static void
filter_call_init(FilterExprNode *s, GlobalConfig *cfg)
{
FilterCall *self = (FilterCall *) s;
LogExprNode *rule;
rule = cfg_tree_get_object(&cfg->tree, ENC_FILTER, self->rule);
if (rule)
{
/* this is quite fragile and would break whenever the parsing code in
* cfg-grammar.y changes to parse a filter rule. We assume that a
* filter rule has a single child, which contains a LogFilterPipe
* instance as its object. */
LogFilterPipe *filter_pipe = (LogFilterPipe *) rule->children->object;
self->filter_expr = filter_expr_ref(filter_pipe->expr);
filter_expr_init(self->filter_expr, cfg);
}
else
{
msg_error("Referenced filter rule not found in filter() expression",
evt_tag_str("rule", self->rule),
NULL);
}
}
static FilterExprNode *
_init_filter_from_log_node(GlobalConfig *cfg, LogExprNode *node)
{
LogFilterPipe *filter_pipe = (LogFilterPipe *) node->children->object;
FilterExprNode *selected_filter = filter_expr_ref(filter_pipe->expr);
filter_expr_init(selected_filter, cfg);
return selected_filter;
}
