diff options
Diffstat (limited to 'src/afb-apiset.c')
| -rw-r--r-- | src/afb-apiset.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/afb-apiset.c b/src/afb-apiset.c index f837fae7..6229b371 100644 --- a/src/afb-apiset.c +++ b/src/afb-apiset.c @@ -427,17 +427,23 @@ struct afb_apiset *afb_apiset_subset_get(struct afb_apiset *set) * Set the subset of the set * @param set the api set * @param subset the subset to set + * + * @return 0 in case of success or -1 if it had created a loop */ -void afb_apiset_subset_set(struct afb_apiset *set, struct afb_apiset *subset) +int afb_apiset_subset_set(struct afb_apiset *set, struct afb_apiset *subset) { struct afb_apiset *tmp; - if (subset == set) { - /* avoid infinite loop */ - subset = NULL; - } + + /* avoid infinite loop */ + for (tmp = subset ; tmp ; tmp = tmp->subset) + if (tmp == set) + return -1; + tmp = set->subset; set->subset = afb_apiset_addref(subset); afb_apiset_unref(tmp); + + return 0; } void afb_apiset_onlack_set(struct afb_apiset *set, int (*callback)(void*, struct afb_apiset*, const char*), void *closure, void (*cleanup)(void*)) |