// assume source stats are write locked
void stats_set (long handle, const char *name, const char *value)
{
if (handle)
{
stats_source_t *src_stats = (stats_source_t *)handle;
stats_event_t event;
build_event (&event, src_stats->source, name, (char *)value);
process_source_stat (src_stats, &event);
}
}
void stats_set_flags (long handle, const char *name, const char *value, int flags)
{
stats_source_t *src_stats = (stats_source_t *)handle;
stats_event_t event;
build_event (&event, src_stats->source, name, value);
event.flags = flags;
if (value)
event.action |= STATS_EVENT_HIDDEN;
else
event.action = STATS_EVENT_HIDDEN;
process_source_stat (src_stats, &event);
}
static void process_source_event (stats_event_t *event)
{
stats_source_t *snode;
avl_tree_wlock (_stats.source_tree);
snode = _find_source(_stats.source_tree, event->source);
if (snode == NULL)
{
if (event->action == STATS_EVENT_REMOVE)
{
avl_tree_unlock (_stats.source_tree);
return;
}
snode = (stats_source_t *)calloc(1,sizeof(stats_source_t));
if (snode == NULL)
abort();
DEBUG1 ("new source stat %s", event->source);
snode->source = (char *)strdup(event->source);
snode->stats_tree = avl_tree_new(_compare_stats, NULL);
snode->flags = STATS_SLAVE|STATS_GENERAL|STATS_HIDDEN;
avl_insert(_stats.source_tree, (void *)snode);
}
if (event->action == STATS_EVENT_REMOVE && event->name == NULL)
{
int fallback_stream = 0;
avl_tree_wlock (snode->stats_tree);
fallback_stream = _find_node (snode->stats_tree, "fallback") == NULL ? 1 : 0;
if (fallback_stream)
avl_delete(_stats.source_tree, (void *)snode, _free_source_stats);
else
avl_tree_unlock (snode->stats_tree);
avl_tree_unlock (_stats.source_tree);
return;
}
avl_tree_wlock (snode->stats_tree);
avl_tree_unlock (_stats.source_tree);
process_source_stat (snode, event);
avl_tree_unlock (snode->stats_tree);
}
