libalpm/db.c : add alpm_db_unregister_all.

This basically moves the code from alpm_release, which was mostly about
unregistering all databases, to a safer alpm_db_unregister_all.
This allows to avoid modifying the dbs_sync list while iterating over it,
and and also prevent alpm_release from looping infinitely when a database
can't be unregistered.

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/libalpm/db.h b/lib/libalpm/db.h
index 2597c8c4..d31bf60e 100644
--- a/lib/libalpm/db.h
+++ b/lib/libalpm/db.h
@@ -53,6 +53,7 @@ void _alpm_db_free(pmdb_t *db);
 int _alpm_db_cmp(const void *db1, const void *db2);
 alpm_list_t *_alpm_db_search(pmdb_t *db, const alpm_list_t *needles);
 pmdb_t *_alpm_db_register(const char *treename);
+void _alpm_db_unregister(pmdb_t *db);
 
 /* be.c, backend specific calls */
 int _alpm_db_install(pmdb_t *db, const char *dbfile);