void ListMgr_FreeAttrs( attr_set_t * p_set )
{
int i;
int mask = 1;
/* Free stripe count attributes */
for ( i = 0; i < ATTR_COUNT; i++, mask <<= 1 )
{
if ( ( field_infos[i].db_type == DB_STRIPE_ITEMS ) && ( p_set->attr_mask & mask ) )
{
free_stripe_items( ( stripe_items_t * ) ( ( char * ) &p_set->attr_values +
field_infos[i].offset ) );
}
}
}
int get_stripe_info(lmgr_t *p_mgr, PK_ARG_T pk, stripe_info_t *p_stripe_info,
stripe_items_t *p_items)
{
/* stripe_count, stripe_size, pool_name, validator => 4 */
#define STRIPE_INFO_COUNT 4
char *res[STRIPE_INFO_COUNT];
result_handle_t result;
int i;
int rc = DB_SUCCESS;
GString *req;
/* retrieve basic stripe info */
req =
g_string_new
("SELECT stripe_count, stripe_size, pool_name,validator FROM "
STRIPE_INFO_TABLE " WHERE id=");
g_string_append_printf(req, DPK, pk);
rc = db_exec_sql(&p_mgr->conn, req->str, &result);
if (rc)
goto out;
rc = db_next_record(&p_mgr->conn, &result, res, STRIPE_INFO_COUNT);
if (rc == DB_END_OF_LIST)
rc = DB_NOT_EXISTS;
if (rc)
goto res_free;
for (i = 0; i < STRIPE_INFO_COUNT; i++) {
DisplayLog(LVL_FULL, LISTMGR_TAG, "stripe_res[%u] = %s", i,
res[i] ? res[i] : "<null>");
if (res[i] == NULL) {
rc = DB_ATTR_MISSING;
goto res_free;
}
}
p_stripe_info->stripe_count = atoi(res[0]);
p_stripe_info->stripe_size = atoi(res[1]);
rh_strncpy(p_stripe_info->pool_name, res[2], MAX_POOL_LEN);
#ifdef HAVE_LLAPI_FSWAP_LAYOUTS
p_stripe_info->validator = atoi(res[3]);
#endif
db_result_free(&p_mgr->conn, &result);
if (p_items) {
/* retrieve stripe list */
g_string_printf(req, "SELECT stripe_index,ostidx,details FROM "
STRIPE_ITEMS_TABLE " WHERE id=" DPK
" ORDER BY stripe_index ASC", pk);
rc = db_exec_sql(&p_mgr->conn, req->str, &result);
if (rc)
goto out;
#ifndef _LUSTRE_HSM
/* this is abnormal if LUSTRE/HSM feature is not present */
if (p_stripe_info->stripe_count !=
db_result_nb_records(&p_mgr->conn, &result)) {
DisplayLog(LVL_MAJOR, LISTMGR_TAG,
"Warning: the number of stripe items (%d) doesn't match stripe count (%u)! (Pk="
DPK ")", db_result_nb_records(&p_mgr->conn, &result),
p_stripe_info->stripe_count, pk);
}
#endif
p_items->count = db_result_nb_records(&p_mgr->conn, &result);
if (p_items->count > 0) {
/* allocate stripe array */
p_items->stripe = MemCalloc(p_items->count, sizeof(stripe_item_t));
if (!p_items->stripe) {
rc = DB_NO_MEMORY;
goto res_free;
}
/* fill stripe units */
for (i = 0; i < p_items->count; i++) {
rc = db_next_record(&p_mgr->conn, &result, res,
STRIPE_INFO_COUNT);
if (rc)
goto stripe_free;
if (res[0] == NULL) {
rc = DB_ATTR_MISSING;
goto stripe_free;
}
if (i != atoi(res[0])) {
DisplayLog(LVL_MAJOR, LISTMGR_TAG,
"Warning: inconsistent stripe order: stripe %s returned in position %u",
res[0], i);
}
p_items->stripe[i].ost_idx = atoi(res[1]);
/* raw copy of binary buffer (last 3 fields of stripe_item_t
* = address of ost_gen field) */
memcpy(&p_items->stripe[i].ost_gen, res[2], STRIPE_DETAIL_SZ);
}
} else
p_items->stripe = NULL;
/* last query result must be freed */
rc = DB_SUCCESS;
goto res_free;
}
rc = DB_SUCCESS;
/* result is already freed */
goto out;
stripe_free:
free_stripe_items(p_items);
res_free:
db_result_free(&p_mgr->conn, &result);
out:
g_string_free(req, TRUE);
return rc;
}
