-
- }
- }
-}
-
-/*
- * Add the loglevel to the loglevel hash table. Must be called with
- * ust lock held.
- */
-struct loglevel_entry *add_loglevel(const char *name,
- struct ltt_channel *chan,
- struct lttng_ust_event *event_param)
-{
- struct cds_hlist_head *head;
- struct cds_hlist_node *node;
- struct loglevel_entry *e;
- size_t name_len = strlen(name) + 1;
- uint32_t hash = jhash(name, name_len-1, 0);
-
- head = &loglevel_table[hash & (LOGLEVEL_TABLE_SIZE - 1)];
- cds_hlist_for_each_entry(e, node, head, hlist) {
- if (!strcmp(name, e->name)) {
- DBG("loglevel %s busy", name);
- return ERR_PTR(-EEXIST); /* Already there */
- }
- }
- /*
- * Using zmalloc here to allocate a variable length element. Could
- * cause some memory fragmentation if overused.
- */
- e = zmalloc(sizeof(struct loglevel_entry) + name_len);
- if (!e)
- return ERR_PTR(-ENOMEM);
- memcpy(&e->name[0], name, name_len);
- e->chan = chan;
- e->enabled = 1;
- memcpy(&e->event_param, event_param, sizeof(e->event_param));
- cds_hlist_add_head(&e->hlist, head);
- CDS_INIT_LIST_HEAD(&e->events);
- _probes_create_loglevel_events(e);
- cds_list_add(&e->list, &chan->session->loglevels);
- return e;
-}
-
-/*
- * Remove the loglevel from the loglevel hash table. Must be called with
- * ust_lock held. Only called at session teardown.
- */
-void _remove_loglevel(struct loglevel_entry *loglevel)
-{
- struct ltt_event *ev, *tmp;
-
- /*
- * Just remove the events owned (for enable/disable) by this
- * loglevel from the list. The session teardown will take care
- * of freeing the event memory.
- */
- cds_list_for_each_entry_safe(ev, tmp, &loglevel->events, list) {
- cds_list_del(&ev->list);
- }
- cds_hlist_del(&loglevel->hlist);
- cds_list_del(&loglevel->list);
- free(loglevel);
-}
-
-int ltt_loglevel_enable(struct loglevel_entry *loglevel)
-{
- struct ltt_event *ev;
- int ret;
-
- if (loglevel->enabled)
- return -EEXIST;
- cds_list_for_each_entry(ev, &loglevel->events, list) {
- ret = ltt_event_enable(ev);
- if (ret) {
- DBG("Error: enable error.\n");
- return ret;