/* ------------------------ */
cnid_t cnid_cdb_rebuild_add(struct _cnid_db *cdb, const struct stat *st,
const cnid_t did, char *name, const size_t len,
cnid_t hint)
{
CNID_private *db;
DBT key, data;
int rc;
if (!cdb || !(db = cdb->_private) || !st || !name || hint == CNID_INVALID || hint < CNID_START) {
errno = CNID_ERR_PARAM;
return CNID_INVALID;
}
#if 0
/* FIXME: Bjoern does a lookup. Should we not overwrite unconditionally? */
/* Do a lookup. */
id = cnid_cdb_lookup(cdb, st, did, name, len);
/* ... Return id if it is valid, or if Rootinfo is read-only. */
if (id || (db->flags & CNIDFLAG_DB_RO)) {
#ifdef DEBUG
LOG(log_debug9, logtype_default, "cnid_add: Looked up did %u, name %s as %u", ntohl(did), name, ntohl(id));
#endif
return id;
}
#endif
/* Initialize our DBT data structures. */
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
if ((data.data = make_cnid_data(cdb->flags, st, did, name, len)) == NULL) {
LOG(log_error, logtype_default, "cnid_add: Path name is too long");
errno = CNID_ERR_PATH;
return CNID_INVALID;
}
data.size = CNID_HEADER_LEN + len + 1;
memcpy(data.data, &hint, sizeof(hint));
key.data = &hint;
key.size = sizeof(hint);
/* Now we need to add the CNID data to the databases. */
if ((rc = db->db_cnid->put(db->db_cnid, tid, &key, &data, 0))) {
LOG(log_error, logtype_default
, "cnid_add: Failed to add CNID for %s to database using hint %u: %s",
name, ntohl(hint), db_strerror(rc));
errno = CNID_ERR_DB;
goto cleanup;
}
if (set_max_cnid(db, hint) == CNID_INVALID) {
errno = CNID_ERR_DB;
goto cleanup;
}
#ifdef DEBUG
LOG(log_debug9, logtype_default, "cnid_add: Returned CNID for did %u, name %s as %u", ntohl(did), name, ntohl(hint));
#endif
return hint;
cleanup:
return CNID_INVALID;
}
/* ------------------------ */
cnid_t cnid_cdb_add(struct _cnid_db *cdb, const struct stat *st,
cnid_t did, const char *name, size_t len, cnid_t hint)
{
CNID_private *db;
DBT key, data;
cnid_t id;
int rc;
if (!cdb || !(db = cdb->_private) || !st || !name) {
errno = CNID_ERR_PARAM;
return CNID_INVALID;
}
/* Do a lookup. */
id = cnid_cdb_lookup(cdb, st, did, name, len);
/* ... Return id if it is valid, or if Rootinfo is read-only. */
if (id || (db->flags & CNIDFLAG_DB_RO)) {
#ifdef DEBUG
LOG(log_debug9, logtype_default, "cnid_add: Looked up did %u, name %s as %u", ntohl(did), name, ntohl(id));
#endif
return id;
}
/* Initialize our DBT data structures. */
memset(&key, 0, sizeof(key));
memset(&data, 0, sizeof(data));
if ((data.data = make_cnid_data(cdb->flags, st, did, name, len)) == NULL) {
LOG(log_error, logtype_default, "cnid_add: Path name is too long");
errno = CNID_ERR_PATH;
return CNID_INVALID;
}
data.size = CNID_HEADER_LEN + len + 1;
if ((hint = get_cnid(db)) == 0) {
errno = CNID_ERR_DB;
return CNID_INVALID;
}
memcpy(data.data, &hint, sizeof(hint));
key.data = &hint;
key.size = sizeof(hint);
/* Now we need to add the CNID data to the databases. */
if ((rc = db->db_cnid->put(db->db_cnid, tid, &key, &data, DB_NOOVERWRITE))) {
if (rc == EINVAL) {
/* if we have a duplicate
* on cnid it's a fatal error.
* on dev:inode
* - leftover should have been delete before.
* - a second process already updated the db
* - it's a new file eg our file is already deleted and replaced
* on did:name leftover
*/
if (cnid_cdb_update(cdb, hint, st, did, name, len)) {
errno = CNID_ERR_DB;
return CNID_INVALID;
}
}
else {
LOG(log_error, logtype_default
, "cnid_add: Failed to add CNID for %s to database using hint %u: %s",
name, ntohl(hint), db_strerror(rc));
errno = CNID_ERR_DB;
return CNID_INVALID;
}
}
#ifdef DEBUG
LOG(log_debug9, logtype_default, "cnid_add: Returned CNID for did %u, name %s as %u", ntohl(did), name, ntohl(hint));
#endif
return hint;
}
