diff --git a/src/core/store.c b/src/core/store.c
index b013dcdd1683cae08f1a4993121605e0674b5712..b2fb0f602837f62128e09c849b00dde84f1389c0 100644 (file)
--- a/src/core/store.c
+++ b/src/core/store.c
/*
* SysDB - src/core/store.c
- * Copyright (C) 2012 Sebastian 'tokkee' Harl <sh@tokkee.org>
+ * 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.
*/
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif /* HAVE_CONFIG_H */
+
#include "sysdb.h"
-#include "core/store.h"
-#include "core/error.h"
+#include "core/store-private.h"
#include "core/plugin.h"
+#include "utils/error.h"
#include "utils/llist.h"
#include <assert.h>
static sdb_type_t sdb_store_obj_type;
static sdb_type_t sdb_attribute_type;
-struct store_obj;
-typedef struct store_obj store_obj_t;
-
-struct store_obj {
- sdb_object_t super;
- sdb_time_t last_update;
- store_obj_t *parent;
-};
-#define STORE_OBJ(obj) ((store_obj_t *)(obj))
-#define STORE_CONST_OBJ(obj) ((const store_obj_t *)(obj))
-
-typedef struct {
- store_obj_t super;
-
- char *value;
-} sdb_attribute_t;
-#define SDB_ATTR(obj) ((sdb_attribute_t *)(obj))
-#define SDB_CONST_ATTR(obj) ((const sdb_attribute_t *)(obj))
-
-typedef struct {
- store_obj_t super;
-
- int type;
- sdb_llist_t *children;
-
- sdb_llist_t *attributes;
-} sdb_store_obj_t;
-#define SDB_STORE_OBJ(obj) ((sdb_store_obj_t *)(obj))
-#define SDB_CONST_STORE_OBJ(obj) ((const sdb_store_obj_t *)(obj))
-
-enum {
- SDB_HOST = 1,
- SDB_SERVICE,
-};
-#define TYPE_TO_NAME(t) \
- (((t) == SDB_HOST) ? "host" \
- : ((t) == SDB_SERVICE) ? "service" : "unknown")
-
-/* shortcuts for accessing the sdb_store_obj_t attributes
- * of inheriting objects */
-#define _last_update super.last_update
-
static int
-store_obj_init(sdb_object_t *obj, va_list __attribute__((unused)) ap)
+store_base_init(sdb_object_t *obj, va_list ap)
{
- store_obj_t *sobj = STORE_OBJ(obj);
- sobj->last_update = sdb_gettime();
- /* ignore errors -> last_update will be updated later */
+ sdb_store_base_t *sobj = STORE_BASE(obj);
+ sobj->type = va_arg(ap, int);
+
+ sobj->last_update = va_arg(ap, sdb_time_t);
sobj->parent = NULL;
return 0;
-} /* store_obj_init */
+} /* store_base_init */
static void
-store_obj_destroy(sdb_object_t *obj)
+store_base_destroy(sdb_object_t *obj)
{
- const store_obj_t *sobj = STORE_OBJ(obj);
+ const sdb_store_base_t *sobj = STORE_CONST_BASE(obj);
if (sobj->parent)
sdb_object_deref(SDB_OBJ(sobj->parent));
-} /* store_obj_destroy */
-
-static sdb_object_t *
-store_obj_clone(const sdb_object_t *obj)
-{
- const store_obj_t *sobj = STORE_CONST_OBJ(obj);
- store_obj_t *new;
-
- new = STORE_OBJ(sdb_object_create(obj->name, obj->type));
- if (! new)
- return NULL;
-
- new->last_update = sobj->last_update;
- sdb_object_ref(SDB_OBJ(sobj->parent));
- new->parent = sobj->parent;
- return SDB_OBJ(new);
-} /* store_obj_clone */
+} /* store_base_destroy */
static int
sdb_store_obj_init(sdb_object_t *obj, va_list ap)
sdb_store_obj_t *sobj = SDB_STORE_OBJ(obj);
int ret;
- ret = store_obj_init(obj, ap);
+ /* this will consume the first argument (type) of ap */
+ ret = store_base_init(obj, ap);
if (ret)
return ret;
- sobj->type = va_arg(ap, int);
-
sobj->children = sdb_llist_create();
if (! sobj->children)
return -1;
assert(obj);
- store_obj_destroy(obj);
+ store_base_destroy(obj);
if (sobj->children)
sdb_llist_destroy(sobj->children);
sdb_llist_destroy(sobj->attributes);
} /* sdb_store_obj_destroy */
-static sdb_object_t *
-sdb_store_obj_clone(const sdb_object_t *obj)
-{
- const sdb_store_obj_t *sobj = SDB_CONST_STORE_OBJ(obj);
- sdb_store_obj_t *new;
-
- new = SDB_STORE_OBJ(store_obj_clone(obj));
- if (! new)
- return NULL;
-
- new->type = sobj->type;
-
- /* make sure these are initialized; else sdb_object_deref() might access
- * arbitrary memory in case of an error */
- new->children = new->attributes = NULL;
-
- if (sobj->children) {
- new->children = sdb_llist_clone(sobj->children);
- if (! new->children) {
- sdb_object_deref(SDB_OBJ(new));
- return NULL;
- }
- }
- if (sobj->attributes) {
- new->attributes = sdb_llist_clone(sobj->attributes);
- if (! new->attributes) {
- sdb_object_deref(SDB_OBJ(new));
- return NULL;
- }
- }
-
- new->_last_update = sobj->_last_update;
- return SDB_OBJ(new);
-} /* sdb_store_obj_clone */
-
static int
sdb_attr_init(sdb_object_t *obj, va_list ap)
{
- const char *value = va_arg(ap, const char *);
+ const sdb_data_t *value;
int ret;
- ret = store_obj_init(obj, ap);
+ /* this will consume the first two arguments
+ * (type and last_update) of ap */
+ ret = store_base_init(obj, ap);
if (ret)
return ret;
+ value = va_arg(ap, const sdb_data_t *);
- SDB_ATTR(obj)->value = strdup(value);
- if (! SDB_ATTR(obj)->value)
- return -1;
+ if (value)
+ if (sdb_data_copy(&SDB_ATTR(obj)->value, value))
+ return -1;
return 0;
} /* sdb_attr_init */
{
assert(obj);
- store_obj_destroy(obj);
-
- if (SDB_ATTR(obj)->value)
- free(SDB_ATTR(obj)->value);
+ store_base_destroy(obj);
+ sdb_data_free_datum(&SDB_ATTR(obj)->value);
} /* sdb_attr_destroy */
-static sdb_object_t *
-sdb_attr_clone(const sdb_object_t *obj)
-{
- const sdb_attribute_t *attr = (const sdb_attribute_t *)obj;
- sdb_attribute_t *new;
-
- new = SDB_ATTR(store_obj_clone(obj));
- if (! new)
- return NULL;
-
- if (attr->value)
- new->value = strdup(attr->value);
- if (! new->value) {
- sdb_object_deref(SDB_OBJ(new));
- return NULL;
- }
- return SDB_OBJ(new);
-} /* sdb_attr_clone */
-
static sdb_type_t sdb_store_obj_type = {
sizeof(sdb_store_obj_t),
sdb_store_obj_init,
- sdb_store_obj_destroy,
- sdb_store_obj_clone
+ sdb_store_obj_destroy
};
static sdb_type_t sdb_attribute_type = {
sizeof(sdb_attribute_t),
sdb_attr_init,
- sdb_attr_destroy,
- sdb_attr_clone
+ sdb_attr_destroy
};
/*
*/
static sdb_store_obj_t *
-sdb_store_lookup_in_list(sdb_llist_t *l, int type, const char *name)
+store_lookup_in_list(sdb_llist_t *l, int type, const char *name)
{
sdb_llist_iter_t *iter;
sdb_store_obj_t *sobj = SDB_STORE_OBJ(sdb_llist_iter_get_next(iter));
assert(sobj);
- if ((sobj->type == type)
+ if ((STORE_BASE(sobj)->type == type)
&& (! strcasecmp(SDB_OBJ(sobj)->name, name))) {
sdb_llist_iter_destroy(iter);
return sobj;
}
- sobj = sdb_store_lookup_in_list(sobj->children, type, name);
+ /* don't lookups non-host types from hierarchical hosts */
+ if ((type != SDB_HOST) && (STORE_BASE(sobj)->type == SDB_HOST))
+ continue;
+
+ 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;
-} /* sdb_store_lookup_in_list */
+} /* store_lookup_in_list */
static sdb_store_obj_t *
-sdb_store_lookup(int type, const char *name)
+store_lookup(int type, const char *name)
{
- return sdb_store_lookup_in_list(obj_list, type, name);
-} /* sdb_store_lookup */
+ return store_lookup_in_list(obj_list, type, name);
+} /* store_lookup */
+/* 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)
+ int type, const char *name, sdb_time_t last_update,
+ sdb_store_base_t **updated_obj)
{
+ char *parent_cname = NULL, *cname = NULL;
+
sdb_llist_t *parent_list;
- sdb_store_obj_t *old;
+ sdb_store_base_t *old;
int status = 0;
- if (! name)
- return -1;
-
if (last_update <= 0)
last_update = sdb_gettime();
assert((parent_type == 0)
- || (parent_type = SDB_HOST)
+ || (parent_type == SDB_HOST)
|| (parent_type == SDB_SERVICE));
- assert((type == 0) || (type = SDB_HOST) || (type == SDB_SERVICE));
-
- pthread_rwlock_wrlock(&obj_lock);
+ 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())) {
- pthread_rwlock_unlock(&obj_lock);
+ free(parent_cname);
+ free(cname);
return -1;
}
}
if (parent_type && parent_name) {
sdb_store_obj_t *parent;
- parent = sdb_store_lookup(parent_type, parent_name);
+ 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);
- pthread_rwlock_unlock(&obj_lock);
+ free(parent_cname);
+ free(cname);
return -1;
}
- parent_list = parent->children;
+ if (type == SDB_ATTRIBUTE)
+ parent_list = parent->attributes;
+ else
+ parent_list = parent->children;
}
- /* TODO: only look into direct children? */
- old = sdb_store_lookup_in_list(parent_list, type, name);
+ 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));
if (old) {
- if (old->_last_update > last_update) {
+ 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);
+ 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 {
- old->_last_update = last_update;
+ old->last_update = last_update;
}
+
+ if (updated_obj)
+ *updated_obj = old;
}
else {
- sdb_store_obj_t *new = SDB_STORE_OBJ(sdb_object_create(name,
- sdb_store_obj_type, type));
+ sdb_store_base_t *new;
+
+ if (type == SDB_ATTRIBUTE)
+ /* the value will be updated by the caller */
+ new = STORE_BASE(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));
+
if (! new) {
char errbuf[1024];
sdb_log(SDB_LOG_ERR, "store: Failed to create %s '%s': %s",
TYPE_TO_NAME(type), name,
sdb_strerror(errno, errbuf, sizeof(errbuf)));
- pthread_rwlock_unlock(&obj_lock);
+ free(parent_cname);
+ free(cname);
return -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);
/* pass control to the list or destroy in case of an error */
sdb_object_deref(SDB_OBJ(new));
- }
- pthread_rwlock_unlock(&obj_lock);
+ if (updated_obj)
+ *updated_obj = new;
+ }
+ free(parent_cname);
+ free(cname);
return status;
-} /* sdb_store_obj */
+} /* store_obj */
+
+/*
+ * 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_llist_t *list, int type, sdb_strbuf_t *buf)
+{
+ sdb_llist_iter_t *iter;
+ char time_str[64];
+
+ assert((type == SDB_ATTRIBUTE) || (type == SDB_SERVICE));
+
+ sdb_strbuf_append(buf, "[");
+
+ iter = sdb_llist_get_iter(list);
+ if (! iter) {
+ char errbuf[1024];
+ sdb_log(SDB_LOG_ERR, "store: Failed to retrieve %ss: %s\n",
+ 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);
+ }
+
+ /* 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));
+ assert(sobj);
+
+ 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';
+
+ 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),
+ SDB_DOUBLE_QUOTED);
+ sdb_strbuf_append(buf, "\"value\": %s, \"last_update\": \"%s\"}",
+ tmp, time_str);
+ }
+ else
+ sdb_strbuf_append(buf, "\"last_update\": \"%s\"}", time_str);
+
+ if (sdb_llist_iter_has_next(iter))
+ sdb_strbuf_append(buf, ",");
+ }
+
+ sdb_llist_iter_destroy(iter);
+ sdb_strbuf_append(buf, "]");
+} /* store_obj_tojson */
/*
* public API
*/
+void
+sdb_store_clear(void)
+{
+ sdb_llist_destroy(obj_list);
+ obj_list = NULL;
+} /* sdb_store_clear */
+
int
sdb_store_host(const char *name, sdb_time_t last_update)
{
- char *cname;
- int status = 0;
+ int status;
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(&obj_lock);
status = store_obj(/* parent = */ 0, NULL,
- /* stored object = */ SDB_HOST, cname, last_update);
- free(cname);
+ /* stored object = */ SDB_HOST, name, last_update,
+ /* updated_obj = */ NULL);
+ pthread_rwlock_unlock(&obj_lock);
return status;
} /* sdb_store_host */
if (! name)
return NULL;
- host = sdb_store_lookup(SDB_HOST, name);
+ host = store_lookup(SDB_HOST, name);
return host != NULL;
} /* sdb_store_has_host */
-int
-sdb_store_attribute(const char *hostname, const char *key, const char *value,
- sdb_time_t last_update)
+sdb_store_base_t *
+sdb_store_get_host(const char *name)
{
- sdb_store_obj_t *sobj;
- sdb_attribute_t *old;
+ sdb_store_obj_t *host;
- int status = 0;
+ if (! name)
+ return NULL;
- if ((! hostname) || (! key))
- return -1;
+ host = store_lookup(SDB_HOST, name);
+ if (! host)
+ return NULL;
- if (last_update <= 0)
- last_update = sdb_gettime();
+ sdb_object_ref(SDB_OBJ(host));
+ return STORE_BASE(host);
+} /* sdb_store_get_host */
- if (! obj_list)
- return -1;
+int
+sdb_store_attribute(const char *hostname,
+ const char *key, const sdb_data_t *value,
+ sdb_time_t last_update)
+{
+ int status;
- pthread_rwlock_wrlock(&obj_lock);
+ sdb_store_base_t *updated_attr = NULL;
- sobj = sdb_store_lookup(SDB_HOST, hostname);
- if (! sobj) {
- pthread_rwlock_unlock(&obj_lock);
+ if ((! hostname) || (! key))
return -1;
- }
- old = SDB_ATTR(sdb_llist_search_by_name(sobj->attributes, key));
- if (old) {
- if (old->_last_update > last_update) {
- sdb_log(SDB_LOG_DEBUG, "store: Cannot update attribute "
- "'%s/%s' - value too old (%"PRIscTIME" < %"PRIscTIME")",
- hostname, key, last_update, old->_last_update);
- status = 1;
- }
- else {
- old->_last_update = last_update;
+ 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;
}
}
- else {
- sdb_attribute_t *new = SDB_ATTR(sdb_object_create(key,
- sdb_attribute_type, value));
- if (! new) {
- char errbuf[1024];
- sdb_log(SDB_LOG_ERR, "store: Failed to clone attribute "
- "object: %s", sdb_strerror(errno, errbuf, sizeof(errbuf)));
- pthread_rwlock_unlock(&obj_lock);
- return -1;
- }
-
- status = sdb_llist_insert_sorted(sobj->attributes, SDB_OBJ(new),
- sdb_object_cmp_by_name);
-
- /* pass control to the list or destroy in case of an error */
- sdb_object_deref(SDB_OBJ(new));
- }
pthread_rwlock_unlock(&obj_lock);
return status;
sdb_store_service(const char *hostname, const char *name,
sdb_time_t last_update)
{
+ int status;
+
if ((! hostname) || (! name))
return -1;
- return store_obj(/* parent = */ SDB_HOST, hostname,
- /* stored object = */ SDB_SERVICE, name, last_update);
+
+ 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);
+ return status;
} /* sdb_store_service */
-/* TODO: actually support hierarchical data */
int
-sdb_store_dump(FILE *fh)
+sdb_store_host_tojson(sdb_store_base_t *h, sdb_strbuf_t *buf, int flags)
+{
+ sdb_store_obj_t *host;
+ char time_str[64];
+
+ if ((! h) || (h->type != SDB_HOST) || (! buf))
+ return -1;
+
+ host = SDB_STORE_OBJ(h);
+
+ 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';
+
+ sdb_strbuf_append(buf, "{\"name\": \"%s\", "
+ "\"last_update\": \"%s\"",
+ SDB_OBJ(host)->name, time_str);
+
+ if (! (flags & SDB_SKIP_ATTRIBUTES)) {
+ sdb_strbuf_append(buf, ", \"attributes\": ");
+ store_obj_tojson(host->attributes, SDB_ATTRIBUTE, buf);
+ }
+
+ if (! (flags & SDB_SKIP_SERVICES)) {
+ sdb_strbuf_append(buf, ", \"services\": ");
+ store_obj_tojson(host->children, SDB_SERVICE, buf);
+ }
+
+ sdb_strbuf_append(buf, "}");
+ return 0;
+} /* sdb_store_host_tojson */
+
+int
+sdb_store_tojson(sdb_strbuf_t *buf, int flags)
{
sdb_llist_iter_t *host_iter;
- if (! fh)
+ if (! buf)
return -1;
pthread_rwlock_rdlock(&obj_lock);
return -1;
}
- while (sdb_llist_iter_has_next(host_iter)) {
- sdb_store_obj_t *host = SDB_STORE_OBJ(sdb_llist_iter_get_next(host_iter));
- sdb_llist_iter_t *svc_iter;
- sdb_llist_iter_t *attr_iter;
-
- char time_str[64];
+ 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));
assert(host);
- 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';
-
- fprintf(fh, "Host '%s' (last updated: %s):\n",
- SDB_OBJ(host)->name, time_str);
-
- attr_iter = sdb_llist_get_iter(host->attributes);
- if (! attr_iter) {
- char errbuf[1024];
- fprintf(fh, "Failed to retrieve attributes: %s\n",
- sdb_strerror(errno, errbuf, sizeof(errbuf)));
- continue;
- }
+ if (sdb_store_host_tojson(host, buf, flags))
+ return -1;
- while (sdb_llist_iter_has_next(attr_iter)) {
- sdb_attribute_t *attr = SDB_ATTR(sdb_llist_iter_get_next(attr_iter));
- assert(attr);
+ if (sdb_llist_iter_has_next(host_iter))
+ sdb_strbuf_append(buf, ",");
+ }
- if (! sdb_strftime(time_str, sizeof(time_str),
- "%F %T %z", attr->_last_update))
- snprintf(time_str, sizeof(time_str), "<error>");
- time_str[sizeof(time_str) - 1] = '\0';
+ sdb_strbuf_append(buf, "]}");
- fprintf(fh, "\tAttribute '%s' -> '%s' (last updated: %s)\n",
- SDB_OBJ(attr)->name, attr->value, time_str);
- }
+ sdb_llist_iter_destroy(host_iter);
+ pthread_rwlock_unlock(&obj_lock);
+ return 0;
+} /* sdb_store_tojson */
- sdb_llist_iter_destroy(attr_iter);
+/* TODO: actually support hierarchical data */
+int
+sdb_store_iterate(sdb_store_iter_cb cb, void *user_data)
+{
+ sdb_llist_iter_t *host_iter;
+ int status = 0;
- svc_iter = sdb_llist_get_iter(host->children);
- if (! svc_iter) {
- char errbuf[1024];
- fprintf(fh, "Failed to retrieve services: %s\n",
- sdb_strerror(errno, errbuf, sizeof(errbuf)));
- continue;
- }
+ pthread_rwlock_rdlock(&obj_lock);
- while (sdb_llist_iter_has_next(svc_iter)) {
- sdb_store_obj_t *svc = SDB_STORE_OBJ(sdb_llist_iter_get_next(svc_iter));
- assert(svc);
+ host_iter = sdb_llist_get_iter(obj_list);
+ if (! host_iter)
+ status = -1;
- if (! sdb_strftime(time_str, sizeof(time_str),
- "%F %T %z", svc->_last_update))
- snprintf(time_str, sizeof(time_str), "<error>");
- time_str[sizeof(time_str) - 1] = '\0';
+ /* has_next returns false if the iterator is NULL */
+ while (sdb_llist_iter_has_next(host_iter)) {
+ sdb_store_base_t *host = STORE_BASE(sdb_llist_iter_get_next(host_iter));
+ assert(host);
- fprintf(fh, "\tService '%s' (last updated: %s)\n",
- SDB_OBJ(svc)->name, time_str);
+ if (cb(host, user_data)) {
+ status = -1;
+ break;
}
-
- sdb_llist_iter_destroy(svc_iter);
}
sdb_llist_iter_destroy(host_iter);
pthread_rwlock_unlock(&obj_lock);
- return 0;
-} /* sdb_store_dump */
+ return status;
+} /* sdb_store_iterate */
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */