+ if (*info == sizeof(pos))
+ {
+ memcpy (&pos, info+1, sizeof(pos));
+ isamb_unlink(zh->reg->isamb, pos);
+ }
+ return 0;
+}
+
+static int delete_SU_handle(void *handle, int ord)
+{
+ ZebraHandle zh = (ZebraHandle) handle;
+ char ord_buf[20];
+ int ord_len;
+
+ ord_len = key_SU_encode (ord, ord_buf);
+ ord_buf[ord_len] = '\0';
+
+ assert (zh->reg->isamb);
+ dict_delete_subtree(zh->reg->dict, ord_buf,
+ zh, delete_w_handle);
+ return 0;
+}
+
+ZEBRA_RES zebra_drop_database(ZebraHandle zh, const char *db)
+{
+ ZEBRA_RES ret = ZEBRA_OK;
+
+ yaz_log(log_level, "zebra_drop_database %s", db);
+ ZEBRA_CHECK_HANDLE(zh);
+
+ if (zebra_select_database (zh, db) == ZEBRA_FAIL)
+ return ZEBRA_FAIL;
+ if (zebra_begin_trans (zh, 1) == ZEBRA_FAIL)
+ return ZEBRA_FAIL;
+ if (zh->reg->isamb)
+ {
+ int db_ord;
+ if (zebraExplain_curDatabase (zh->reg->zei, db))
+ {
+ zebra_setError(zh, YAZ_BIB1_DATABASE_DOES_NOT_EXIST, db);
+ ret = ZEBRA_FAIL;
+ }
+ else
+ {
+ db_ord = zebraExplain_get_database_ord(zh->reg->zei);
+ dict_delete_subtree_ord(zh->reg->matchDict, db_ord,
+ 0 /* handle */, 0 /* func */);
+ zebraExplain_trav_ord(zh->reg->zei, zh, delete_SU_handle);
+ zebraExplain_removeDatabase(zh->reg->zei, zh);
+ zebra_remove_file_match(zh);
+ }
+ }
+ else
+ {
+ yaz_log(YLOG_WARN, "drop database only supported for isam:b");
+ zebra_setError(zh, YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED,
+ "drop database only supported for isam:b");
+ ret = ZEBRA_FAIL;
+ }
+ if (zebra_end_trans (zh) != ZEBRA_OK)
+ {
+ yaz_log(YLOG_WARN, "zebra_end_trans failed");
+ ret = ZEBRA_FAIL;
+ }
+ return ret;
+}
+
+ZEBRA_RES zebra_create_database (ZebraHandle zh, const char *db)
+{
+ yaz_log(log_level, "zebra_create_database %s", db);
+ ZEBRA_CHECK_HANDLE(zh);
+ assert(db);
+
+ if (zebra_select_database (zh, db) == ZEBRA_FAIL)
+ return ZEBRA_FAIL;
+ if (zebra_begin_trans (zh, 1))
+ return ZEBRA_FAIL;