static inline void rrdsetvar_create_variables(RRDSETVAR *rs) {
RRDSET *st = rs->rrdset;
RRDHOST *host = st->rrdhost;
RRDVAR_OPTIONS options = rs->options;
if(rs->options & RRDVAR_OPTION_ALLOCATED)
options &= ~ RRDVAR_OPTION_ALLOCATED;
// ------------------------------------------------------------------------
// free the old ones (if any)
rrdsetvar_free_variables(rs);
// ------------------------------------------------------------------------
// KEYS
char buffer[RRDVAR_MAX_LENGTH + 1];
snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rs->variable);
rs->key_fullid = strdupz(buffer);
snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rs->variable);
rs->key_fullname = strdupz(buffer);
// ------------------------------------------------------------------------
// CHART
rs->var_local = rrdvar_create_and_index("local", &st->rrdvar_root_index, rs->variable, rs->type, options, rs->value);
// ------------------------------------------------------------------------
// FAMILY
rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rs->key_fullid, rs->type, options, rs->value);
rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->rrdvar_root_index, rs->key_fullname, rs->type, options, rs->value);
// ------------------------------------------------------------------------
// HOST
rs->var_host = rrdvar_create_and_index("host", &host->rrdvar_root_index, rs->key_fullid, rs->type, options, rs->value);
rs->var_host_name = rrdvar_create_and_index("host", &host->rrdvar_root_index, rs->key_fullname, rs->type, options, rs->value);
}
static RRDVAR *rrdvar_custom_variable_create(const char *scope, avl_tree_lock *tree_lock, const char *name) {
calculated_number *v = callocz(1, sizeof(calculated_number));
*v = NAN;
RRDVAR *rv = rrdvar_create_and_index(scope, tree_lock, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v);
if(unlikely(!rv)) {
free(v);
debug(D_VARIABLES, "Requested variable '%s' already exists - possibly 2 plugins are updating it at the same time.", name);
char *variable = strdupz(name);
rrdvar_fix_name(variable);
uint32_t hash = simple_hash(variable);
rv = rrdvar_index_find(tree_lock, variable, hash);
freez(variable);
}
return rv;
}
