contention - it cannot guarantee how many records will be locked */
_PUBLIC_ enum TDB_ERROR tdb_chainlock(struct tdb_context *tdb, TDB_DATA key)
{
- if (tdb->flags & TDB_VERSION1) {
- if (tdb1_chainlock(tdb, key) == -1)
- return tdb->last_error;
- return TDB_SUCCESS;
- }
return tdb->last_error = chainlock(tdb, &key, F_WRLCK, TDB_LOCK_WAIT,
"tdb_chainlock");
}
tdb_off_t lockstart, locksize;
unsigned int group, gbits;
- if (tdb->flags & TDB_VERSION1) {
- tdb1_chainunlock(tdb, key);
- return;
- }
-
gbits = TDB_TOPLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS;
group = bits_from(h, 64 - gbits, gbits);
_PUBLIC_ enum TDB_ERROR tdb_chainlock_read(struct tdb_context *tdb, TDB_DATA key)
{
- if (tdb->flags & TDB_VERSION1) {
- if (tdb1_chainlock_read(tdb, key) == -1)
- return tdb->last_error;
- return TDB_SUCCESS;
- }
return tdb->last_error = chainlock(tdb, &key, F_RDLCK, TDB_LOCK_WAIT,
"tdb_chainlock_read");
}
tdb_off_t lockstart, locksize;
unsigned int group, gbits;
- if (tdb->flags & TDB_VERSION1) {
- tdb1_chainunlock_read(tdb, key);
- return;
- }
gbits = TDB_TOPLEVEL_HASH_BITS - TDB_HASH_GROUP_BITS;
group = bits_from(h, 64 - gbits, gbits);