diff options
Diffstat (limited to 'src/common/db.h')
| -rw-r--r-- | src/common/db.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/common/db.h b/src/common/db.h index c1b224bcd..e02de2e08 100644 --- a/src/common/db.h +++ b/src/common/db.h @@ -360,6 +360,15 @@ struct DBMap { DBIterator* (*iterator)(DBMap* self); /** + * Returns true if the entry exists. + * @param self Database + * @param key Key that identifies the entry + * @return true is the entry exists + * @protected + */ + bool (*exists)(DBMap* self, DBKey key); + + /** * Get the data of the entry identifid by the key. * @param self Database * @param key Key that identifies the entry @@ -580,6 +589,11 @@ struct DBMap { # define str2key(k) ((DBKey)(const char *)(k)) #endif /* not DB_MANUAL_CAST_TO_UNION */ +#define db_exists(db,k) ( (db)->exists((db),(k)) ) +#define idb_exists(db,k) ( (db)->exists((db),i2key(k)) ) +#define uidb_exists(db,k) ( (db)->exists((db),ui2key(k)) ) +#define strdb_exists(db,k) ( (db)->exists((db),str2key(k)) ) + #define db_get(db,k) ( (db)->get((db),(k)) ) #define idb_get(db,k) ( (db)->get((db),i2key(k)) ) #define uidb_get(db,k) ( (db)->get((db),ui2key(k)) ) |