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>

1 files changed, 2 insertions, 9 deletions

diff --git a/include/sqfs/dir_writer.h b/include/sqfs/dir_writer.h
index 05d054b..e4a26c7 100644
--- a/include/sqfs/dir_writer.h
+++ b/include/sqfs/dir_writer.h
@@ -31,6 +31,8 @@
 /**
  * @struct sqfs_dir_writer_t
  *
+ * @implements sqfs_object_t
+ *
  * @brief Abstracts generating of directory entries
  *
  * SquashFS stores directory entries and inodes separated from each other. The
@@ -102,15 +104,6 @@ SQFS_API sqfs_dir_writer_t *sqfs_dir_writer_create(sqfs_meta_writer_t *dm,
 						   sqfs_u32 flags);
 
 /**
- * @brief Destroy a directory writer and free all its memory.
- *
- * @memberof sqfs_dir_writer_t
- *
- * @param writer A pointer to a directory writer object.
- */
-SQFS_API void sqfs_dir_writer_destroy(sqfs_dir_writer_t *writer);
-
-/**
  * @brief Begin writing a directory, i.e. reset and initialize all internal
  *        state neccessary.
  *