+const filter_hook_t *filter_run(const filter_t *filter, const query_t *query,
+ filter_context_t *context)
+{
+ debug("running filter %s (%s)", filter->name, ftokens[filter->type]);
+ ++filter_running;
+ filter_result_t res = runners[filter->type](filter, query, context);
+
+ if (res == HTK_ASYNC) {
+ context->current_filter = filter;
+ } else {
+ --filter_running;
+ context->current_filter = NULL;
+ }
+
+ debug("filter run, result is %s", htokens[res]);
+ return filter_hook_for_result(filter, res);
+}
+
+bool filter_test(const filter_t *filter, const query_t *query,
+ filter_context_t *context, filter_result_t result)
+{
+ return !!(runners[filter->type](filter, query, context) == result);
+}
+
+void filter_set_name(filter_t *filter, const char *name, int len)