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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2020-02-12 02:22:31 +0100
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2020-02-12 02:26:24 +0100
commit303680ebcd5adaac2934b63a0edc2d9d1a36d7fb (patch)
treebd2012dc6fa56f7259dbe2e5edd7ab3042f8e0a0 /lib/sqfs/id_table.c
parentec7a522a520017327dd73b4d8e3787016ee1a31e (diff)
Implement a more explicit object system
Make every dynamically allocated, opaque data structure inherit from a common sqfs_object_t structure with common entry points (e.g. destroy). This removes tons of public API functions and replaces them with a simple sqfs_destroy instead. If semantics of the (until now implicit) object system need to be extended, it can be much more conveniantely done this way. Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'lib/sqfs/id_table.c')
-rw-r--r--lib/sqfs/id_table.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/lib/sqfs/id_table.c b/lib/sqfs/id_table.c
index 8c30964..86f2809 100644
--- a/lib/sqfs/id_table.c
+++ b/lib/sqfs/id_table.c
@@ -17,23 +17,35 @@
#include <string.h>
struct sqfs_id_table_t {
+ sqfs_object_t base;
+
sqfs_u32 *ids;
size_t num_ids;
size_t max_ids;
};
+static void id_table_destroy(sqfs_object_t *obj)
+{
+ sqfs_id_table_t *tbl = (sqfs_id_table_t *)obj;
+
+ free(tbl->ids);
+ free(tbl);
+}
+
sqfs_id_table_t *sqfs_id_table_create(sqfs_u32 flags)
{
+ sqfs_id_table_t *tbl;
+
if (flags != 0)
return NULL;
- return calloc(1, sizeof(sqfs_id_table_t));
-}
+ tbl = calloc(1, sizeof(sqfs_id_table_t));
-void sqfs_id_table_destroy(sqfs_id_table_t *tbl)
-{
- free(tbl->ids);
- free(tbl);
+ if (tbl != NULL) {
+ ((sqfs_object_t *)tbl)->destroy = id_table_destroy;
+ }
+
+ return tbl;
}
int sqfs_id_table_id_to_index(sqfs_id_table_t *tbl, sqfs_u32 id, sqfs_u16 *out)