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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/dir_writer.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/dir_writer.c')
-rw-r--r--lib/sqfs/dir_writer.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/lib/sqfs/dir_writer.c b/lib/sqfs/dir_writer.c
index 53e5800..9dd7ad2 100644
--- a/lib/sqfs/dir_writer.c
+++ b/lib/sqfs/dir_writer.c
@@ -37,6 +37,8 @@ typedef struct index_ent_t {
} index_ent_t;
struct sqfs_dir_writer_t {
+ sqfs_object_t base;
+
dir_entry_t *list;
dir_entry_t *list_end;
@@ -136,6 +138,15 @@ static int add_export_table_entry(sqfs_dir_writer_t *writer,
return 0;
}
+static void dir_writer_destroy(sqfs_object_t *obj)
+{
+ sqfs_dir_writer_t *writer = (sqfs_dir_writer_t *)obj;
+
+ writer_reset(writer);
+ free(writer->export_tbl);
+ free(writer);
+}
+
sqfs_dir_writer_t *sqfs_dir_writer_create(sqfs_meta_writer_t *dm,
sqfs_u32 flags)
{
@@ -162,17 +173,11 @@ sqfs_dir_writer_t *sqfs_dir_writer_create(sqfs_meta_writer_t *dm,
sizeof(writer->export_tbl[0]) * writer->export_tbl_max);
}
+ ((sqfs_object_t *)writer)->destroy = dir_writer_destroy;
writer->dm = dm;
return writer;
}
-void sqfs_dir_writer_destroy(sqfs_dir_writer_t *writer)
-{
- writer_reset(writer);
- free(writer->export_tbl);
- free(writer);
-}
-
int sqfs_dir_writer_begin(sqfs_dir_writer_t *writer, sqfs_u32 flags)
{
sqfs_u32 offset;