destroy lock: %s",
sdb_strerror(err, errbuf, sizeof(errbuf)));
return;
}
- sdb_avltree_destroy(ST(obj)->hosts);
- ST(obj)->hosts = NULL;
+ sdb_avltree_destroy(SDB_STORE(obj)->hosts);
+ SDB_STORE(obj)->hosts = NULL;
} /* store_destroy */
static int
static int
host_init(sdb_object_t *obj, va_list ap)
{
- sdb_host_t *sobj = HOST(obj);
+ host_t *sobj = HOST(obj);
int ret;
/* this will consume the first argument (type) of ap */
static void
host_destroy(sdb_object_t *obj)
{
- sdb_host_t *sobj = HOST(obj);
+ host_t *sobj = HOST(obj);
assert(obj);
store_obj_destroy(obj);
static int
service_init(sdb_object_t *obj, va_list ap)
{
- sdb_service_t *sobj = SVC(obj);
+ service_t *sobj = SVC(obj);
int ret;
/* this will consume the first argument (type) of ap */
static void
service_destroy(sdb_object_t *obj)
{
- sdb_service_t *sobj = SVC(obj);
+ service_t *sobj = SVC(obj);
assert(obj);
store_obj_destroy(obj);
};
static sdb_type_t host_type = {
- /* size = */ sizeof(sdb_host_t),
+ /* size = */ sizeof(host_t),
/* init = */ host_init,
/* destroy = */ host_destroy
};
static sdb_type_t service_type = {
- /* size = */ sizeof(sdb_service_t),
+ /* size = */ sizeof(service_t),
/* init = */ service_init,
/* destroy = */ service_destroy
};
};
static sdb_type_t attribute_type = {
- /* size = */ sizeof(sdb_attribute_t),
+ /* size = */ sizeof(attr_t),
/* init = */ attr_init,
/* destroy = */ attr_destroy
};
* private helper functions
*/
-static sdb_host_t *
-lookup_host(sdb_store_t *st, const char *name, bool canonicalize)
-{
- sdb_host_t *host;
- char *cname;
-
- assert(name);
- if (! canonicalize)
- return HOST(sdb_avltree_lookup(st->hosts, name));
-
- cname = strdup(name);
- cname = sdb_plugin_cname(cname);
- if (! cname) {
- sdb_log(SDB_LOG_ERR, "store: strdup failed");
- return NULL;
- }
-
- host = HOST(sdb_avltree_lookup(st->hosts, cname));
- free(cname);
- return host;
-} /* lookup_host */
-
static int
record_backend(sdb_store_obj_t *obj)
{
} /* store_attr */
static int
-store_metric_store(sdb_metric_t *metric, sdb_metric_store_t *store)
+store_metric_store(sdb_metric_t *metric, sdb_store_metric_t *m)
{
char *type = metric->store.type;
char *id = metric->store.id;
- if ((! metric->store.type) || strcasecmp(metric->store.type, store->type)) {
- if (! (type = strdup(store->type)))
+ if ((! metric->store.type) || strcasecmp(metric->store.type, m->store.type)) {
+ if (! (type = strdup(m->store.type)))
return -1;
}
- if ((! metric->store.id) || strcasecmp(metric->store.id, store->id)) {
- if (! (id = strdup(store->id))) {
+ if ((! metric->store.id) || strcasecmp(metric->store.id, m->store.id)) {
+ if (! (id = strdup(m->store.id))) {
if (type != metric->store.type)
free(type);
return -1;
/* The store's host_lock has to be acquired before calling this function. */
static sdb_avltree_t *
-get_host_children(sdb_host_t *host, int type)
+get_host_children(host_t *host, int type)
{
if ((type != SDB_SERVICE) && (type != SDB_METRIC)
&& (type != SDB_ATTRIBUTE))
*/
static int
-store_attribute(const char *hostname,
- const char *key, const sdb_data_t *value,
- sdb_time_t last_update, sdb_object_t *user_data)
+store_attribute(sdb_store_attribute_t *attr, sdb_object_t *user_data)
{
- sdb_store_t *st = ST(user_data);
+ sdb_store_t *st = SDB_STORE(user_data);
+ const char *hostname;
+ host_t *host;
- sdb_host_t *host;
+ sdb_store_obj_t *obj = NULL;
+ sdb_avltree_t *children = NULL;
sdb_avltree_t *attrs;
int status = 0;
- if ((! hostname) || (! key))
+ if ((! attr) || (! attr->parent) || (! attr->key))
+ return -1;
+
+ hostname = attr->hostname;
+ if (attr->parent_type == SDB_HOST)
+ hostname = attr->parent;
+ if (! hostname)
return -1;
pthread_rwlock_wrlock(&st->host_lock);
- host = lookup_host(st, hostname, /* canonicalize = */ 1);
- attrs = get_host_children(host, SDB_ATTRIBUTE);
- if (! attrs) {
+ host = HOST(sdb_avltree_lookup(st->hosts, hostname));
+ if (! host) {
sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' - "
- "host '%s' not found", key, hostname);
+ "host '%s' not found", attr->key, hostname);
status = -1;
}
+ switch (attr->parent_type) {
+ case SDB_HOST:
+ obj = STORE_OBJ(host);
+ attrs = get_host_children(host, SDB_ATTRIBUTE);
+ break;
+ case SDB_SERVICE:
+ children = get_host_children(host, SDB_SERVICE);
+ break;
+ case SDB_METRIC:
+ children = get_host_children(host, SDB_METRIC);
+ break;
+ default:
+ status = -1;
+ break;
+ }
+
+ if (children) {
+ obj = STORE_OBJ(sdb_avltree_lookup(children, attr->parent));
+ if (! obj) {
+ sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' - "
+ "%s '%s/%s' not found", attr->key,
+ SDB_STORE_TYPE_TO_NAME(attr->parent_type),
+ attr->hostname, attr->parent);
+ status = -1;
+ }
+ else
+ attrs = attr->parent_type == SDB_SERVICE
+ ? SVC(obj)->attributes
+ : METRIC(obj)->attributes;
+ }
+
if (! status)
- status = store_attr(STORE_OBJ(host), attrs, key, value, last_update);
+ status = store_attr(obj, attrs, attr->key, &attr->value, attr->last_update);
+ if (obj != STORE_OBJ(host))
+ sdb_object_deref(SDB_OBJ(obj));
sdb_object_deref(SDB_OBJ(host));
pthread_rwlock_unlock(&st->host_lock);
} /* store_attribute */
static int
-store_host(const char *name, sdb_time_t last_update, sdb_object_t *user_data)
+store_host(sdb_store_host_t *host, sdb_object_t *user_data)
{
- sdb_store_t *st = ST(user_data);
-
- char *cname = NULL;
+ sdb_store_t *st = SDB_STORE(user_data);
int status = 0;
- if (! name)
- return -1;
-
- cname = sdb_plugin_cname(strdup(name));
- if (! cname) {
- sdb_log(SDB_LOG_ERR, "store: strdup failed");
+ if ((! host) || (! host->name))
return -1;
- }
pthread_rwlock_wrlock(&st->host_lock);
status = store_obj(NULL, st->hosts,
- SDB_HOST, cname, last_update, NULL);
+ SDB_HOST, host->name, host->last_update, NULL);
pthread_rwlock_unlock(&st->host_lock);
- free(cname);
return status;
} /* store_host */
static int
-store_service_attr(const char *hostname, const char *service,
- const char *key, const sdb_data_t *value, sdb_time_t last_update,
- sdb_object_t *user_data)
-{
- sdb_store_t *st = ST(user_data);
-
- sdb_host_t *host;
- sdb_service_t *svc;
- sdb_avltree_t *services;
- int status = 0;
-
- if ((! hostname) || (! service) || (! key))
- return -1;
-
- pthread_rwlock_wrlock(&st->host_lock);
- host = lookup_host(st, hostname, /* canonicalize = */ 1);
- services = get_host_children(host, SDB_SERVICE);
- sdb_object_deref(SDB_OBJ(host));
- 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(&st->host_lock);
- return -1;
- }
-
- 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;
- }
-
- if (! status)
- status = store_attr(STORE_OBJ(svc), svc->attributes,
- key, value, last_update);
-
- sdb_object_deref(SDB_OBJ(svc));
- pthread_rwlock_unlock(&st->host_lock);
-
- return status;
-} /* store_service_attr */
-
-static int
-store_service(const char *hostname, const char *name,
- sdb_time_t last_update, sdb_object_t *user_data)
+store_service(sdb_store_service_t *service, sdb_object_t *user_data)
{
- sdb_store_t *st = ST(user_data);
+ sdb_store_t *st = SDB_STORE(user_data);
- sdb_host_t *host;
+ host_t *host;
sdb_avltree_t *services;
- sdb_data_t d;
int status = 0;
- if ((! hostname) || (! name))
+ if ((! service) || (! service->hostname) || (! service->name))
return -1;
pthread_rwlock_wrlock(&st->host_lock);
- host = lookup_host(st, hostname, /* canonicalize = */ 1);
+ host = HOST(sdb_avltree_lookup(st->hosts, service->hostname));
services = get_host_children(host, SDB_SERVICE);
if (! services) {
sdb_log(SDB_LOG_ERR, "store: Failed to store service '%s' - "
- "host '%s' not found", name, hostname);
+ "host '%s' not found", service->name, service->hostname);
status = -1;
}
if (! status)
status = store_obj(STORE_OBJ(host), services, SDB_SERVICE,
- name, last_update, NULL);
+ service->name, service->last_update, NULL);
sdb_object_deref(SDB_OBJ(host));
pthread_rwlock_unlock(&st->host_lock);
-
- if (status)
- return status;
-
- /* record the hostname as an attribute */
- d.type = SDB_TYPE_STRING;
- d.data.string = SDB_OBJ(host)->name;
- if (store_service_attr(hostname, name, "hostname", &d, last_update, user_data))
- status = -1;
return status;
} /* store_service */
static int
-store_metric_attr(const char *hostname, const char *metric,
- const char *key, const sdb_data_t *value, sdb_time_t last_update,
- sdb_object_t *user_data)
-{
- sdb_store_t *st = ST(user_data);
-
- sdb_avltree_t *metrics;
- sdb_host_t *host;
- sdb_metric_t *m;
- int status = 0;
-
- if ((! hostname) || (! metric) || (! key))
- return -1;
-
- pthread_rwlock_wrlock(&st->host_lock);
- host = lookup_host(st, hostname, /* canonicalize = */ 1);
- metrics = get_host_children(host, SDB_METRIC);
- sdb_object_deref(SDB_OBJ(host));
- if (! metrics) {
- sdb_log(SDB_LOG_ERR, "store: Failed to store attribute '%s' "
- "for metric '%s' - host '%s' not found",
- key, metric, hostname);
- pthread_rwlock_unlock(&st->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(STORE_OBJ(m), m->attributes,
- key, value, last_update);
-
- sdb_object_deref(SDB_OBJ(m));
- pthread_rwlock_unlock(&st->host_lock);
-
- return status;
-} /* store_metric_attr */
-
-static int
-store_metric(const char *hostname, const char *name,
- sdb_metric_store_t *store, sdb_time_t last_update,
- sdb_object_t *user_data)
+store_metric(sdb_store_metric_t *metric, sdb_object_t *user_data)
{
- sdb_store_t *st = ST(user_data);
+ sdb_store_t *st = SDB_STORE(user_data);
sdb_store_obj_t *obj = NULL;
- sdb_host_t *host;
- sdb_metric_t *metric;
- sdb_data_t d;
-
sdb_avltree_t *metrics;
+ host_t *host;
int status = 0;
- if ((! hostname) || (! name))
+ if ((! metric) || (! metric->hostname) || (! metric->name))
return -1;
- if (store) {
- if ((store->type != NULL) != (store->id != NULL))
- return -1;
- else if (! store->type)
- store = NULL;
- }
+ if ((metric->store.type != NULL) != (metric->store.id != NULL))
+ return -1;
pthread_rwlock_wrlock(&st->host_lock);
- host = lookup_host(st, hostname, /* canonicalize = */ 1);
+ host = HOST(sdb_avltree_lookup(st->hosts, metric->hostname));
metrics = get_host_children(host, SDB_METRIC);
if (! metrics) {
sdb_log(SDB_LOG_ERR, "store: Failed to store metric '%s' - "
- "host '%s' not found", name, hostname);
+ "host '%s' not found", metric->name, metric->hostname);
status = -1;
}
if (! status)
status = store_obj(STORE_OBJ(host), metrics, SDB_METRIC,
- name, last_update, &obj);
+ metric->name, metric->last_update, &obj);
sdb_object_deref(SDB_OBJ(host));
if (status) {
}
assert(obj);
- metric = METRIC(obj);
-
- if (store)
- if (store_metric_store(metric, store))
+ if (metric->store.type && metric->store.id)
+ if (store_metric_store(METRIC(obj), metric))
status = -1;
pthread_rwlock_unlock(&st->host_lock);
-
- /* record the hostname as an attribute */
- d.type = SDB_TYPE_STRING;
- d.data.string = SDB_OBJ(host)->name;
- if (store_metric_attr(hostname, name, "hostname", &d, last_update, user_data))
- status = -1;
return status;
} /* store_metric */
-static sdb_store_writer_t store_writer = {
- store_host, store_service, store_metric,
- store_attribute, store_service_attr, store_metric_attr,
+sdb_store_writer_t sdb_store_writer = {
+ store_host, store_service, store_metric, store_attribute,
+};
+
+static sdb_object_t *
+prepare_query(sdb_ast_node_t *ast,
+ sdb_strbuf_t __attribute__((unused)) *errbuf,
+ sdb_object_t __attribute__((unused)) *user_data)
+{
+ return SDB_OBJ(sdb_store_query_prepare(ast));
+} /* prepare_query */
+
+static int
+execute_query(sdb_object_t *q,
+ sdb_strbuf_t *buf, sdb_strbuf_t *errbuf,
+ sdb_object_t *user_data)
+{
+ return sdb_store_query_execute(SDB_STORE(user_data),
+ QUERY(q), buf, errbuf);
+} /* execute_query */
+
+sdb_store_reader_t sdb_store_reader = {
+ prepare_query, execute_query,
};
/*
* public API
*/
+sdb_store_t *
+sdb_store_create(void)
+{
+ return SDB_STORE(sdb_object_create("store", store_type));
+} /* sdb_store_create */
+
int
-sdb_store_init(void)
+sdb_store_host(sdb_store_t *store, const char *name, sdb_time_t last_update)
{
- if (global_store)
- return 0;
+ sdb_store_host_t host = {
+ name, last_update, 0, NULL, 0,
+ };
+ return store_host(&host, SDB_OBJ(store));
+} /* sdb_store_host */
- global_store = ST(sdb_object_create("store", store_type));
- if (! global_store) {
- sdb_log(SDB_LOG_ERR, "store: Failed to allocate store");
- return -1;
- }
- return sdb_plugin_register_writer("memstore",
- &store_writer, SDB_OBJ(global_store));
-} /* sdb_store_init */
+int
+sdb_store_service(sdb_store_t *store, const char *hostname, const char *name,
+ sdb_time_t last_update)
+{
+ sdb_store_service_t service = {
+ hostname, name, last_update, 0, NULL, 0,
+ };
+ return store_service(&service, SDB_OBJ(store));
+} /* sdb_store_service */
-void
-sdb_store_clear(void)
+int
+sdb_store_metric(sdb_store_t *store, const char *hostname, const char *name,
+ sdb_metric_store_t *metric_store, sdb_time_t last_update)
{
- if (! global_store)
- return;
- sdb_avltree_clear(global_store->hosts);
-} /* sdb_store_clear */
+ sdb_store_metric_t metric = {
+ hostname, name, { NULL, NULL }, last_update, 0, NULL, 0,
+ };
+ if (metric_store) {
+ metric.store.type = metric_store->type;
+ metric.store.id = metric_store->id;
+ }
+ return store_metric(&metric, SDB_OBJ(store));
+} /* sdb_store_metric */
-bool
-sdb_store_has_host(const char *name)
+int
+sdb_store_attribute(sdb_store_t *store, const char *hostname,
+ const char *key, const sdb_data_t *value, sdb_time_t last_update)
{
- sdb_host_t *host;
+ sdb_store_attribute_t attr = {
+ NULL, SDB_HOST, hostname, key, SDB_DATA_INIT, last_update, 0, NULL, 0,
+ };
+ if (value) {
+ attr.value = *value;
+ }
+ return store_attribute(&attr, SDB_OBJ(store));
+} /* sdb_store_attribute */
- if ((! global_store) || (! name))
- return false;
+int
+sdb_store_service_attr(sdb_store_t *store, const char *hostname,
+ const char *service, const char *key, const sdb_data_t *value,
+ sdb_time_t last_update)
+{
+ sdb_store_attribute_t attr = {
+ hostname, SDB_SERVICE, service, key, SDB_DATA_INIT, last_update, 0, NULL, 0,
+ };
+ if (value) {
+ attr.value = *value;
+ }
+ return store_attribute(&attr, SDB_OBJ(store));
+} /* sdb_store_service_attr */
- host = lookup_host(global_store, name, /* canonicalize = */ 0);
- sdb_object_deref(SDB_OBJ(host));
- return host != NULL;
-} /* sdb_store_has_host */
+int
+sdb_store_metric_attr(sdb_store_t *store, const char *hostname,
+ const char *metric, const char *key, const sdb_data_t *value,
+ sdb_time_t last_update)
+{
+ sdb_store_attribute_t attr = {
+ hostname, SDB_METRIC, metric, key, SDB_DATA_INIT, last_update, 0, NULL, 0,
+ };
+ if (value) {
+ attr.value = *value;
+ }
+ return store_attribute(&attr, SDB_OBJ(store));
+} /* sdb_store_metric_attr */
sdb_store_obj_t *
-sdb_store_get_host(const char *name)
+sdb_store_get_host(sdb_store_t *store, const char *name)
{
- sdb_host_t *host;
+ host_t *host;
- if ((! global_store) || (! name))
+ if ((! store) || (! name))
return NULL;
- host = lookup_host(global_store, name, /* canonicalize = */ 0);
+ host = HOST(sdb_avltree_lookup(store->hosts, name));
if (! host)
return NULL;
return 0;
} /* sdb_store_get_attr */
+/* TODO: sdb_store_fetch_timeseries should move into the plugin module */
+
int
-sdb_store_fetch_timeseries(const char *hostname, const char *metric,
+sdb_store_fetch_timeseries(sdb_store_t *store,
+ const char *hostname, const char *metric,
sdb_timeseries_opts_t *opts, sdb_strbuf_t *buf)
{
sdb_avltree_t *metrics;
- sdb_host_t *host;
+ host_t *host;
sdb_metric_t *m;
sdb_timeseries_t *ts;
int status = 0;
- if ((! global_store) || (! hostname) || (! metric) || (! opts) || (! buf))
+ if ((! store) || (! hostname) || (! metric) || (! opts) || (! buf))
return -1;
- pthread_rwlock_rdlock(&global_store->host_lock);
- host = lookup_host(global_store, hostname, /* canonicalize = */ 1);
+ pthread_rwlock_rdlock(&store->host_lock);
+ host = HOST(sdb_avltree_lookup(store->hosts, hostname));
metrics = get_host_children(host, SDB_METRIC);
sdb_object_deref(SDB_OBJ(host));
if (! metrics) {
sdb_log(SDB_LOG_ERR, "store: Failed to fetch time-series '%s/%s' "
"- host '%s' not found", hostname, metric, hostname);
- pthread_rwlock_unlock(&global_store->host_lock);
+ pthread_rwlock_unlock(&store->host_lock);
return -1;
}
if (! m) {
sdb_log(SDB_LOG_ERR, "store: Failed to fetch time-series '%s/%s' "
"- metric '%s' not found", hostname, metric, metric);
- pthread_rwlock_unlock(&global_store->host_lock);
+ pthread_rwlock_unlock(&store->host_lock);
return -1;
}
"- no data-store configured for the stored metric",
hostname, metric);
sdb_object_deref(SDB_OBJ(m));
- pthread_rwlock_unlock(&global_store->host_lock);
+ pthread_rwlock_unlock(&store->host_lock);
return -1;
}
strncpy(type, m->store.type, sizeof(type));
strncpy(id, m->store.id, sizeof(id));
- pthread_rwlock_unlock(&global_store->host_lock);
+ pthread_rwlock_unlock(&store->host_lock);
ts = sdb_plugin_fetch_timeseries(type, id, opts);
if (! ts) {
} /* sdb_store_fetch_timeseries */
int
-sdb_store_scan(int type, sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
+sdb_store_scan(sdb_store_t *store, int type,
+ sdb_store_matcher_t *m, sdb_store_matcher_t *filter,
sdb_store_lookup_cb cb, void *user_data)
{
sdb_avltree_iter_t *host_iter = NULL;
int status = 0;
- if ((! global_store) || (! cb))
+ if ((! store) || (! cb))
return -1;
if ((type != SDB_HOST) && (type != SDB_SERVICE) && (type != SDB_METRIC)) {
return -1;
}
- pthread_rwlock_rdlock(&global_store->host_lock);
- host_iter = sdb_avltree_get_iter(global_store->hosts);
+ pthread_rwlock_rdlock(&store->host_lock);
+ host_iter = sdb_avltree_get_iter(store->hosts);
if (! host_iter)
status = -1;
}
sdb_avltree_iter_destroy(host_iter);
- pthread_rwlock_unlock(&global_store->host_lock);
+ pthread_rwlock_unlock(&store->host_lock);
return status;
} /* sdb_store_scan */