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/meta_writer.h b/include/sqfs/meta_writer.h
index cf8e16c..be151cc 100644
--- a/include/sqfs/meta_writer.h
+++ b/include/sqfs/meta_writer.h
@@ -31,6 +31,8 @@
 /**
  * @struct sqfs_meta_writer_t
  *
+ * @implements sqfs_object_t
+ *
  * @brief Abstracts generating of meta data blocks, either in memory or
  *        directly on disk.
  *
@@ -88,15 +90,6 @@ SQFS_API sqfs_meta_writer_t *sqfs_meta_writer_create(sqfs_file_t *file,
 						     sqfs_u32 flags);
 
 /**
- * @brief Destroy a meta data writer and free all memory used by it.
- *
- * @memberof sqfs_meta_writer_t
- *
- * @param m A pointer to a meta data writer.
- */
-SQFS_API void sqfs_meta_writer_destroy(sqfs_meta_writer_t *m);
-
-/**
  * @brief Finish the current block, even if it isn't full yet.
  *
  * @memberof sqfs_meta_writer_t