diff --git a/src/utils/llist.c b/src/utils/llist.c
index 0a4665d09296c2387bcf1f369f81f5e751c20fa4..f009bcdac43cd30b3ccd51c0d79f953018f16e04 100644 (file)
--- a/src/utils/llist.c
+++ b/src/utils/llist.c
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif /* HAVE_CONFIG_H */
+
#include "utils/llist.h"
#include <assert.h>
#include "utils/llist.h"
#include <assert.h>
return status;
} /* sdb_llist_insert_sorted */
return status;
} /* sdb_llist_insert_sorted */
+sdb_object_t *
+sdb_llist_get(sdb_llist_t *list, size_t i)
+{
+ sdb_llist_elem_t *elem;
+ size_t j;
+
+ if ((! list) || (i >= list->length))
+ return NULL;
+
+ for (elem = list->head, j = 0; j < i; elem = elem->next, ++j)
+ /* iterate */;
+
+ assert(elem);
+ sdb_object_ref(elem->obj);
+ return elem->obj;
+} /* sdb_llist_get */
+
sdb_object_t *
sdb_llist_search(sdb_llist_t *list,
sdb_llist_lookup_cb lookup, const void *user_data)
sdb_object_t *
sdb_llist_search(sdb_llist_t *list,
sdb_llist_lookup_cb lookup, const void *user_data)
pthread_rwlock_rdlock(&iter->list->lock);
pthread_rwlock_rdlock(&iter->list->lock);
+ /* XXX: increment ref-cnt for this object?
+ * also: when letting an element take ownership of next and prev
+ * elements, this might be a fairly cheap way to implement a weak
+ * type of snapshotting */
+
obj = iter->elem->obj;
iter->elem = iter->elem->next;
obj = iter->elem->obj;
iter->elem = iter->elem->next;
return 0;
} /* sdb_llist_iter_remove */
return 0;
} /* sdb_llist_iter_remove */
+size_t
+sdb_llist_len(sdb_llist_t *list)
+{
+ if (! list)
+ return 0;
+ return list->length;
+} /* sdb_llist_len */
+
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */
/* vim: set tw=78 sw=4 ts=4 noexpandtab : */