static int db_tdb_record_destr(struct db_record* data)
{
struct db_tdb_ctx *ctx =
talloc_get_type_abort(data->private_data, struct db_tdb_ctx);
db_tdb_log_key("Unlocking", data->key);
tdb_chainunlock(ctx->wtdb->tdb, data->key);
return 0;
}
static struct db_record *db_tdb_try_fetch_locked(
struct db_context *db, TALLOC_CTX *mem_ctx, TDB_DATA key)
{
struct db_tdb_ctx *ctx = talloc_get_type_abort(db->private_data,
struct db_tdb_ctx);
db_tdb_log_key("Trying to lock", key);
if (tdb_chainlock_nonblock(ctx->wtdb->tdb, key) != 0) {
DEBUG(3, ("tdb_chainlock_nonblock failed\n"));
return NULL;
}
return db_tdb_fetch_locked_internal(db, mem_ctx, key);
}
static struct db_record *db_tdb_fetch_locked(struct db_context *db,
TALLOC_CTX *mem_ctx, TDB_DATA key)
{
struct db_tdb_ctx *ctx = talloc_get_type_abort(db->private_data,
struct db_tdb_ctx);
struct tdb_fetch_locked_state state;
db_tdb_log_key("Locking", key);
if (tdb_chainlock(ctx->wtdb->tdb, key) != 0) {
DEBUG(3, ("tdb_chainlock failed\n"));
return NULL;
}
state.mem_ctx = mem_ctx;
state.result = NULL;
tdb_parse_record(ctx->wtdb->tdb, key, db_tdb_fetchlock_parse, &state);
if (state.result == NULL) {
db_tdb_fetchlock_parse(key, tdb_null, &state);
}
if (state.result == NULL) {
tdb_chainunlock(ctx->wtdb->tdb, key);
return NULL;
}
talloc_set_destructor(state.result, db_tdb_record_destr);
state.result->private_data = talloc_reference(state.result, ctx);
state.result->store = db_tdb_store;
state.result->delete_rec = db_tdb_delete;
DEBUG(10, ("Allocated locked data 0x%p\n", state.result));
return state.result;
}