diff options
| -rw-r--r-- | include/rule.h | 3 | ||||
| -rw-r--r-- | src/rule.c | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/rule.h b/include/rule.h index adff92fb..4e688794 100644 --- a/include/rule.h +++ b/include/rule.h @@ -76,6 +76,7 @@ enum table_flags { * @chains: chains contained in the table * @sets: sets contained in the table * @flags: table flags + * @refcnt: table reference counter */ struct table { struct list_head list; @@ -85,9 +86,11 @@ struct table { struct list_head chains; struct list_head sets; enum table_flags flags; + unsigned int refcnt; }; extern struct table *table_alloc(void); +extern struct table *table_get(struct table *table); extern void table_free(struct table *table); extern void table_add_hash(struct table *table); extern struct table *table_lookup(const struct handle *h); @@ -588,6 +588,8 @@ struct table *table_alloc(void) init_list_head(&table->chains); init_list_head(&table->sets); init_list_head(&table->scope.symbols); + table->refcnt = 1; + return table; } @@ -595,6 +597,8 @@ void table_free(struct table *table) { struct chain *chain, *next; + if (--table->refcnt > 0) + return; list_for_each_entry_safe(chain, next, &table->chains, list) chain_free(chain); handle_free(&table->handle); @@ -602,6 +606,12 @@ void table_free(struct table *table) xfree(table); } +struct table *table_get(struct table *table) +{ + table->refcnt++; + return table; +} + void table_add_hash(struct table *table) { list_add_tail(&table->list, &table_list); |