#define TDB_RECOVERY_MAGIC (0xf53bc0e7U)
#define TDB_RECOVERY_INVALID_MAGIC (0x0)
#define TDB_HASH_RWLOCK_MAGIC (0xbad1a51U)
+#define TDB_FEATURE_FLAG_MAGIC (0xbad1a52U)
#define TDB_ALIGNMENT 4
#define DEFAULT_HASH_SIZE 131
#define FREELIST_TOP (sizeof(struct tdb_header))
#define TDB_PAD_BYTE 0x42
#define TDB_PAD_U32 0x42424242
+#define TDB_SUPPORTED_FEATURE_FLAGS 0
+
/* NB assumes there is a local variable called "tdb" that is the
* current context, also takes doubly-parenthesized print-style
* argument. */
tdb_off_t sequence_number; /* used when TDB_SEQNUM is set */
uint32_t magic1_hash; /* hash of TDB_MAGIC_FOOD. */
uint32_t magic2_hash; /* hash of TDB_MAGIC. */
- tdb_off_t reserved[27];
+ uint32_t feature_flags;
+ tdb_off_t reserved[26];
};
struct tdb_lock_type {
struct tdb_lock_type allrecord_lock; /* .offset == upgradable */
int num_lockrecs;
struct tdb_lock_type *lockrecs; /* only real locks, all with count>0 */
+ int lockrecs_array_length;
+
+ tdb_off_t hdr_ofs; /* this is 0 for now */
+
enum TDB_ERROR ecode; /* error code for last tdb error */
uint32_t hash_size;
+ uint32_t feature_flags;
uint32_t flags; /* the flags passed to tdb_open */
struct tdb_traverse_lock travlocks; /* current traversal locks */
struct tdb_context *next; /* all tdbs to avoid multiple opens */
int tdb_ofs_write(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
void *tdb_convert(void *buf, uint32_t size);
int tdb_free(struct tdb_context *tdb, tdb_off_t offset, struct tdb_record *rec);
-tdb_off_t tdb_allocate(struct tdb_context *tdb, tdb_len_t length, struct tdb_record *rec);
+tdb_off_t tdb_allocate(struct tdb_context *tdb, int hash, tdb_len_t length,
+ struct tdb_record *rec);
int tdb_ofs_read(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
int tdb_ofs_write(struct tdb_context *tdb, tdb_off_t offset, tdb_off_t *d);
int tdb_lock_record(struct tdb_context *tdb, tdb_off_t off);
void *private_data);
tdb_off_t tdb_find_lock_hash(struct tdb_context *tdb, TDB_DATA key, uint32_t hash, int locktype,
struct tdb_record *rec);
+tdb_off_t tdb_find_dead(struct tdb_context *tdb, uint32_t hash,
+ struct tdb_record *r, tdb_len_t length,
+ tdb_off_t *p_last_ptr);
+int tdb_purge_dead(struct tdb_context *tdb, uint32_t hash);
void tdb_io_init(struct tdb_context *tdb);
int tdb_expand(struct tdb_context *tdb, tdb_off_t size);
tdb_off_t tdb_expand_adjust(tdb_off_t map_size, tdb_off_t size, int page_size);
uint32_t *magic1_hash, uint32_t *magic2_hash);
unsigned int tdb_old_hash(TDB_DATA *key);
size_t tdb_dead_space(struct tdb_context *tdb, tdb_off_t off);
+bool tdb_add_off_t(tdb_off_t a, tdb_off_t b, tdb_off_t *pret);
+
+/* tdb_off_t and tdb_len_t right now are both uint32_t */
+#define tdb_add_len_t tdb_add_off_t
#endif /* TDB_PRIVATE_H */