commit 9a0a03d

New function object_del_if_unref().

 1@@ -552,6 +552,20 @@ int object_del(const char *id)
 2 }
 3 
 4 
 5+int object_del_if_unref(const char *id)
 6+/* deletes an object if its n_links < 2 */
 7+{
 8+    xs *fn = _object_fn(id);
 9+    int n_links;
10+    int ret = 0;
11+
12+    if (mtime_nl(fn, &n_links) > 0.0 && n_links < 2)
13+        ret = object_del(id);
14+
15+    return ret;
16+}
17+
18+
19 d_char *object_children(const char *id)
20 /* returns the list of an object's children */
21 {
22@@ -791,8 +805,8 @@ int timeline_del(snac *snac, char *id)
23     object_user_cache_del(snac, id, "public");
24     object_user_cache_del(snac, id, "private");
25 
26-    /* NOTE: this is a good place to count the # of links
27-       of the object and object_del() it if it's < 2 */
28+    /* try to delete the object if it's not used elsewhere */
29+    object_del_if_unref(id);
30 
31     return ret;
32 }

1@@ -60,6 +60,7 @@ d_char *index_list(const char *fn, int max);
2 d_char *index_list_desc(const char *fn, int max);
3 
4 int object_del(const char *id);
5+int object_del_if_unref(const char *id);
6 
7 int follower_add(snac *snac, char *actor, char *msg);
8 int follower_del(snac *snac, char *actor);