+static pa_hashmap *extract_method_signatures(pa_hashmap *method_handlers) {
+ pa_hashmap *signatures = NULL;
+ pa_dbus_method_handler *handler = NULL;
+ void *state = NULL;
+ pa_strbuf *sig_buf = NULL;
+ unsigned i = 0;
+
+ pa_assert(method_handlers);
+
+ signatures = pa_hashmap_new_full(pa_idxset_string_hash_func, pa_idxset_string_compare_func, NULL, pa_xfree);
+
+ PA_HASHMAP_FOREACH(handler, method_handlers, state) {
+ sig_buf = pa_strbuf_new();
+
+ for (i = 0; i < handler->n_arguments; ++i) {
+ if (pa_streq(handler->arguments[i].direction, "in"))
+ pa_strbuf_puts(sig_buf, handler->arguments[i].type);
+ }
+
+ pa_hashmap_put(signatures, (char *) handler->method_name, pa_strbuf_tostring_free(sig_buf));
+ }
+
+ return signatures;
+}
+
+static void property_handler_free(pa_dbus_property_handler *h) {
+ pa_assert(h);
+
+ pa_xfree((char *) h->property_name);
+ pa_xfree((char *) h->type);
+
+ pa_xfree(h);
+}
+