#include "private.h"
#include <ccan/likely/likely.h>
-int64_t tdb_traverse(struct tdb_context *tdb, tdb_traverse_func fn, void *p)
+int64_t tdb_traverse_(struct tdb_context *tdb,
+ int (*fn)(struct tdb_context *,
+ TDB_DATA, TDB_DATA, void *),
+ void *p)
{
enum TDB_ERROR ecode;
struct traverse_info tinfo;
struct tdb_data k, d;
int64_t count = 0;
+ if (tdb->flags & TDB_VERSION1) {
+ count = tdb1_traverse(tdb, fn, p);
+ if (count == -1)
+ return TDB_ERR_TO_OFF(tdb->last_error);
+ return count;
+ }
+
k.dptr = NULL;
for (ecode = first_in_hash(tdb, &tinfo, &k, &d.dsize);
ecode == TDB_SUCCESS;
count++;
if (fn && fn(tdb, k, d, p)) {
free(k.dptr);
+ tdb->last_error = TDB_SUCCESS;
return count;
}
free(k.dptr);
}
if (ecode != TDB_ERR_NOEXIST) {
- return ecode;
+ return TDB_ERR_TO_OFF(tdb->last_error = ecode);
}
+ tdb->last_error = TDB_SUCCESS;
return count;
}
{
struct traverse_info tinfo;
- return first_in_hash(tdb, &tinfo, key, NULL);
+ if (tdb->flags & TDB_VERSION1) {
+ tdb->last_error = TDB_SUCCESS;
+ *key = tdb1_firstkey(tdb);
+ /* TDB1 didn't set error for last key. */
+ if (!key->dptr && tdb->last_error == TDB_SUCCESS) {
+ tdb->last_error = TDB_ERR_NOEXIST;
+ }
+ return tdb->last_error;
+ }
+
+ return tdb->last_error = first_in_hash(tdb, &tinfo, key, NULL);
}
/* We lock twice, not very efficient. We could keep last key & tinfo cached. */
struct hash_info h;
struct tdb_used_record rec;
+ if (tdb->flags & TDB_VERSION1) {
+ struct tdb_data last_key = *key;
+ tdb->last_error = TDB_SUCCESS;
+ *key = tdb1_nextkey(tdb, last_key);
+ free(last_key.dptr);
+ /* TDB1 didn't set error for last key. */
+ if (!key->dptr && tdb->last_error == TDB_SUCCESS) {
+ tdb->last_error = TDB_ERR_NOEXIST;
+ }
+ return tdb->last_error;
+ }
+
tinfo.prev = find_and_lock(tdb, *key, F_RDLCK, &h, &rec, &tinfo);
free(key->dptr);
if (TDB_OFF_IS_ERR(tinfo.prev)) {
- return tinfo.prev;
+ return tdb->last_error = TDB_OFF_TO_ERR(tinfo.prev);
}
tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_RDLCK);
- return next_in_hash(tdb, &tinfo, key, NULL);
+ return tdb->last_error = next_in_hash(tdb, &tinfo, key, NULL);
+}
+
+static int wipe_one(struct tdb_context *tdb,
+ TDB_DATA key, TDB_DATA data, enum TDB_ERROR *ecode)
+{
+ *ecode = tdb_delete(tdb, key);
+ return (*ecode != TDB_SUCCESS);
+}
+
+enum TDB_ERROR tdb_wipe_all(struct tdb_context *tdb)
+{
+ enum TDB_ERROR ecode;
+ int64_t count;
+
+ if (tdb->flags & TDB_VERSION1) {
+ if (tdb1_wipe_all(tdb) == -1)
+ return tdb->last_error;
+ return TDB_SUCCESS;
+ }
+
+ ecode = tdb_allrecord_lock(tdb, F_WRLCK, TDB_LOCK_WAIT, false);
+ if (ecode != TDB_SUCCESS)
+ return tdb->last_error = ecode;
+
+ /* FIXME: Be smarter. */
+ count = tdb_traverse(tdb, wipe_one, &ecode);
+ if (count < 0)
+ ecode = TDB_OFF_TO_ERR(count);
+ tdb_allrecord_unlock(tdb, F_WRLCK);
+ return tdb->last_error = ecode;
}