static sd_bus_slot* bus_slot_free(sd_bus_slot *slot) { assert(slot); bus_slot_disconnect(slot, false); if (slot->destroy_callback) slot->destroy_callback(slot->userdata); free(slot->description); return mfree(slot); }
_public_ sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot) { if (!slot) return NULL; assert(slot->n_ref > 0); if (slot->n_ref > 1) { slot->n_ref --; return NULL; } bus_slot_disconnect(slot); free(slot); return NULL; }
void bus_slot_disconnect(sd_bus_slot *slot, bool unref) { sd_bus *bus; assert(slot); if (!slot->bus) return; switch (slot->type) { case BUS_REPLY_CALLBACK: if (slot->reply_callback.cookie != 0) ordered_hashmap_remove(slot->bus->reply_callbacks, &slot->reply_callback.cookie); if (slot->reply_callback.timeout_usec != 0) prioq_remove(slot->bus->reply_callbacks_prioq, &slot->reply_callback, &slot->reply_callback.prioq_idx); break; case BUS_FILTER_CALLBACK: slot->bus->filter_callbacks_modified = true; LIST_REMOVE(callbacks, slot->bus->filter_callbacks, &slot->filter_callback); break; case BUS_MATCH_CALLBACK: if (slot->match_added) (void) bus_remove_match_internal(slot->bus, slot->match_callback.match_string); if (slot->match_callback.install_slot) { bus_slot_disconnect(slot->match_callback.install_slot, true); slot->match_callback.install_slot = sd_bus_slot_unref(slot->match_callback.install_slot); } slot->bus->match_callbacks_modified = true; bus_match_remove(&slot->bus->match_callbacks, &slot->match_callback); slot->match_callback.match_string = mfree(slot->match_callback.match_string); break; case BUS_NODE_CALLBACK: if (slot->node_callback.node) { LIST_REMOVE(callbacks, slot->node_callback.node->callbacks, &slot->node_callback); slot->bus->nodes_modified = true; bus_node_gc(slot->bus, slot->node_callback.node); } break; case BUS_NODE_ENUMERATOR: if (slot->node_enumerator.node) { LIST_REMOVE(enumerators, slot->node_enumerator.node->enumerators, &slot->node_enumerator); slot->bus->nodes_modified = true; bus_node_gc(slot->bus, slot->node_enumerator.node); } break; case BUS_NODE_OBJECT_MANAGER: if (slot->node_object_manager.node) { LIST_REMOVE(object_managers, slot->node_object_manager.node->object_managers, &slot->node_object_manager); slot->bus->nodes_modified = true; bus_node_gc(slot->bus, slot->node_object_manager.node); } break; case BUS_NODE_VTABLE: if (slot->node_vtable.node && slot->node_vtable.interface && slot->node_vtable.vtable) { const sd_bus_vtable *v; for (v = slot->node_vtable.vtable; v->type != _SD_BUS_VTABLE_END; v = bus_vtable_next(slot->node_vtable.vtable, v)) { struct vtable_member *x = NULL; switch (v->type) { case _SD_BUS_VTABLE_METHOD: { struct vtable_member key; key.path = slot->node_vtable.node->path; key.interface = slot->node_vtable.interface; key.member = v->x.method.member; x = hashmap_remove(slot->bus->vtable_methods, &key); break; } case _SD_BUS_VTABLE_PROPERTY: case _SD_BUS_VTABLE_WRITABLE_PROPERTY: { struct vtable_member key; key.path = slot->node_vtable.node->path; key.interface = slot->node_vtable.interface; key.member = v->x.method.member; x = hashmap_remove(slot->bus->vtable_properties, &key); break; }} free(x); } } slot->node_vtable.interface = mfree(slot->node_vtable.interface); if (slot->node_vtable.node) { LIST_REMOVE(vtables, slot->node_vtable.node->vtables, &slot->node_vtable); slot->bus->nodes_modified = true; bus_node_gc(slot->bus, slot->node_vtable.node); } break; default: assert_not_reached("Wut? Unknown slot type?"); } bus = slot->bus; slot->type = _BUS_SLOT_INVALID; slot->bus = NULL; LIST_REMOVE(slots, bus->slots, slot); if (!slot->floating) sd_bus_unref(bus); else if (unref) sd_bus_slot_unref(slot); }