diff --git a/src/core/store.c b/src/core/store.c
index 162a3fc2d7c736d97c5bd406e609a130f6ff2228..ee861d33eedafbbce9906b183bf06df3ffc11cfa 100644 (file)
--- a/src/core/store.c
+++ b/src/core/store.c
/*
- * syscollector - src/core/store.c
- * Copyright (C) 2012 Sebastian 'tokkee' Harl <sh@tokkee.org>
+ * SysDB - src/core/store.c
+ * Copyright (C) 2012-2013 Sebastian 'tokkee' Harl <sh@tokkee.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include "syscollector.h"
-#include "core/store.h"
-#include "utils/llist.h"
-#include "utils/string.h"
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#include "sysdb.h"
+#include "core/store-private.h"
+#include "core/plugin.h"
+#include "utils/avltree.h"
+#include "utils/error.h"
#include <assert.h>
* private variables
*/
-static sc_llist_t *host_list = NULL;
+static sdb_avltree_t *hosts = NULL;
static pthread_rwlock_t host_lock = PTHREAD_RWLOCK_INITIALIZER;
/*
- * private helper functions
+ * private types
*/
+static sdb_type_t sdb_host_type;
+static sdb_type_t sdb_service_type;
+static sdb_type_t sdb_attribute_type;
+
static int
-sc_store_obj_cmp_by_name(const sc_object_t *a, const sc_object_t *b)
+store_obj_init(sdb_object_t *obj, va_list ap)
{
- const sc_store_obj_t *h1 = (const sc_store_obj_t *)a;
- const sc_store_obj_t *h2 = (const sc_store_obj_t *)b;
+ sdb_store_obj_t *sobj = STORE_OBJ(obj);
- assert(h1 && h2);
- return strcasecmp(h1->name, h2->name);
-} /* sc_store_obj_cmp_by_name */
+ sobj->type = va_arg(ap, int);
-static int
-sc_host_init(sc_object_t *obj, va_list ap)
+ 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_obj_init */
+
+static void
+store_obj_destroy(sdb_object_t *obj)
{
- char *name = va_arg(ap, char *);
+ sdb_store_obj_t *sobj = STORE_OBJ(obj);
+ size_t i;
- SC_HOST(obj)->host_name = strdup(name);
- if (! SC_HOST(obj)->host_name)
- return -1;
+ 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_obj_destroy */
+
+static int
+sdb_host_init(sdb_object_t *obj, va_list ap)
+{
+ sdb_host_t *sobj = HOST(obj);
+ int ret;
- SC_HOST(obj)->host_last_update = sc_gettime();
- /* ignore errors -> last_update will be updated later */
+ /* this will consume the first argument (type) of ap */
+ ret = store_obj_init(obj, ap);
+ if (ret)
+ return ret;
- SC_HOST(obj)->services = sc_llist_create();
- if (! SC_HOST(obj)->services)
+ sobj->services = sdb_avltree_create();
+ if (! sobj->services)
+ return -1;
+ sobj->attributes = sdb_avltree_create();
+ if (! sobj->attributes)
return -1;
return 0;
-} /* sc_host_init */
+} /* sdb_host_init */
static void
-sc_host_destroy(sc_object_t *obj)
+sdb_host_destroy(sdb_object_t *obj)
{
+ sdb_host_t *sobj = HOST(obj);
assert(obj);
- if (SC_HOST(obj)->host_name)
- free(SC_HOST(obj)->host_name);
+ store_obj_destroy(obj);
- if (SC_HOST(obj)->services)
- sc_llist_destroy(SC_HOST(obj)->services);
-} /* sc_host_destroy */
+ if (sobj->services)
+ sdb_avltree_destroy(sobj->services);
+ if (sobj->attributes)
+ sdb_avltree_destroy(sobj->attributes);
+} /* sdb_host_destroy */
static int
-sc_svc_init(sc_object_t *obj, va_list ap)
+sdb_service_init(sdb_object_t *obj, va_list ap)
{
- char *hostname = va_arg(ap, char *);
- char *name = va_arg(ap, char *);
+ sdb_service_t *sobj = SVC(obj);
+ int ret;
- SC_SVC(obj)->hostname = strdup(hostname);
- SC_SVC(obj)->svc_name = strdup(name);
- if ((! SC_SVC(obj)->hostname) || (! SC_SVC(obj)->svc_name))
- return -1;
+ /* this will consume the first argument (type) of ap */
+ ret = store_obj_init(obj, ap);
+ if (ret)
+ return ret;
- SC_SVC(obj)->svc_last_update = sc_gettime();
- /* ignore errors -> last_update will be updated later */
+ sobj->attributes = sdb_avltree_create();
+ if (! sobj->attributes)
+ return -1;
return 0;
-} /* sc_svc_init */
+} /* sdb_service_init */
static void
-sc_svc_destroy(sc_object_t *obj)
+sdb_service_destroy(sdb_object_t *obj)
{
+ sdb_service_t *sobj = SVC(obj);
assert(obj);
- if (SC_SVC(obj)->hostname)
- free(SC_SVC(obj)->hostname);
- if (SC_SVC(obj)->svc_name)
- free(SC_SVC(obj)->svc_name);
-} /* sc_svc_destroy */
+ store_obj_destroy(obj);
-/*
- * public API
- */
+ if (sobj->attributes)
+ sdb_avltree_destroy(sobj->attributes);
+} /* sdb_service_destroy */
-sc_host_t *
-sc_host_create(char *name)
+static int
+sdb_attr_init(sdb_object_t *obj, va_list ap)
{
- sc_object_t *obj;
+ const sdb_data_t *value;
+ int ret;
+
+ /* this will consume the first two arguments
+ * (type and last_update) of 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(&ATTR(obj)->value, value))
+ return -1;
+ return 0;
+} /* sdb_attr_init */
- if (! name)
- return NULL;
+static void
+sdb_attr_destroy(sdb_object_t *obj)
+{
+ assert(obj);
- obj = sc_object_create(sizeof(sc_host_t), sc_host_init,
- sc_host_destroy, name);
- if (! obj)
- return NULL;
- return SC_HOST(obj);
-} /* sc_host_create */
+ store_obj_destroy(obj);
+ sdb_data_free_datum(&ATTR(obj)->value);
+} /* sdb_attr_destroy */
-sc_host_t *
-sc_host_clone(const sc_host_t *host)
-{
- sc_host_t *clone;
+static sdb_type_t sdb_host_type = {
+ sizeof(sdb_host_t),
+ sdb_host_init,
+ sdb_host_destroy
+};
- clone = sc_host_create(host->host_name);
- if (! clone)
- return NULL;
+static sdb_type_t sdb_service_type = {
+ sizeof(sdb_service_t),
+ sdb_service_init,
+ sdb_service_destroy
+};
- clone->host_last_update = host->host_last_update;
- if (host->services) {
- clone->services = sc_llist_clone(host->services);
- if (! clone->services) {
- sc_object_deref(SC_OBJ(clone));
- return NULL;
- }
- }
- else
- clone->services = NULL;
- return clone;
-} /* sc_host_clone */
+static sdb_type_t sdb_attribute_type = {
+ sizeof(sdb_attribute_t),
+ sdb_attr_init,
+ sdb_attr_destroy
+};
-int
-sc_store_host(const sc_host_t *host)
+/*
+ * private helper functions
+ */
+
+static sdb_host_t *
+lookup_host(const char *name)
{
- sc_time_t last_update;
+ return HOST(sdb_avltree_lookup(hosts, name));
+} /* lookup_host */
- sc_host_t *old;
- int status = 0;
+static int
+record_backend(sdb_store_obj_t *obj)
+{
+ const sdb_plugin_info_t *info;
+ char **tmp;
+ size_t i;
+
+ info = sdb_plugin_current();
+ if (! info)
+ return 0;
- if ((! host) || (! host->host_name))
+ for (i = 0; i < obj->backends_num; ++i)
+ if (!strcasecmp(obj->backends[i], info->plugin_name))
+ return 0;
+
+ tmp = realloc(obj->backends,
+ (obj->backends_num + 1) * sizeof(*obj->backends));
+ if (! tmp)
return -1;
- last_update = host->host_last_update;
- if (last_update <= 0)
- last_update = sc_gettime();
+ obj->backends = tmp;
+ obj->backends[obj->backends_num] = strdup(info->plugin_name);
+ if (! obj->backends[obj->backends_num])
+ return -1;
- pthread_rwlock_wrlock(&host_lock);
+ ++obj->backends_num;
+ return 0;
+} /* record_backend */
- if (! host_list) {
- if (! (host_list = sc_llist_create())) {
- pthread_rwlock_unlock(&host_lock);
- return -1;
- }
- }
+static int
+store_obj(sdb_avltree_t *parent_tree, int type, const char *name,
+ sdb_time_t last_update, sdb_store_obj_t **updated_obj)
+{
+ sdb_store_obj_t *old, *new;
+ int status = 0;
- old = SC_HOST(sc_llist_search(host_list, (const sc_object_t *)host,
- sc_store_obj_cmp_by_name));
+ assert(parent_tree);
+ if (last_update <= 0)
+ last_update = sdb_gettime();
+
+ old = STORE_OBJ(sdb_avltree_lookup(parent_tree, name));
if (old) {
- if (old->host_last_update > last_update) {
- fprintf(stderr, "store: Cannot update host '%s' - "
- "value too old (%"PRIscTIME" < %"PRIscTIME")\n",
- host->host_name, last_update, old->host_last_update);
- /* don't report an error; the host may be updated by multiple
+ if (old->last_update > last_update) {
+ sdb_log(SDB_LOG_DEBUG, "store: Cannot update %s '%s' - "
+ "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 {
- old->host_last_update = last_update;
+ 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;
+ }
}
+
+ new = old;
+ sdb_object_deref(SDB_OBJ(old));
}
else {
- sc_host_t *new = sc_host_clone(host);
- if (! new) {
- char errbuf[1024];
- fprintf(stderr, "store: Failed to clone host object: %s\n",
- sc_strerror(errno, errbuf, sizeof(errbuf)));
- return -1;
+ if (type == SDB_ATTRIBUTE) {
+ /* the value will be updated by the caller */
+ new = STORE_OBJ(sdb_object_create(name, sdb_attribute_type,
+ type, last_update, NULL));
}
-
- if (! new->services) {
- if (! (new->services = sc_llist_create())) {
- char errbuf[1024];
- fprintf(stderr, "store: Failed to initialize "
- "host object '%s': %s\n", host->host_name,
- sc_strerror(errno, errbuf, sizeof(errbuf)));
- sc_object_deref(SC_OBJ(new));
- return -1;
- }
+ else {
+ sdb_type_t t;
+ t = type == SDB_HOST ? sdb_host_type : sdb_service_type;
+ new = STORE_OBJ(sdb_object_create(name, t, type, last_update));
}
- status = sc_llist_insert_sorted(host_list, SC_OBJ(new),
- sc_store_obj_cmp_by_name);
+ if (new) {
+ status = sdb_avltree_insert(parent_tree, SDB_OBJ(new));
- /* pass control to the list or destroy in case of an error */
- sc_object_deref(SC_OBJ(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",
+ SDB_STORE_TYPE_TO_NAME(type), name,
+ sdb_strerror(errno, errbuf, sizeof(errbuf)));
+ status = -1;
+ }
}
- pthread_rwlock_unlock(&host_lock);
+ if (status < 0)
+ return status;
+ assert(new);
+
+ if (updated_obj)
+ *updated_obj = new;
+
+ if (record_backend(new))
+ return -1;
return status;
-} /* sc_store_host */
+} /* store_obj */
-const sc_host_t *
-sc_store_get_host(char *name)
+static int
+store_attr(sdb_avltree_t *attributes, const char *key, const sdb_data_t *value,
+ sdb_time_t last_update)
{
- sc_host_t tmp = SC_HOST_INIT;
- sc_host_t *host;
+ sdb_store_obj_t *attr = NULL;
+ int status;
- if (! name)
+ 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_ATTRIBUTE));
+
+ if (! hosts)
return NULL;
- tmp.host_name = name;
- host = SC_HOST(sc_llist_search(host_list, (const sc_object_t *)&tmp,
- sc_store_obj_cmp_by_name));
+ 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;
- return host;
-} /* sc_store_get_host */
-sc_service_t *
-sc_service_create(char *hostname, char *name)
+ sdb_object_deref(SDB_OBJ(host));
+ if (type == SDB_ATTRIBUTE)
+ return host->attributes;
+ else
+ return host->services;
+} /* get_host_children */
+
+/*
+ * 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_common_tojson(sdb_store_obj_t *obj, sdb_strbuf_t *buf)
{
- sc_object_t *obj;
+ 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';
+
+ 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, "\"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 */
- if ((! hostname) || (! name))
- return NULL;
+/*
+ * store_obj_tojson serializes attribute / 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_SERVICE));
+
+ 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",
+ SDB_STORE_TYPE_TO_NAME(type),
+ sdb_strerror(errno, errbuf, sizeof(errbuf)));
+ sdb_strbuf_append(buf, "{\"error\": \"failed to retrieve %ss: %s\"}",
+ SDB_STORE_TYPE_TO_NAME(type), errbuf);
+ }
- obj = sc_object_create(sizeof(sc_service_t), sc_svc_init,
- sc_svc_destroy, hostname, name);
- if (! obj)
- return NULL;
- return SC_SVC(obj);
-} /* sc_service_create */
+ /* has_next returns false if the iterator is NULL */
+ 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 (filter && (! sdb_store_matcher_matches(filter, sobj, NULL)))
+ continue;
+
+ sdb_strbuf_append(buf, "{\"name\": \"%s\", ", SDB_OBJ(sobj)->name);
+ 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, ", 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);
+ }
+ sdb_strbuf_append(buf, "}");
+
+ if (sdb_avltree_iter_has_next(iter))
+ sdb_strbuf_append(buf, ",");
+ }
+
+ sdb_avltree_iter_destroy(iter);
+ sdb_strbuf_append(buf, "]");
+} /* store_obj_tojson */
+
+/*
+ * public API
+ */
+
+void
+sdb_store_clear(void)
+{
+ sdb_avltree_destroy(hosts);
+ hosts = NULL;
+} /* sdb_store_clear */
+
+int
+sdb_store_host(const char *name, sdb_time_t last_update)
+{
+ char *cname = NULL;
+ int status = 0;
+
+ if (! name)
+ return -1;
+
+ 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 */
-sc_service_t *
-sc_service_clone(const sc_service_t *svc)
+_Bool
+sdb_store_has_host(const char *name)
{
- sc_service_t *clone;
+ sdb_host_t *host;
- clone = sc_service_create(svc->hostname, svc->svc_name);
- if (! clone)
+ if (! name)
return NULL;
- clone->svc_last_update = svc->svc_last_update;
- return clone;
-} /* sc_service_clone */
+ host = lookup_host(name);
+ return host != NULL;
+} /* sdb_store_has_host */
-int
-sc_store_service(const sc_service_t *svc)
+sdb_store_obj_t *
+sdb_store_get_host(const char *name)
{
- sc_host_t tmp = SC_HOST_INIT;
- sc_host_t *host;
+ sdb_host_t *host;
- sc_service_t *old;
+ if (! name)
+ return NULL;
+
+ host = lookup_host(name);
+ if (! host)
+ return NULL;
- sc_time_t last_update;
+ return STORE_OBJ(host);
+} /* sdb_store_get_host */
+int
+sdb_store_attribute(const char *hostname,
+ const char *key, const sdb_data_t *value,
+ sdb_time_t last_update)
+{
+ sdb_avltree_t *attrs;
int status = 0;
- if (! svc)
+ if ((! hostname) || (! key))
return -1;
- last_update = svc->svc_last_update;
- if (last_update <= 0)
- last_update = sc_gettime();
+ 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;
+ }
+
+ if (! status)
+ status = store_attr(attrs, key, value, last_update);
- if (! host_list)
+ pthread_rwlock_unlock(&host_lock);
+ return status;
+} /* sdb_store_attribute */
+
+int
+sdb_store_service(const char *hostname, const char *name,
+ sdb_time_t last_update)
+{
+ sdb_avltree_t *services;
+
+ int status = 0;
+
+ if ((! hostname) || (! name))
return -1;
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;
+ }
- tmp.host_name = svc->hostname;
- host = SC_HOST(sc_llist_search(host_list, (const sc_object_t *)&tmp,
- sc_store_obj_cmp_by_name));
+ if (! status)
+ status = store_obj(services, SDB_SERVICE, name, last_update, NULL);
+ pthread_rwlock_unlock(&host_lock);
+ return status;
+} /* sdb_store_service */
- if (! host)
- return -1;
+int
+sdb_store_service_attr(const char *hostname, const char *service,
+ const char *key, const sdb_data_t *value, sdb_time_t last_update)
+{
+ sdb_avltree_t *services;
+ sdb_service_t *svc;
+ int status = 0;
- old = SC_SVC(sc_llist_search(host->services, (const sc_object_t *)svc,
- sc_store_obj_cmp_by_name));
+ if ((! hostname) || (! service) || (! key))
+ return -1;
- if (old) {
- if (old->host_last_update > last_update) {
- fprintf(stderr, "store: Cannot update service '%s/%s' - "
- "value too old (%"PRIscTIME" < %"PRIscTIME")\n",
- svc->hostname, svc->svc_name, last_update,
- old->host_last_update);
- status = 1;
- }
- else {
- old->svc_last_update = last_update;
- }
+ 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;
}
- else {
- sc_service_t *new = sc_service_clone(svc);
- if (! new) {
- char errbuf[1024];
- fprintf(stderr, "store: Failed to clone service object: %s\n",
- sc_strerror(errno, errbuf, sizeof(errbuf)));
- return -1;
- }
-
- status = sc_llist_insert_sorted(host->services, SC_OBJ(new),
- sc_store_obj_cmp_by_name);
- /* pass control to the list or destroy in case of an error */
- sc_object_deref(SC_OBJ(new));
+ 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(svc->attributes, key, value, last_update);
+
+ sdb_object_deref(SDB_OBJ(svc));
pthread_rwlock_unlock(&host_lock);
return status;
-} /* sc_store_service */
+} /* sdb_store_service_attr */
-const sc_service_t *
-sc_store_get_service(const sc_host_t *host, char *name)
+int
+sdb_store_host_tojson(sdb_store_obj_t *h, sdb_strbuf_t *buf,
+ sdb_store_matcher_t *filter, int flags)
{
- sc_service_t tmp = SC_SVC_INIT;
- sc_service_t *svc;
+ sdb_host_t *host = HOST(h);
- if ((! host) || (! name))
- return NULL;
+ if ((! h) || (h->type != SDB_HOST) || (! buf))
+ return -1;
- tmp.svc_name = name;
- svc = SC_SVC(sc_llist_search(host->services, (const sc_object_t *)&tmp,
- sc_store_obj_cmp_by_name));
+ sdb_strbuf_append(buf, "{\"name\": \"%s\", ", SDB_OBJ(host)->name);
+ store_common_tojson(h, buf);
- if (! svc)
- return NULL;
- return svc;
-} /* sc_store_get_service */
+ if (! (flags & SDB_SKIP_ATTRIBUTES)) {
+ sdb_strbuf_append(buf, ", \"attributes\": ");
+ store_obj_tojson(host->attributes, SDB_ATTRIBUTE, buf, filter, flags);
+ }
+
+ if (! (flags & SDB_SKIP_SERVICES)) {
+ sdb_strbuf_append(buf, ", \"services\": ");
+ store_obj_tojson(host->services, SDB_SERVICE, buf, filter, flags);
+ }
+
+ sdb_strbuf_append(buf, "}");
+ return 0;
+} /* sdb_store_host_tojson */
int
-sc_store_dump(FILE *fh)
+sdb_store_tojson(sdb_strbuf_t *buf, sdb_store_matcher_t *filter, int flags)
{
- sc_llist_iter_t *host_iter;
+ sdb_avltree_iter_t *host_iter;
+ size_t len;
- if (! fh)
+ if (! buf)
return -1;
pthread_rwlock_rdlock(&host_lock);
- host_iter = sc_llist_get_iter(host_list);
- if (! host_iter)
+ host_iter = sdb_avltree_get_iter(hosts);
+ if (! host_iter) {
+ pthread_rwlock_unlock(&host_lock);
return -1;
+ }
- while (sc_llist_iter_has_next(host_iter)) {
- sc_host_t *host = SC_HOST(sc_llist_iter_get_next(host_iter));
- sc_llist_iter_t *svc_iter;
+ sdb_strbuf_append(buf, "{\"hosts\":[");
- char time_str[64];
+ 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 (! sc_strftime(time_str, sizeof(time_str),
- "%F %T %z", host->host_last_update))
- snprintf(time_str, sizeof(time_str), "<error>");
- time_str[sizeof(time_str) - 1] = '\0';
+ if (filter && (! sdb_store_matcher_matches(filter, host, NULL)))
+ continue;
- fprintf(fh, "Host '%s' (last updated: %s):\n",
- host->host_name, time_str);
+ if (sdb_strbuf_len(buf) > len)
+ sdb_strbuf_append(buf, ",");
+ len = sdb_strbuf_len(buf);
- svc_iter = sc_llist_get_iter(host->services);
- if (! svc_iter) {
- char errbuf[1024];
- fprintf(fh, "Failed to retrieve services: %s\n",
- sc_strerror(errno, errbuf, sizeof(errbuf)));
- continue;
- }
+ if (sdb_store_host_tojson(host, buf, filter, flags))
+ return -1;
+ }
- while (sc_llist_iter_has_next(svc_iter)) {
- sc_service_t *svc = SC_SVC(sc_llist_iter_get_next(svc_iter));
- assert(svc);
+ sdb_strbuf_append(buf, "]}");
- if (! sc_strftime(time_str, sizeof(time_str),
- "%F %T %z", host->host_last_update))
- snprintf(time_str, sizeof(time_str), "<error>");
- time_str[sizeof(time_str) - 1] = '\0';
+ sdb_avltree_iter_destroy(host_iter);
+ pthread_rwlock_unlock(&host_lock);
+ return 0;
+} /* sdb_store_tojson */
- fprintf(fh, "\tService '%s' (last updated: %s)\n",
- svc->svc_name, time_str);
- }
+/* 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;
- sc_llist_iter_destroy(svc_iter);
+ host = STORE_OBJ(sdb_avltree_iter_get_next(host_iter));
+ assert(host);
+
+ if (cb(host, user_data)) {
+ status = -1;
+ break;
+ }
}
- sc_llist_iter_destroy(host_iter);
- return 0;
-} /* sc_store_dump */
+ 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 : */